{
  "info": {
    "_postman_id": "f4a973b5-d2c2-487f-b976-d78f0d7d5028",
    "name": "Theta Data v3 At-Time API",
    "description": "Real-time and historic stock, options, and index data!",
    "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json",
    "createdAt": "2026-07-28T03:11:24.000Z",
    "updatedAt": "2026-07-28T03:11:24.000Z",
    "lastUpdatedBy": "35240",
    "uid": "35240-f4a973b5-d2c2-487f-b976-d78f0d7d5028"
  },
  "item": [
    {
      "name": "stock",
      "item": [
        {
          "name": "at_time",
          "item": [
            {
              "name": "trade",
              "item": [
                {
                  "name": "Trade",
                  "id": "a09afa8f-f988-4a0f-8f8d-19a370d43d91",
                  "protocolProfileBehavior": {
                    "disableBodyPruning": true
                  },
                  "request": {
                    "method": "GET",
                    "header": [
                      {
                        "key": "Accept",
                        "value": "text/csv"
                      }
                    ],
                    "url": {
                      "raw": "{{baseUrl}}/stock/at_time/trade?symbol=<string>&start_date=<date>&end_date=<date>&time_of_day=<time>&venue=nqb&format=csv",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "stock",
                        "at_time",
                        "trade"
                      ],
                      "query": [
                        {
                          "description": "(Required) The stock or index symbol, or underlying symbol for options.",
                          "key": "symbol",
                          "value": "<string>"
                        },
                        {
                          "description": "(Required) The start date (inclusive).",
                          "key": "start_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The end date (inclusive).",
                          "key": "end_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The time of the day to fetch data for; assumed to be America/New_York.",
                          "key": "time_of_day",
                          "value": "<time>"
                        },
                        {
                          "description": "Used to specify the venue of the real time or historic request. ``nqb`` = Nasdaq Basic; ``utp_cta`` = merged UTP & CTA.",
                          "key": "venue",
                          "value": "nqb"
                        },
                        {
                          "description": "The format of the data when returned to the user.",
                          "key": "format",
                          "value": "csv"
                        }
                      ]
                    },
                    "description": "#### Real-time request:\n- Returns a real-time session from the [Nasdaq Basic feed](/Articles/Data-And-Requests/The-SIPs.html#nasdaq-basic) if the account has a [stocks standard or pro subscription](https://www.thetadata.net/subscribe.html#stocks).\n- Returns a 15-minute delayed session from the [UTP & CTA feeds](/Articles/Data-And-Requests/The-SIPs.html#equities-cta-utp) account has the [stocks value subscription](https://www.thetadata.net/subscribe.html#stocks) subscription.\n\n#### Historical request:\nReturns the last trade reported by [UTP & CTA feeds](/Articles/Data-And-Requests/The-SIPs.html#equities-cta-utp) at a specified millisecond of the day.\nTrade condition mappings can be found [here](/Articles/Errors-Exchanges-Conditions/Trade-Conditions.html).\n"
                  },
                  "response": [
                    {
                      "id": "e192c422-2002-4897-85fb-b742e0389372",
                      "name": "Returns the last trade for a given symbol and specified time of day",
                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "text/csv"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/stock/at_time/trade?symbol=<string>&start_date=<date>&end_date=<date>&time_of_day=<time>&venue=nqb&format=csv",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "stock",
                            "at_time",
                            "trade"
                          ],
                          "query": [
                            {
                              "description": "(Required) The stock or index symbol, or underlying symbol for options.",
                              "key": "symbol",
                              "value": "<string>"
                            },
                            {
                              "description": "(Required) The start date (inclusive).",
                              "key": "start_date",
                              "value": "<date>"
                            },
                            {
                              "description": "(Required) The end date (inclusive).",
                              "key": "end_date",
                              "value": "<date>"
                            },
                            {
                              "description": "(Required) The time of the day to fetch data for; assumed to be America/New_York.",
                              "key": "time_of_day",
                              "value": "<time>"
                            },
                            {
                              "description": "Used to specify the venue of the real time or historic request. ``nqb`` = Nasdaq Basic; ``utp_cta`` = merged UTP & CTA.",
                              "key": "venue",
                              "value": "nqb"
                            },
                            {
                              "description": "The format of the data when returned to the user.",
                              "key": "format",
                              "value": "csv"
                            }
                          ]
                        }
                      },
                      "status": "OK",
                      "code": 200,
                      "_postman_previewlanguage": "json",
                      "header": [
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                          "key": "Content-Type",
                          "value": "application/json"
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                      ],
                      "cookie": [],
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                      "body": "[\n  {\n    \"timestamp\": \"<dateTime>\",\n    \"sequence\": \"<integer>\",\n    \"ext_condition1\": \"<integer>\",\n    \"ext_condition2\": \"<integer>\",\n    \"ext_condition3\": \"<integer>\",\n    \"ext_condition4\": \"<integer>\",\n    \"condition\": \"<integer>\",\n    \"size\": \"<integer>\",\n    \"exchange\": \"<integer>\",\n    \"price\": \"<number>\"\n  },\n  {\n    \"timestamp\": \"<dateTime>\",\n    \"sequence\": \"<integer>\",\n    \"ext_condition1\": \"<integer>\",\n    \"ext_condition2\": \"<integer>\",\n    \"ext_condition3\": \"<integer>\",\n    \"ext_condition4\": \"<integer>\",\n    \"condition\": \"<integer>\",\n    \"size\": \"<integer>\",\n    \"exchange\": \"<integer>\",\n    \"price\": \"<number>\"\n  }\n]",
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                      "updatedAt": "2026-07-28T03:11:25.000Z",
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                  "createdAt": "2026-07-28T03:11:25.000Z",
                  "updatedAt": "2026-07-28T03:11:25.000Z",
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              ],
              "id": "662f6f02-06be-4b7c-9d22-c108aba07185",
              "createdAt": "2026-07-28T03:11:25.000Z",
              "updatedAt": "2026-07-28T03:11:25.000Z",
              "uid": "35240-662f6f02-06be-4b7c-9d22-c108aba07185"
            },
            {
              "name": "quote",
              "item": [
                {
                  "name": "Quote",
                  "id": "2f503634-c4e8-4d2b-8a42-067c35b11c41",
                  "protocolProfileBehavior": {
                    "disableBodyPruning": true
                  },
                  "request": {
                    "method": "GET",
                    "header": [
                      {
                        "key": "Accept",
                        "value": "text/csv"
                      }
                    ],
                    "url": {
                      "raw": "{{baseUrl}}/stock/at_time/quote?symbol=<string>&start_date=<date>&end_date=<date>&time_of_day=<time>&venue=nqb&format=csv",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "stock",
                        "at_time",
                        "quote"
                      ],
                      "query": [
                        {
                          "description": "(Required) The stock or index symbol, or underlying symbol for options.",
                          "key": "symbol",
                          "value": "<string>"
                        },
                        {
                          "description": "(Required) The start date (inclusive).",
                          "key": "start_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The end date (inclusive).",
                          "key": "end_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The time of the day to fetch data for; assumed to be America/New_York.",
                          "key": "time_of_day",
                          "value": "<time>"
                        },
                        {
                          "description": "Used to specify the venue of the real time or historic request. ``nqb`` = Nasdaq Basic; ``utp_cta`` = merged UTP & CTA.",
                          "key": "venue",
                          "value": "nqb"
                        },
                        {
                          "description": "The format of the data when returned to the user.",
                          "key": "format",
                          "value": "csv"
                        }
                      ]
                    },
                    "description": "#### Real-time request:\n  - Subscription tier standard or higher will default to NQB.\n  - Real-time last BBO quote at-time_of_day-time from the [Nasdaq Basic feed](/Articles/Data-And-Requests/The-SIPs.html#nasdaq-basic) if the account has a [stocks standard or pro subscription](https://www.thetadata.net/subscribe.html#stocks).\n  - 15-minute delayed NBBO quote at-time_of_day-time from the [UTP & CTA feeds](/Articles/Data-And-Requests/The-SIPs.html#equities-cta-utp) account has the [stocks value subscription](https://www.thetadata.net/subscribe.html#stocks) subscription.\n\n#### Historical request:\n  Returns the last NBBO quote reported by [UTP & CTA feeds](/Articles/Data-And-Requests/The-SIPs.html#equities-cta-utp) at a specified millisecond of the day.\n"
                  },
                  "response": [
                    {
                      "id": "1dc2c068-c62b-4464-a903-e11df2d8cbd7",
                      "name": "Returns the last quote for a given symbol between specified dates (inclusive) with a one minute interval",
                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "text/csv"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/stock/at_time/quote?symbol=<string>&start_date=<date>&end_date=<date>&time_of_day=<time>&venue=nqb&format=csv",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "stock",
                            "at_time",
                            "quote"
                          ],
                          "query": [
                            {
                              "description": "(Required) The stock or index symbol, or underlying symbol for options.",
                              "key": "symbol",
                              "value": "<string>"
                            },
                            {
                              "description": "(Required) The start date (inclusive).",
                              "key": "start_date",
                              "value": "<date>"
                            },
                            {
                              "description": "(Required) The end date (inclusive).",
                              "key": "end_date",
                              "value": "<date>"
                            },
                            {
                              "description": "(Required) The time of the day to fetch data for; assumed to be America/New_York.",
                              "key": "time_of_day",
                              "value": "<time>"
                            },
                            {
                              "description": "Used to specify the venue of the real time or historic request. ``nqb`` = Nasdaq Basic; ``utp_cta`` = merged UTP & CTA.",
                              "key": "venue",
                              "value": "nqb"
                            },
                            {
                              "description": "The format of the data when returned to the user.",
                              "key": "format",
                              "value": "csv"
                            }
                          ]
                        }
                      },
                      "status": "OK",
                      "code": 200,
                      "_postman_previewlanguage": "json",
                      "header": [
                        {
                          "key": "Content-Type",
                          "value": "application/json"
                        }
                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "[\n  {\n    \"timestamp\": \"<dateTime>\",\n    \"bid_size\": \"<integer>\",\n    \"bid_exchange\": \"<integer>\",\n    \"bid\": \"<number>\",\n    \"bid_condition\": \"<integer>\",\n    \"ask_size\": \"<integer>\",\n    \"ask_exchange\": \"<integer>\",\n    \"ask\": \"<number>\",\n    \"ask_condition\": \"<integer>\"\n  },\n  {\n    \"timestamp\": \"<dateTime>\",\n    \"bid_size\": \"<integer>\",\n    \"bid_exchange\": \"<integer>\",\n    \"bid\": \"<number>\",\n    \"bid_condition\": \"<integer>\",\n    \"ask_size\": \"<integer>\",\n    \"ask_exchange\": \"<integer>\",\n    \"ask\": \"<number>\",\n    \"ask_condition\": \"<integer>\"\n  }\n]",
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                      "updatedAt": "2026-07-28T03:11:25.000Z",
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                  "uid": "35240-2f503634-c4e8-4d2b-8a42-067c35b11c41"
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              "createdAt": "2026-07-28T03:11:25.000Z",
              "updatedAt": "2026-07-28T03:11:25.000Z",
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          "id": "5fbc6ab4-37b3-4ea3-9dea-bd54b76bc40e",
          "createdAt": "2026-07-28T03:11:25.000Z",
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          "uid": "35240-5fbc6ab4-37b3-4ea3-9dea-bd54b76bc40e"
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      "id": "32c7201e-88d8-4343-a020-e2d84f8bca4c",
      "createdAt": "2026-07-28T03:11:25.000Z",
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      "uid": "35240-32c7201e-88d8-4343-a020-e2d84f8bca4c"
    },
    {
      "name": "option",
      "item": [
        {
          "name": "at_time",
          "item": [
            {
              "name": "trade",
              "item": [
                {
                  "name": "Trade",
                  "id": "1db39e72-3abf-4459-b474-255c21aad7f3",
                  "protocolProfileBehavior": {
                    "disableBodyPruning": true
                  },
                  "request": {
                    "method": "GET",
                    "header": [
                      {
                        "key": "Accept",
                        "value": "text/csv"
                      }
                    ],
                    "url": {
                      "raw": "{{baseUrl}}/option/at_time/trade?symbol=<string>&start_date=<date>&end_date=<date>&time_of_day=<time>&expiration=<date>&strike=*&right=both&max_dte=<integer>&strike_range=<integer>&format=csv",
                      "host": [
                        "{{baseUrl}}"
                      ],
                      "path": [
                        "option",
                        "at_time",
                        "trade"
                      ],
                      "query": [
                        {
                          "description": "(Required) The stock or index symbol, or underlying symbol for options.",
                          "key": "symbol",
                          "value": "<string>"
                        },
                        {
                          "description": "(Required) The start date (inclusive).",
                          "key": "start_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The end date (inclusive).",
                          "key": "end_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The time of the day to fetch data for; assumed to be America/New_York.",
                          "key": "time_of_day",
                          "value": "<time>"
                        },
                        {
                          "description": "(Required) The expiration of the contract in `YYYY-MM-DD` or `YYYYMMDD` format, or `*` for all expirations.",
                          "key": "expiration",
                          "value": "<date>"
                        },
                        {
                          "description": "The strike price of the contract in dollars (ie `100.00` for `$100.00`), or `*` for all strikes.",
                          "key": "strike",
                          "value": "*"
                        },
                        {
                          "description": "The right (call or put) of the contract.",
                          "key": "right",
                          "value": "both"
                        },
                        {
                          "description": "If specified, only contracts with a full calendar day 'Days to Expiration' (DTE) less than or equal to this number will be returned.",
                          "key": "max_dte",
                          "value": "<integer>"
                        },
                        {
                          "description": "Limits the number of contracts returned relative to the underlying's spot price. For a specified value 'n', this returns 'n' strikes above and 'n' strikes below the spot price, plus one at-the-money (ATM) strike (where spot price = strike price), if available. This results in a maximum of `2n + 1` strikes.",
                          "key": "strike_range",
                          "value": "<integer>"
                        },
                        {
                          "description": "The format of the data when returned to the user.",
                          "key": "format",
                          "value": "csv"
                        }
                      ]
                    },
                    "description": "- Returns the last trade reported by [OPRA](/Articles/Data-And-Requests/The-SIPs.html) at a specified millisecond of the day.\n- Trade condition mappings can be found [here](/Articles/Errors-Exchanges-Conditions/Trade-Conditions.html).\n- Extended trade conditions are not reported by [OPRA](/Articles/Data-And-Requests/The-SIPs.html) for options, so they can be ignored.\n- The ``time_of_day``parameter represents the 00:00:00.000 ET that the trade should be provided for.\n"
                  },
                  "response": [
                    {
                      "id": "6ba4735c-abe7-4615-b21d-aa4cda45d0b5",
                      "name": "Returns the last trade for an option contract",
                      "originalRequest": {
                        "method": "GET",
                        "header": [
                          {
                            "key": "Accept",
                            "value": "text/csv"
                          }
                        ],
                        "url": {
                          "raw": "{{baseUrl}}/option/at_time/trade?symbol=<string>&start_date=<date>&end_date=<date>&time_of_day=<time>&expiration=<date>&strike=*&right=both&max_dte=<integer>&strike_range=<integer>&format=csv",
                          "host": [
                            "{{baseUrl}}"
                          ],
                          "path": [
                            "option",
                            "at_time",
                            "trade"
                          ],
                          "query": [
                            {
                              "description": "(Required) The stock or index symbol, or underlying symbol for options.",
                              "key": "symbol",
                              "value": "<string>"
                            },
                            {
                              "description": "(Required) The start date (inclusive).",
                              "key": "start_date",
                              "value": "<date>"
                            },
                            {
                              "description": "(Required) The end date (inclusive).",
                              "key": "end_date",
                              "value": "<date>"
                            },
                            {
                              "description": "(Required) The time of the day to fetch data for; assumed to be America/New_York.",
                              "key": "time_of_day",
                              "value": "<time>"
                            },
                            {
                              "description": "(Required) The expiration of the contract in `YYYY-MM-DD` or `YYYYMMDD` format, or `*` for all expirations.",
                              "key": "expiration",
                              "value": "<date>"
                            },
                            {
                              "description": "The strike price of the contract in dollars (ie `100.00` for `$100.00`), or `*` for all strikes.",
                              "key": "strike",
                              "value": "*"
                            },
                            {
                              "description": "The right (call or put) of the contract.",
                              "key": "right",
                              "value": "both"
                            },
                            {
                              "description": "If specified, only contracts with a full calendar day 'Days to Expiration' (DTE) less than or equal to this number will be returned.",
                              "key": "max_dte",
                              "value": "<integer>"
                            },
                            {
                              "description": "Limits the number of contracts returned relative to the underlying's spot price. For a specified value 'n', this returns 'n' strikes above and 'n' strikes below the spot price, plus one at-the-money (ATM) strike (where spot price = strike price), if available. This results in a maximum of `2n + 1` strikes.",
                              "key": "strike_range",
                              "value": "<integer>"
                            },
                            {
                              "description": "The format of the data when returned to the user.",
                              "key": "format",
                              "value": "csv"
                            }
                          ]
                        }
                      },
                      "status": "OK",
                      "code": 200,
                      "_postman_previewlanguage": "json",
                      "header": [
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                      ],
                      "cookie": [],
                      "responseTime": null,
                      "body": "[\n  {\n    \"symbol\": \"<string>\",\n    \"expiration\": \"<date>\",\n    \"strike\": \"<number>\",\n    \"right\": \"<string>\",\n    \"timestamp\": \"<dateTime>\",\n    \"sequence\": \"<integer>\",\n    \"ext_condition1\": \"<integer>\",\n    \"ext_condition2\": \"<integer>\",\n    \"ext_condition3\": \"<integer>\",\n    \"ext_condition4\": \"<integer>\",\n    \"condition\": \"<integer>\",\n    \"size\": \"<integer>\",\n    \"exchange\": \"<integer>\",\n    \"price\": \"<number>\"\n  },\n  {\n    \"symbol\": \"<string>\",\n    \"expiration\": \"<date>\",\n    \"strike\": \"<number>\",\n    \"right\": \"<string>\",\n    \"timestamp\": \"<dateTime>\",\n    \"sequence\": \"<integer>\",\n    \"ext_condition1\": \"<integer>\",\n    \"ext_condition2\": \"<integer>\",\n    \"ext_condition3\": \"<integer>\",\n    \"ext_condition4\": \"<integer>\",\n    \"condition\": \"<integer>\",\n    \"size\": \"<integer>\",\n    \"exchange\": \"<integer>\",\n    \"price\": \"<number>\"\n  }\n]",
                      "createdAt": "2026-07-28T03:11:25.000Z",
                      "updatedAt": "2026-07-28T03:11:25.000Z",
                      "uid": "35240-6ba4735c-abe7-4615-b21d-aa4cda45d0b5"
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                  "createdAt": "2026-07-28T03:11:25.000Z",
                  "updatedAt": "2026-07-28T03:11:25.000Z",
                  "uid": "35240-1db39e72-3abf-4459-b474-255c21aad7f3"
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              "id": "ac419f6d-03f7-4ad8-b52d-2ba63a33ac48",
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              "updatedAt": "2026-07-28T03:11:25.000Z",
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            {
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                    "url": {
                      "raw": "{{baseUrl}}/option/at_time/quote?symbol=<string>&start_date=<date>&end_date=<date>&time_of_day=<time>&expiration=<date>&strike=*&right=both&max_dte=<integer>&strike_range=<integer>&format=csv",
                      "host": [
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                      "path": [
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                      "query": [
                        {
                          "description": "(Required) The stock or index symbol, or underlying symbol for options.",
                          "key": "symbol",
                          "value": "<string>"
                        },
                        {
                          "description": "(Required) The start date (inclusive).",
                          "key": "start_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The end date (inclusive).",
                          "key": "end_date",
                          "value": "<date>"
                        },
                        {
                          "description": "(Required) The time of the day to fetch data for; assumed to be America/New_York.",
                          "key": "time_of_day",
                          "value": "<time>"
                        },
                        {
                          "description": "(Required) The expiration of the contract in `YYYY-MM-DD` or `YYYYMMDD` format, or `*` for all expirations.",
                          "key": "expiration",
                          "value": "<date>"
                        },
                        {
                          "description": "The strike price of the contract in dollars (ie `100.00` for `$100.00`), or `*` for all strikes.",
                          "key": "strike",
                          "value": "*"
                        },
                        {
                          "description": "The right (call or put) of the contract.",
                          "key": "right",
                          "value": "both"
                        },
                        {
                          "description": "If specified, only contracts with a full calendar day 'Days to Expiration' (DTE) less than or equal to this number will be returned.",
                          "key": "max_dte",
                          "value": "<integer>"
                        },
                        {
                          "description": "Limits the number of contracts returned relative to the underlying's spot price. For a specified value 'n', this returns 'n' strikes above and 'n' strikes below the spot price, plus one at-the-money (ATM) strike (where spot price = strike price), if available. This results in a maximum of `2n + 1` strikes.",
                          "key": "strike_range",
                          "value": "<integer>"
                        },
                        {
                          "description": "The format of the data when returned to the user.",
                          "key": "format",
                          "value": "csv"
                        }
                      ]
                    },
                    "description": "- Returns the last NBBO quote reported by [OPRA](/Articles/Data-And-Requests/The-SIPs.html) at a specified millisecond of the day.\n- The ``time_of_day``parameter represents the 00:00:00.000 ET that the quote should be provided for.\n- Using a sub-minute ``time_of_day`` (e.g. ``09:30:10.000``) will significantly slow the request and may cause it to hang, particularly when using ``expiration=*``. Use a minute-boundary time (e.g. ``09:30:00.000``) instead.\n"
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                              "key": "start_date",
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                              "description": "(Required) The end date (inclusive).",
                              "key": "end_date",
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                              "value": "<time>"
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                              "description": "(Required) The expiration of the contract in `YYYY-MM-DD` or `YYYYMMDD` format, or `*` for all expirations.",
                              "key": "expiration",
                              "value": "<date>"
                            },
                            {
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                              "description": "The right (call or put) of the contract.",
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                              "key": "strike_range",
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                      "path": [
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                        },
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                      ]
                    },
                    "description": "- Retrieves historical indices price reports. [Exchanges](/Articles/Data-And-Requests/The-SIPs.html) typically generate a price report every second for popular indices like SPX.\n- The ``time_of_day`` parameter represents the 00:00:00.000 ET that the price should be provided for.\n"
                  },
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