---
title: "US Equities Trade Only Second Bar Excluding FINRA/TRF Trades"
method: GET
path: "/v1/data/us-equity/trades-1sec-nofinra/{identifier}"
tags: ["us-equity-intraday-bar"]
---

# US Equities Trade Only Second Bar Excluding FINRA/TRF Trades

`GET /v1/data/us-equity/trades-1sec-nofinra/{identifier}`

## Request

- Base URL: `https://api.algoseek.com`
- URL: `https://api.algoseek.com/v1/data/us-equity/trades-1sec-nofinra/{identifier}`
- Auth: API key in header `X-API-KEY`
- TypeScript: <https://skmtc.dev/algoseek/apis/datasets-api/docs/v1/data/us-equity/trades-1sec-nofinra/:identifier/get.ts> (a function with typed inputs; its response is checked against the schema)

The U.S. Equities Trade-Only Second Bar (Excluding FINRA/TRF Trades) dataset provides a one-second summary of executed trades for U.S. exchange-listed equities, constructed exclusively from on-exchange trade activity. Each one-second interval includes Open, High, Low, Close, and Volume (OHLCV) metrics, along with VWAP and trade count, delivering a high-resolution intraday view of trading activity based solely on lit exchange executions. Off-exchange trades reported to FINRA Trade Reporting Facilities (TRF) are explicitly excluded, enabling clean isolation of exchange-driven price formation and volume. The dataset is derived from the consolidated Equity Securities Information Processor (SIP) trade feed and covers all public-traded U.S. equity issue types, including common and preferred stocks, ETFs, ETNs, ADRs, warrants, and units.

 For more details, please refer to the dataset documentation: [US Equities Trade Only Second Bar Excluding FINRA/TRF Trades Guide](https://us-equity-market-data-docs.s3.us-east-1.amazonaws.com/algoseek.US.EquityTrades.Only.Minute.Bars.pdf).

<details>
<summary>**Advanced Filtering**</summary>

You can provide one or multiple filter expressions based on the dataset's columns to narrow down the results. For example, `StartDate.gt=2023-01-01&StartDate.lt=2023-12-31`, `Ticker=AAPL`. 

Please refer to the <a href="https://algoseek.com/docs/rest-api/tutorial/advanced-filtering">Advanced Filtering Guide</a> for the extensive reference.
</details>

## Path parameters

- `identifier` string, required: Dataset's security identifier

## Query parameters

- `period` string, nullable: A string representing the time period for which to retrieve data. The format and accepted values depend on the dataset. If not provided, data for all available periods will be returned.
- `sort` string, nullable: Sorting criteria for the results. Provide a column name with optional prefix '+' for ascending order, or prefix with '-' for descending order. Multiple sorting fields may be supported depending on the dataset. If sort prefix is not provided, the ascending order is applied.
- `columns` string, nullable: A comma-separated list of columns to include in the response. Use this parameter to select only specific fields from the dataset. If not provided, all available columns will be returned.
- `offset` integer: Number of records to skip before returning results. To be used with the `limit` parameter for pagination. If not provided, defaults to 0.
- `limit` integer: Maximum number of records to return. Default and maximum values depend on the response format; see `format_limits` in the schema for details.
- `response_format` 'json' | 'csv' | 'csv_gzip': Note the lowercase which is used for the consistency with other projects and tools

## Response `200`

JSON, CSV file, or gzip-compressed CSV file, depending on the value of `response_format` query parameter

- USEquitiesTradeOnlySecondBarExcludingFINRATRFTradesDataOut
  - `data` USEquitiesTradeOnlySecondBarExcludingFINRATRFTradesDataDetailsOut[], required
    - `TradeDate` string, date, nullable: The trading day
    - `BarDateTime` string, date-time, nullable: The timestamp of the bar start (ET)
    - `Ticker` string, nullable: Symbol name
    - `ASID` integer, nullable: A unique identifier for a security
    - `FirstTradePrice` number, nullable: Price of the first trade
    - `HighTradePrice` number, nullable: Trade with the highest price
    - `LowTradePrice` number, nullable: Trade with the lowest price
    - `LastTradePrice` number, nullable: Price of the last trade
    - `VolumeWeightPrice` number, nullable: Volume-weighted average price
    - `Volume` integer, nullable: Total number of shares traded
    - `TotalTrades` integer, nullable: Total number of trades
  - `pagination` PaginationDetailsOut, required
    - `offset` integer: The number of records skipped to fetch the current page
    - `limit` integer, required: The maximum number of records in the current page
    - `next_offset` integer, nullable: The number of records to skip to fetch the next page

## Other responses

- `403`: Forbidden
- `422`: Validation Error
- `429`: Request rejected because the identity or team exceeded a configured monthly or per-minute usage quota. When available, the response includes rate-limit headers describing the current quota.

## Changes

- **2026-09-19** `32e378e13bd4`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/algoseek/apis/datasets-api/changes/v1/data/us-equity/trades-1sec-nofinra/:identifier/get.md)

---

[API](https://skmtc.dev/algoseek/apis/datasets-api.md) - [All operations](https://skmtc.dev/algoseek/apis/datasets-api/llms.txt) - [OpenAPI document](https://skmtc.dev/algoseek/apis/datasets-api/revisions/0eaff26d2eca?raw)