{"id":8111,"date":"2026-08-19T10:22:34","date_gmt":"2026-08-19T08:22:34","guid":{"rendered":"https:\/\/eodhd.com\/financial-apis\/?p=8111"},"modified":"2026-08-19T10:22:35","modified_gmt":"2026-08-19T08:22:35","slug":"tick-data-api-us-stock-market","status":"publish","type":"post","link":"https:\/\/eodhd.com\/financial-apis\/tick-data-api-us-stock-market","title":{"rendered":"Tick Data API: US Stock Market"},"content":{"rendered":"\n

The Tick Data API returns individual trades on the US equity market \u2014 one record per execution, with a millisecond timestamp, the price, the size, the venue that printed it and the sale conditions that qualify it. History reaches back to the first trading day of 2008, and the data covers every US venue rather than a single exchange feed.<\/p>\n\n\n\n

Coverage spans approximately 80,000 tickers<\/strong> \u2014 current and delisted companies alike \u2014 with 16,000+ securities<\/strong> updated every trading day, and the archive now holds roughly 10 terabytes<\/strong> of history in total. It keeps growing with every session added.<\/p>\n\n\n\n

This is the raw material for market-microstructure work: measuring spreads and price impact, reconstructing the tape, backtesting at the execution level, and separating on-exchange prints from off-exchange ones. Note the response shape before you write a parser \u2014 ticks come back as parallel arrays<\/strong>, one array per field, not as a list of objects.<\/p>\n\n\n\n\n\n\n

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Requesting ticks<\/h2>\n\n\n\n

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\n \n <\/use>\n <\/svg>\n Test Drive with \"DEMO\" Key\n <\/div>\n
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  1. \n You can start with \"DEMO<\/strong>\" API key to test the data for a few tickers only:\n AAPL.US<\/a>,\n TSLA.US<\/a>,\n VTI.US<\/a>,\n AMZN.US<\/a>,\n BTC-USD.CC<\/a>\n and\n EURUSD.FOREX<\/a>.\n For these tickers,\n all of our types of data (APIs)<\/a>,\n including\n Real-Time Data<\/a>,\n are available without limitations.\n <\/li>\n
  2. \n Register for the free plan<\/strong> to receive your API key (limited to 20 API calls per day) with access to\n End-Of-Day Historical Stock Market Data API<\/a>\n for any ticker, but within the past year only. Plus a\n List of tickers per Exchange<\/a>\n is available.\n <\/li>\n
  3. \n We recommend to explore\n our plans<\/a>,\n starting from $19.99<\/strong>, to access the necessary type of data without limitations.\n <\/li>\n <\/ol>\n <\/div>\n<\/p>\n\n\n
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    https:\/\/eodhd.com\/api\/ticks\/?s=AAPL&from=1694455200&to=1694541600&limit=1000&api_token=YOUR_API_TOKEN&fmt=json<\/code><\/pre>\n<\/div>\n\n\n
    Parameters<\/h4>\n\n\n
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    \n                    api_token<\/code>\n        \n                    string<\/span>\n        \n        \n            required        <\/span>\n    <\/div>\n\n    
    \n        Your EODHD API token<\/span>\n            <\/div>\n<\/div>\n\n\n
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    \n                    s<\/code>\n        \n                    string<\/span>\n        \n        \n            optional        <\/span>\n    <\/div>\n\n    
    \n        Ticker symbol, with or without the exchange suffix \u2014 AAPL and AAPL.US are equivalent. US equities only; a non-US symbol returns HTTP 404. Omitting the parameter silently falls back to AAPL, so always pass it<\/span>\n            <\/div>\n<\/div>\n\n\n
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    \n                    from<\/code>\n        \n                    integer<\/span>\n        \n        \n            optional        <\/span>\n    <\/div>\n\n    
    \n        Start of the window as a UNIX timestamp in seconds, UTC. For example 1694455200 is 2023-09-11 18:00:00 UTC<\/span>\n            <\/div>\n<\/div>\n\n\n
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    \n                    to<\/code>\n        \n                    integer<\/span>\n        \n        \n            optional        <\/span>\n    <\/div>\n\n    
    \n        End of the window as a UNIX timestamp in seconds, UTC. For example 1694541600 is 2023-09-12 18:00:00 UTC<\/span>\n            <\/div>\n<\/div>\n\n\n
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    \n                    limit<\/code>\n        \n                    integer<\/span>\n        \n        \n            optional        <\/span>\n    <\/div>\n\n    
    \n        Maximum number of ticks to return. When passed it must be between 1 and 10000 \u2014 anything outside that range, including 0, returns HTTP 422. When omitted there is no cap at all and the entire window is returned<\/span>\n                    (Default: no limit, Range: 1-10000)<\/em><\/span>\n            <\/div>\n<\/div>\n\n\n
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    \n                    fmt<\/code>\n        \n                    enum<\/span>\n        \n        \n            optional        <\/span>\n    <\/div>\n\n    
    \n        Response format. Only json is supported \u2014 fmt=csv is accepted and ignored<\/span>\n                    (Default: json)<\/em><\/span>\n            <\/div>\n<\/div>\n\n<\/div>\n\n\n    
    \n        <\/svg><\/span>\n        
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    Two units in one endpoint: from and to are UNIX timestamps in seconds<\/strong>, UTC, while the ts field in the response is in milliseconds<\/strong>. Divide by 1000 before feeding a returned timestamp back into a query. Always pass both bounds explicitly \u2014 when they are omitted the endpoint falls back to yesterday, and on a non-trading day that fallback returns HTTP 404.<\/p>\n\n<\/div>\n    <\/div>\n    \n\n    
    \n        <\/svg><\/span>\n        
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    The 10,000 ceiling applies only when you pass limit \u2014 omitting it removes the cap entirely. The full AAPL session of 11 September 2023 comes back as 722,444 ticks in a 33 MB response<\/strong>, and it still costs one API call however large it is. Decide deliberately which you want.<\/p>\n\n<\/div>\n    <\/div>\n    \n\n\n
    To walk a long window in slices, page on seq<\/strong> rather than on time \u2014 but scope the paging to one trading day. seq is unique and strictly increasing within<\/em> a session and resets at the start of the next one: in a single response spanning two sessions it drops from 511,729,487 back to 65,050, and 32 ticks end up sharing a seq with a trade from the other day. Time is no better as a cursor, because ts repeats \u2014 56% of the ticks in that AAPL session share a millisecond with another trade.<\/p>\n\n\n\n
    Both bounds are inclusive, and they are compared in milliseconds: a tick is returned when from \u00d7 1000 \u2264 ts \u2264 to \u00d7 1000. Two consequences worth knowing. A request where from equals to matches only trades landing on that exact millisecond, so in practice it comes back empty. And two adjacent slices that share a boundary second both contain the trades printed in that second \u2014 advance from by one second, or de-duplicate on seq within the day.<\/p>\n\n\n\n
    Results arrive in time order: ts never decreases through a response, though it does repeat, while seq strictly increases within a session. An empty window is not an error \u2014 it returns HTTP 200, and the body is either the usual object with seven empty arrays or a bare empty JSON array, so accept both shapes. HTTP 404 means something else: an unknown symbol, a non-US symbol, a delisted symbol that falls outside tick coverage, or the yesterday fallback described above. And whatever you pass in fmt, the response is JSON.<\/p>\n\n\n\n
    Request Example<\/h4>\n\n\n\n
        
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