{"id":736,"date":"2026-07-23T22:48:20","date_gmt":"2026-07-24T02:48:20","guid":{"rendered":"https:\/\/www.tiingo.com\/blog\/?p=736"},"modified":"2026-08-07T08:45:25","modified_gmt":"2026-08-07T12:45:25","slug":"overnight-stock-data-api","status":"publish","type":"post","link":"https:\/\/www.tiingo.com\/blog\/overnight-stock-data-api\/","title":{"rendered":"Overnight Stock Data API: Real-Time 8pm-4am Prices from Blue Ocean ATS"},"content":{"rendered":"<p>Overnight trading has gone mainstream &#8211; and if you&#8217;ve gone looking for an overnight stock data API to actually see those prices, you&#8217;ve probably discovered the strange part: there barely is one. Over the past three years, 24-hour trading (really 24&#215;5) went from a curiosity to a headline feature at nearly every major retail broker, and billions of dollars in US stocks now change hands while New York sleeps.<\/p>\n<p>Retail can now trade overnight. Getting the overnight data is a different story. Most stock APIs &#8211; including very good ones &#8211; go dark at 8:00pm ET.<\/p>\n<p>We&#8217;ve been making high-end market data accessible and affordable since 2014, and the overnight session is simply the newest place that access gap shows up.<\/p>\n<blockquote>\n<p>The short version: the US overnight session runs 8:00pm-4:00am ET, Sunday through Thursday, and almost all of it trades on Blue Ocean ATS (BOATS). Most retail data APIs stop at 8:00pm ET. Tiingo carries the real-time overnight feed &#8211; 12,000+ US stocks over REST and WebSocket &#8211; at cost, for $9\/month on top of our Power plan.<\/p>\n<\/blockquote>\n<h2>The overnight session, defined: 8pm-4am ET (and why &#8220;after hours&#8221; isn&#8217;t it)<\/h2>\n<p>A US trading day actually has four sessions:<\/p>\n<ul>\n<li><strong>Pre-market:<\/strong> 4:00am-9:30am ET<\/li>\n<li><strong>Regular session:<\/strong> 9:30am-4:00pm ET<\/li>\n<li><strong>Post-market (&#8220;after hours&#8221;):<\/strong> 4:00pm-8:00pm ET<\/li>\n<li><strong>Overnight:<\/strong> 8:00pm-4:00am ET, Sunday through Thursday<\/li>\n<\/ul>\n<p>The part that trips people up: when a data vendor says &#8220;extended hours,&#8221; they almost always mean the first three &#8211; the 4:00am-8:00pm stretch. The overnight session is a different market. It runs on different venues (FINRA-registered alternative trading systems, not the exchanges), with different liquidity and a completely different data supply chain. &#8220;Extended hours&#8221; data will never show it to you, no matter how good the API is.<\/p>\n<p>And one quirk: there is no Friday-night session. Overnight trades report through the NYSE Trade Reporting Facility (TRF) the next morning, and the TRF is closed on Saturdays &#8211; so the week ends at 4:00am ET Friday and picks back up Sunday at 8:00pm ET.<\/p>\n<h2>Why your after hours data API stops at 8pm<\/h2>\n<p>The trading side of this is solved. Robinhood&#8217;s 24-Hour Market, Schwab and thinkorswim&#8217;s 24\/5 trading, Interactive Brokers&#8217; Overnight session, Webull, E*TRADE, Firstrade &#8211; the list of retail brokers offering overnight trading keeps growing. If you have an account at any of them, you can place an order at 2:00am ET tonight.<\/p>\n<p>So the demand is obviously there. The data? That&#8217;s the surprising part.<\/p>\n<p>We went vendor by vendor through the popular retail market data APIs, and the pattern is remarkably consistent. These are good products &#8211; overnight simply isn&#8217;t what they serve. Their documented &#8220;extended hours&#8221; coverage stops at 8:00pm ET. The channels that do carry the overnight session (ICE Data Services, Bloomberg, dxFeed, QUODD) are institutional and enterprise: contact-sales pricing, redistribution agreements, the works. Databento deserves fair credit as the developer-accessible exception, though its live overnight feed sits on a higher tier, above single-digit-dollar plans.<\/p>\n<table>\n<thead>\n<tr>\n<th>Data source<\/th>\n<th>Hours covered<\/th>\n<th>Overnight 8pm-4am?<\/th>\n<th>Delivery<\/th>\n<th>Pricing \/ access<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Polygon.io \/ Massive<\/td>\n<td>4am-8pm ET<\/td>\n<td>No<\/td>\n<td>REST + WebSocket<\/td>\n<td>Self-serve, published<\/td>\n<\/tr>\n<tr>\n<td>Alpha Vantage<\/td>\n<td>4am-8pm ET<\/td>\n<td>No<\/td>\n<td>REST<\/td>\n<td>Self-serve, published<\/td>\n<\/tr>\n<tr>\n<td>EODHD<\/td>\n<td>4am-8pm ET<\/td>\n<td>No<\/td>\n<td>REST + WebSocket<\/td>\n<td>Self-serve, published<\/td>\n<\/tr>\n<tr>\n<td>Financial Modeling Prep<\/td>\n<td>Post-close only<\/td>\n<td>No<\/td>\n<td>REST<\/td>\n<td>Self-serve, published<\/td>\n<\/tr>\n<tr>\n<td>Twelve Data<\/td>\n<td>4am-8pm ET<\/td>\n<td>No<\/td>\n<td>REST + WebSocket<\/td>\n<td>Self-serve, published<\/td>\n<\/tr>\n<tr>\n<td>Alpaca<\/td>\n<td>4am-8pm ET<\/td>\n<td>No<\/td>\n<td>REST + WebSocket<\/td>\n<td>Self-serve, published<\/td>\n<\/tr>\n<tr>\n<td>Databento<\/td>\n<td>Overnight on a higher tier<\/td>\n<td>Yes (higher tier)<\/td>\n<td>REST + streaming<\/td>\n<td>Self-serve, higher tier<\/td>\n<\/tr>\n<tr>\n<td>ICE \/ Bloomberg \/ dxFeed \/ QUODD<\/td>\n<td>Overnight<\/td>\n<td>Yes<\/td>\n<td>Enterprise feeds<\/td>\n<td>Contact sales<\/td>\n<\/tr>\n<tr>\n<td><strong>Tiingo (BOATS)<\/strong><\/td>\n<td><strong>8pm-4am ET<\/strong><\/td>\n<td><strong>Yes<\/strong><\/td>\n<td><strong>REST + WebSocket<\/strong><\/td>\n<td><strong>Self-serve, $9\/mo at cost<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Hours reflect each vendor&#8217;s documented equity coverage as of mid-2026. &#8220;Extended hours&#8221; in most API docs means 4:00am-8:00pm ET &#8211; these are good APIs, the overnight session just isn&#8217;t their focus.<\/em><\/p>\n<p>That&#8217;s the gap. If you want the overnight session as an affordable, self-serve developer API, the options basically run out. (You can see where our row lands in that table &#8211; we&#8217;ll get there.)<\/p>\n<h2>Who runs the overnight market: Blue Ocean ATS, Bruce, and MOON<\/h2>\n<p>Before the how, the where. Overnight trading doesn&#8217;t happen on the NYSE or Nasdaq &#8211; it happens on a small set of FINRA-registered ATSs, all trading the same 8:00pm-4:00am ET window:<\/p>\n<table>\n<thead>\n<tr>\n<th>Venue<\/th>\n<th>Launched<\/th>\n<th>Backer<\/th>\n<th>Session<\/th>\n<th>Disclosed volume (dated)<\/th>\n<th>Overnight share<\/th>\n<th>Data distributed via<\/th>\n<th>Confirmed retail brokers<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Blue Ocean ATS (BOATS)<\/td>\n<td>2021<\/td>\n<td>Blue Ocean Technologies<\/td>\n<td>8pm-4am ET, Sun-Thu<\/td>\n<td>$8.25B notional, one session (Jun 22, 2026)<\/td>\n<td>~83% (Dec 2025)<\/td>\n<td>ICE, Bloomberg, dxFeed, QUODD, Databento, Tiingo<\/td>\n<td>Robinhood, IBKR, Webull, Firstrade<\/td>\n<\/tr>\n<tr>\n<td>Bruce ATS<\/td>\n<td>Mar 2025<\/td>\n<td>PEAK6<\/td>\n<td>8pm-4am ET, Sun-Thu<\/td>\n<td>~$502M\/session (Mar 2026)<\/td>\n<td>Not disclosed<\/td>\n<td>Nasdaq (exclusive)<\/td>\n<td>Not disclosed<\/td>\n<\/tr>\n<tr>\n<td>MOON ATS \/ OTC Overnight<\/td>\n<td>2024<\/td>\n<td>OTC Markets Group<\/td>\n<td>8pm-4am ET, Sun-Thu<\/td>\n<td>Not disclosed<\/td>\n<td>Not disclosed<\/td>\n<td>OTC Markets<\/td>\n<td>moomoo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>Only Blue Ocean&#8217;s ~83% overnight share (December 2025) is publicly disclosed; the other venues report growth and per-session volume, but not share.<\/em><\/p>\n<p><strong>Blue Ocean ATS (BOATS)<\/strong> is the dominant venue, and it isn&#8217;t close. It&#8217;s a FINRA-registered ATS built by Blue Ocean Technologies, launched in 2021, trading NMS securities (stocks, ETFs, ADRs). US broker-dealers subscribe directly and route their clients&#8217; overnight orders in &#8211; Robinhood&#8217;s 24-Hour Market is powered by Blue Ocean, and Interactive Brokers, Webull, and Firstrade route to it too. As of December 2025 it handled ~83% of overnight-session volume, and its liquidity has grown fast: it traded ~$374.7bn in notional across 2025, and on a single overnight session (June 22, 2026) it cleared $8.25B in notional across 4,085 symbols traded. Roughly 75-80% of that flow comes from Asia-Pacific &#8211; for a trader in Tokyo, Singapore, or Hong Kong, the US &#8220;overnight&#8221; session is the middle of the day.<\/p>\n<p>One night tested it hard. During the yen carry-trade unwind overnight on Aug 4-5, 2024, BOATS hit its capacity and had to cancel trades and halt the session. The company had already begun migrating to MEMX&#8217;s exchange-grade technology, completed a major capacity upgrade within weeks, and there hasn&#8217;t been a comparable outage since.<\/p>\n<p><strong>Bruce ATS<\/strong> is the fast-growing #2. Backed by PEAK6 and launched in March 2025, it trades the same 8pm-4am window, with odd-lot transparency as its differentiator. As of March 2026 it was averaging ~$502M in notional per session &#8211; much smaller than Blue Ocean, but growing quickly off that smaller base. Nasdaq exclusively distributes Bruce ATS market data. No market-share figure has been published.<\/p>\n<p><strong>MOON ATS and OTC Overnight<\/strong> come from OTC Markets Group. MOON ATS is the overnight venue for NMS and exchange-listed securities; OTC Overnight is a separate platform for OTC equities and cross-traded global securities. moomoo routes its overnight flow to MOON, not to Blue Ocean.<\/p>\n<p>Beyond Blue Ocean&#8217;s ~83%, the venues don&#8217;t disclose market shares &#8211; so we won&#8217;t invent a split.<\/p>\n<h3>What&#8217;s next: exchanges are coming (and why they&#8217;re not here yet)<\/h3>\n<p>As of mid-2026, there is still no official consolidated tape for the overnight session &#8211; no overnight NBBO at all. The SIPs (the official consolidated tape and national best bid\/offer) only received SEC approval to run overnight on July 7, 2026, with a go-live target of December 6, 2026. Until that switches on, venue-direct ATS data is structurally the only overnight data there is. That&#8217;s a big reason the ATSs, and the few feeds carrying them, got there first.<\/p>\n<p>The exchange horizon:<\/p>\n<ul>\n<li><strong>Nasdaq&#8217;s 23\/5 &#8220;Night Session&#8221;<\/strong> &#8211; SEC-approved in April 2026, running 9:00pm-4:00am ET, but it can&#8217;t start until the overnight SIP is available, so it&#8217;s gated to late 2026, around that December 6 date.<\/li>\n<li><strong>NYSE Arca<\/strong> &#8211; has filed for an overnight session, also 9:00pm-4:00am ET, targeting the same December 6, 2026 industry date, &#8220;subject to SEC approvals, the SIPs, and DTCC&#8217;s modernization.&#8221;<\/li>\n<li><strong>24X National Exchange<\/strong> &#8211; already runs a 4:00am-8:00pm session (live since October 2025) and has applied for an overnight phase running 8pm Sunday to 8pm Friday with a daily one-hour maintenance pause, but that phase is still pending an <a href=\"https:\/\/www.tiingo.com\/blog\/24x-exchange-overnight-trading-sec-exemption\/\">SEC exemption<\/a>.<\/li>\n<li><strong>Clearing is already done<\/strong> &#8211; DTCC&#8217;s NSCC went live with 24&#215;5 clearing on June 28, 2026. That dependency is satisfied.<\/li>\n<\/ul>\n<p>Two truths to hold at once. First, these are targets, and it&#8217;s genuinely unclear whether the dates hold. The whole industry has converged on one contingent date &#8211; December 6, 2026 &#8211; that still depends on the overnight SIP going live and, for 24X, an SEC approval that hasn&#8217;t come. Market-structure rollouts slip; NYSE Arca already stretched its own rule window from 18 to 24 months to line up with that date. The momentum is real (clearing is live, the SIP amendment is approved), but a date that far out, with that many dependencies, can move.<\/p>\n<p>Second, even once they arrive, none of these is a true 24-hour market. Every one is a &#8220;23\/5&#8221; session with a daily one-hour pause &#8211; 8:00pm-9:00pm ET for the Nasdaq\/NYSE\/SIP complex &#8211; to roll the trade date, process corporate actions, and run maintenance. There&#8217;s still a gap hour every night. Continuous round-the-clock trading isn&#8217;t actually on the table.<\/p>\n<p>So as of mid-2026: Blue Ocean clearly leads the overnight session, the exchange alternatives are real but not yet live, and we&#8217;ll keep this post updated as the landscape changes.<\/p>\n<h2>Blue Ocean ATS data, made accessible: an overnight stock data API<\/h2>\n<p>Since 2014, Tiingo has existed to make high-end financial data accessible and affordable &#8211; we&#8217;re the oldest accessible retail market-data API still around, and our motto is &#8220;Actively Do Good.&#8221; We&#8217;ve raised not a dollar of venture funding and we&#8217;ve been profitable for 8+ years, which is exactly why we can price by asking &#8220;how much can we give?&#8221; instead of &#8220;how much can we charge?&#8221; The overnight session is simply the newest place we get to close an access gap.<\/p>\n<p>Our BOATS feed is real-time <a href=\"https:\/\/www.tiingo.com\/blog\/blue-ocean-ats-overnight-stock-data\">Blue Ocean ATS overnight data<\/a>: 12,000+ US equities, top-of-book quotes (bid, ask, and mid), last trade price and size, and overnight intraday OHLC bars. You get it over REST (snapshots plus historical bars) and over a WebSocket firehose that streams every validated quote and trade as it happens. Full details are on the <a href=\"https:\/\/www.tiingo.com\/products\/boats-blue-ocean-ats-real-time-overnight-stock-prices\">product page<\/a> (and if you&#8217;re comparing vendors more broadly, here&#8217;s how we think about the <a href=\"https:\/\/www.tiingo.com\/blog\/best-stock-price-api\">best stock price API<\/a> overall).<\/p>\n<p>The price: $9\/month, at cost. That&#8217;s the $8 Blue Ocean license fee plus $1 of compliance, passed straight through with no markup &#8211; it was important to us that this stay a give, not a take. The add-on sits on top of our $30\/month Power plan, so a brand-new user is all-in at about $39\/month for real-time overnight US stock data. As far as we can find, no other retail-priced, self-serve developer API carries the overnight session.<\/p>\n<p>The real-time Blue Ocean feed can run everywhere, from the Personal-use $9 add-on up through our larger tiered Enterprise and Redistribution contracts. Enterprise is its own product: much higher usage tiers, higher-level support, fully auditable compliance, and separate license agreements that include indemnity, liability protections, and SLAs.<\/p>\n<p>I&#8217;ve always hated the idea that the value of a feed is tied into the price and fought that psychological sales principle hard. The quality of the data is held to one standard for everyone. Which is why we have both large Enterprise customers and high schoolers, all on the same platform (albeit different support, usage, and licensing tiers).<\/p>\n<p>We&#8217;ve made this bet before. Tiingo was the first accessible API to promote and distribute IEX data, back when IEX had roughly 1.4-1.7% market share and wasn&#8217;t even an exchange yet (still an ATS). We connected with and supported a young venue early because making its data accessible was the right thing to do, and IEX went on to become a full stock exchange. Doing the same for Blue Ocean ATS while it&#8217;s the venue democratizing overnight access comes from the same conviction, a decade later. Real-time overnight data existed &#8211; for enterprises and terminals. Now it&#8217;s accessible to all.<\/p>\n<h2>Getting started with the overnight data API<\/h2>\n<p>Three REST endpoints cover the whole thing:<\/p>\n<ul>\n<li><code>api.tiingo.com\/boats<\/code> &#8211; a snapshot of every symbol trading overnight right now<\/li>\n<li><code>api.tiingo.com\/boats\/&lt;ticker&gt;<\/code> &#8211; the latest overnight quote and trade for a single ticker<\/li>\n<li><code>api.tiingo.com\/boats\/&lt;ticker&gt;\/prices<\/code> &#8211; historical intraday bars, restricted to the overnight window<\/li>\n<\/ul>\n<p>A snapshot is one request:<\/p>\n<pre><code>curl -H \"Authorization: Token YOUR_API_KEY\" \\\n  \"https:\/\/api.tiingo.com\/boats\/aapl\"<\/code><\/pre>\n<p>And the WebSocket firehose streams every validated overnight quote and trade:<\/p>\n<pre><code>import json, websocket\n\ndef on_open(ws):\n    ws.send(json.dumps({\n        \"eventName\": \"subscribe\",\n        \"authorization\": \"YOUR_API_KEY\",\n        \"eventData\": {\"thresholdLevel\": 3}\n    }))\n\nws = websocket.WebSocketApp(\n    \"wss:\/\/api.tiingo.com\/boats\",\n    on_open=on_open,\n    on_message=lambda ws, msg: print(msg),\n)\nws.run_forever()<\/code><\/pre>\n<p>Overnight access uses the &#8220;BOATS Real-time&#8221; entitlement on your account &#8211; once it&#8217;s enabled, the endpoints above light up. The full <a href=\"https:\/\/www.tiingo.com\/documentation\/boats\">overnight stock data API documentation<\/a> covers the REST side, and the <a href=\"https:\/\/www.tiingo.com\/documentation\/websockets\/boats\">WebSocket docs<\/a> cover streaming.<\/p>\n<h2>FAQ<\/h2>\n<h3>What time does the overnight stock session run?<\/h3>\n<p>8:00pm-4:00am ET, Sunday night through Thursday night. All of the overnight ATS venues (Blue Ocean, Bruce, MOON) trade this same window.<\/p>\n<h3>Is overnight the same as after-hours?<\/h3>\n<p>No. After-hours (post-market) trading is 4:00pm-8:00pm ET. The overnight session is 8:00pm-4:00am ET, and it trades on different venues &#8211; the ATSs &#8211; with a different data supply chain. Most APIs&#8217; &#8220;extended hours&#8221; coverage means 4:00am-8:00pm only.<\/p>\n<h3>Why is there no Friday-night session?<\/h3>\n<p>Overnight trades report through the NYSE Trade Reporting Facility (TRF) the next morning, and the TRF is closed on Saturdays. The trading week ends at 4:00am ET Friday and resumes Sunday at 8:00pm ET.<\/p>\n<h2>The bottom line<\/h2>\n<p>Retail overnight trading is solved &#8211; the brokers got there. The data was the missing piece, and that&#8217;s the piece we&#8217;ve made accessible: real-time Blue Ocean ATS prices on 12,000+ US stocks, over REST and WebSocket, for $9\/month at cost. Making high-end data accessible is why Tiingo exists, and this is what &#8220;Actively Do Good&#8221; looks like in practice: find the gap between institutions and everyone else, and close it. If you build something on the overnight session (a dashboard, an alerting bot, an APAC-hours strategy), we&#8217;d love to hear about it &#8211; and if you want to start tonight at 8:00pm ET, the <a href=\"https:\/\/www.tiingo.com\/products\/boats-blue-ocean-ats-real-time-overnight-stock-prices\">BOATS overnight data add-on<\/a> is live right now.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overnight trading has gone mainstream &#8211; and if you&#8217;ve gone looking for an overnight stock data API to actually see those prices, you&#8217;ve probably discovered the strange part: there barely is one. Over the past three years, 24-hour trading (really 24&#215;5) went from a curiosity to a headline feature at nearly every major retail broker, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":737,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"osom_blocks_metabox":"","inline_featured_image":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-736","post","type-post","status-publish","format-standard","has-post-thumbnail","category-market-data","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Overnight Stock Data API: Blue Ocean ATS Prices | Tiingo<\/title>\n<meta name=\"description\" content=\"Most stock APIs stop at 8pm ET. Tiingo makes real-time overnight stock data accessible: 12,000+ US stocks on Blue Ocean ATS, 8pm-4am, $9\/month at cost.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.tiingo.com\/blog\/overnight-stock-data-api\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Overnight Stock Data API: Real-Time 8pm-4am Prices from Blue Ocean ATS\" \/>\n<meta property=\"og:description\" content=\"Most stock APIs stop at 8pm ET. Tiingo makes real-time overnight stock data accessible: 12,000+ US stocks on Blue Ocean ATS, 8pm-4am, $9\/month at cost.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tiingo.com\/blog\/overnight-stock-data-api\/\" \/>\n<meta property=\"og:site_name\" content=\"Tiingo Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/tiingofinance\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-24T02:48:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-07T12:45:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tiingo.com\/blog\/wp-content\/uploads\/2026\/07\/hero-overnight.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Rishi S.\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@tiingofinance\" \/>\n<meta name=\"twitter:site\" content=\"@tiingofinance\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rishi S.\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/\"},\"author\":{\"name\":\"Rishi S.\",\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/#\\\/schema\\\/person\\\/54fc93e1626ed221a37fcfddb597c3d6\"},\"headline\":\"Overnight Stock Data API: Real-Time 8pm-4am Prices from Blue Ocean ATS\",\"datePublished\":\"2026-07-24T02:48:20+00:00\",\"dateModified\":\"2026-08-07T12:45:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/\"},\"wordCount\":2321,\"publisher\":{\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/hero-overnight.png\",\"articleSection\":[\"Market Data\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/\",\"url\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/\",\"name\":\"Overnight Stock Data API: Blue Ocean ATS Prices | Tiingo\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/overnight-stock-data-api\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.tiingo.com\\\/blog\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/hero-overnight.png\",\"datePublished\":\"2026-07-24T02:48:20+00:00\",\"dateModified\":\"2026-08-07T12:45:25+00:00\",\"description\":\"Most stock APIs stop at 8pm ET. 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