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Andy Reimann @stockfitapi

Audit-grade fundamentals API for AI agents and quants. SEC EDGAR sourced. developer.stockfit.io

Joined April 2026
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Andy Reimann
@stockfitapi
Apr 28
$MSFT economic model from our API - Generated end-to-end from SEC filings with an audit trail. With StockFit API, your AI Workflows will get supercharged with real and tangible business information! All structured in JSON. THIS will make your AI stop hallucinating!
MSFT business information from StockFit API visualized as an infographic showing main offerings, unit economics, and cost structure highlights.

ALT MSFT business information from StockFit API visualized as an infographic showing main offerings, unit economics, and cost structure highlights.

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Your brokerage shows you an ETF's name, expense ratio, and a top-10 list. The SEC makes the issuer file the entire portfolio every quarter (N-PORT) and an operational census every year (N-CEN). We parsed both for $SPY and $VOO. What your fund card hides 🧵 #ETFs
A dark, blue-accented hero. A glass magnifying lens hovers over a card labeled SPY ETF FACT SHEET, revealing faint rows labeled HOLDINGS, DOMICILE, and TRACKING ERROR beneath it. Pills read $SPY, $VOO, N-PORT, N-CEN. Headline: What your ETF fact-sheet hides, with fact-sheet in blue. Subhead: SPY and VOO, from SEC N-PORT and N-CEN filings. StockFit API wordmark bottom-left, developer.stockfit.io bottom-right.

ALT A dark, blue-accented hero. A glass magnifying lens hovers over a card labeled SPY ETF FACT SHEET, revealing faint rows labeled HOLDINGS, DOMICILE, and TRACKING ERROR beneath it. Pills read $SPY, $VOO, N-PORT, N-CEN. Headline: What your ETF fact-sheet hides, with fact-sheet in blue. Subhead: SPY and VOO, from SEC N-PORT and N-CEN filings. StockFit API wordmark bottom-left, developer.stockfit.io bottom-right.

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Every number here is parsed from an SEC N-PORT or N-CEN filing and traces back to EDGAR. No third-party data vendor in the path. Full walkthrough of all 14 fund endpoints, free-tier profile to forensic analysis: developer.stockfit.io/blog/e… Not financial advice.

A Deep Lens on Any ETF: From Free-Tier Profile to Forensic Analysis — StockFit Developer Blog

Walk SPY end-to-end with the StockFit fund endpoints. Start with /profile and /holdings on the entry tiers, then move into the N-PORT and N-CEN power tools (flows, changes, overlap, fund health, fee...

developer.stockfit.io
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4/ Flip the lens: which funds hold $NVDA? 2,042 of them across the SEC universe. VTI, VOO, FXAIX, IVV, SPY at the top, NVDA is ~6-8% of each. If you hold a few "diversified" index funds, you may own more NVIDIA than you think.
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3/ $SPY vs $VOO, the two funds everyone treats as identical: 476 holdings shared 27 unique to SPY, 30 unique to VOO ~97% overlap by weight That ~3% sliver is the whole thing you're choosing between. Computed per-CUSIP off raw N-PORT, not guessed from sector charts.
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2/ $SPY is the "US large-cap" fund. By issuer domicile it's ~97% US. The other ~3% registers in Ireland, Switzerland, Bermuda, the Netherlands (Accenture, Aon, Linde...). Most fact-sheets round that to "US." The N-PORT doesn't.
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1/ $VOO vs the S&P 500 in 2025, straight from Form N-CEN: Gross of fees: trailed the index by 0.4 bps. Net of fees: 16.9 bps. Gross, it's a near-perfect mirror. The slippage is almost all on the cost side, not replication. That decomposition is on no fact-sheet.
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"Who are this company's peers?" is one of the most common questions in equity research, and one of the worst-served by data APIs. Most providers have no peers endpoint at all. The one that does returns a bare list of tickers: no revenue, no ranking, often empty. So we built a good one. Ask for $NVDA and you get the chip complex ranked by revenue scale, each peer carrying its revenue and reporting currency. The names an analyst would actually reach for, in one call. $AVGO $INTC $AMD $MU $TSM /api/company/peers, live now: developer.stockfit.io/blog/c…
A dark, blue-accented leaderboard titled "NVDA peers, ranked by revenue." A highlighted header row shows NVDA at 215.9B, followed by six ranked peer rows in monospace: TSM Taiwan Semiconductor 121.4B, AVGO Broadcom 63.9B, INTC Intel 52.9B, MU Micron 37.4B, AMD Advanced Micro Devices 34.6B, ASX ASE Technology 20.6B. StockFit API wordmark bottom-left, developer.stockfit.io bottom-right.

ALT A dark, blue-accented leaderboard titled "NVDA peers, ranked by revenue." A highlighted header row shows NVDA at 215.9B, followed by six ranked peer rows in monospace: TSM Taiwan Semiconductor 121.4B, AVGO Broadcom 63.9B, INTC Intel 52.9B, MU Micron 37.4B, AMD Advanced Micro Devices 34.6B, ASX ASE Technology 20.6B. StockFit API wordmark bottom-left, developer.stockfit.io bottom-right.
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Where does $AAPL revenue actually come from? FY2025, parsed straight from the 10-K XBRL: • iPhone: $209.6B • Services: $109.2B • Mac: $33.7B • iPad: $28.0B By geography: US $151.8B · China $64.4B One API call returns the full product geography split. developer.stockfit.io/blog/r…
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This API gives you executive officers for any company, including divisional CEOs like "CEO Amazon Web Services). developer.stockfit.io/blog/e…

Executive Officers API and Executives API: A Developer Guide — StockFit Developer Blog

Get a company's current CEO and executive officers, with titles, from an API. How the StockFit Executive Officers API is built from SEC Form 3/4/5 insider filings, with real examples.

developer.stockfit.io
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Want high quality company peers as an API? StockFit API tracks 200 industries and gives you just that. developer.stockfit.io/blog/c…

Company Peers API: Comparable Companies, Ranked, Done Right — StockFit Developer Blog

Most financial data APIs have no company peers endpoint, and the one that does returns a flat, often-empty ticker list. The StockFit Company Peers API returns up to 6 same-industry comparables,...

developer.stockfit.io
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Asked our new API "who competes with $NVDA ?" One call → $TSM, $AVGO, $INTC, $MU, $AMD, $ASX. Ranked by revenue, each with its own numbers. No GICS license, no SIC grab-bag. Just clean peers from SEC data. developer.stockfit.io/blog/c…

Company Peers API: Comparable Companies, Ranked, Done Right — StockFit Developer Blog

Most financial data APIs have no company peers endpoint, and the one that does returns a flat, often-empty ticker list. The StockFit Company Peers API returns up to 6 same-industry comparables,...

developer.stockfit.io
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Financial APIs are BRUTALLY expensive for indie app devs! Spent a year building StockFit API EXACTLY because of this. If you are budget constraint but need Stock/ETF Data, this one is for YOU! Generous free tier available. developer.stockfit.io

StockFit - Fundamentals API, just better

SEC filings API with structured financials, earnings, ETF holdings, and IPO prospectus data. REST MCP. Free tier, no credit card.

developer.stockfit.io
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x.com/i/article/205028488861…

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developer.stockfit.io/

StockFit - Fundamentals API, just better

SEC filings API with structured financials, earnings, ETF holdings, and IPO prospectus data. REST MCP. Free tier, no credit card.

developer.stockfit.io
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finance is the most expensive niche on earth to acquire customers in. avg cpc on "financial api" keywords is $15 . so i'm not running ads. im building in public. day 1: i ship the only fundamentals api that gives you the amendment trail per fact for real transparency. free tier. roast it.
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developer.stockfit.io/

StockFit - Fundamentals API, just better

SEC filings API with structured financials, earnings, ETF holdings, and IPO prospectus data. REST MCP. Free tier, no credit card.

developer.stockfit.io
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solo founder. bootstrapped. no vc. just shipped a financial api with something no other api has: a per-fact, per-amendment audit trail. if a company filed 391B revenue and restated to 391.2B 3 months later, my api returns both, with the dates. free tier. live now.
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developer.stockfit.io/

StockFit - Fundamentals API, just better

SEC filings API with structured financials, earnings, ETF holdings, and IPO prospectus data. REST MCP. Free tier, no credit card.

developer.stockfit.io
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Andy Reimann retweeted
Andy Reimann
@stockfitapi
May 1
your backtest is lying to you. when a 10-K gets amended a month later, most fundamentals apis silently overwrite the original number. your sim now trades on corrected revenue weeks before the market saw it. i found one that ships the audit trail per fact, with the before value on every restatement. it's free.
For backtesting, knowing when an original value like revenue changed due to amendments or restatements and to which value is crucial.

ALT For backtesting, knowing when an original value like revenue changed due to amendments or restatements and to which value is crucial.
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