A Polygon.io Alternative for Point-in-Time Fundamentals
If you searched "Polygon alternative" for fundamentals specifically, the odds are you already have Polygon for market data and hit its edge on the financials side — either the depth you wanted was not there, or you could not tell what was knowable on a historical date.
Being straight about it: Polygon is a strong market-data provider and this page is not arguing otherwise. If you are using it for aggregates, trades, quotes or options, keep going — we do not offer any of that. This is about one narrow slice.
We build Tradevo Data: point-in-time US equity fundamentals from SEC EDGAR, one JSON endpoint, $49/mo.
What each is for
Polygon.io is a market-data platform: real-time and historical aggregates, trades, quotes, options, forex and crypto, with a financials endpoint sourced from SEC filings alongside it. The centre of gravity is price and microstructure data, and it is good at that.
Tradevo Data does one thing: annual US fundamentals where every value carries the date it first became public, the figure as originally filed, and the figure as it reads today. 5,202 US companies, 313,537 point-in-time rows, 7 concepts, up to 12 fiscal years, annual 10-K only.
The distinction that matters
A filing date on a record is not the same as point-in-time data, and this is where most comparisons go wrong.
Most providers store one mutable value per period alongside a filing date. When a company restates, that value is updated in place. The date field still says when the original filing happened, but the number next to it is the current one. So a backtest can filter correctly on the filing date and still read a figure that was revised years later.
Point-in-time means keeping both. We ship original_value (what the market actually saw), latest_value (what is true now), and a restated flag — 18,717 of them labelled across the dataset.
Three cases that make it concrete:
- P&G FY2015 revenue — filed at $76.279B, reads $70.749B today. A 7% move on a line item any value screen ranks on.
- General Mills FY2024 — the filer tags $2.038B under
Revenuesand $19.857B underRevenueFromContractWithCustomerExcludingAssessedTaxin the same 10-K. Pick the wrong element and you are off by 10×. (We shipped that error ourselves and now verify every load against SEC's own API.) - Amazon FY2020 diluted shares — 510,000,000 as filed, 10,198,000,000 today, because the 2022 split is applied backwards. Filing-date filtering does not help: the date is right and the denominator changed.
Side-by-side
| Tradevo Data | Polygon.io | |
|---|---|---|
| Prices, trades, quotes, options | Not offered | Core product — its real strength |
| Fundamentals source | SEC EDGAR direct | SEC filings |
| Value as originally reported | Yes — original_value |
Not exposed as a separate field |
| Restatement flag | Yes — 18,717 labelled | Not exposed |
Server-side as_of |
Yes — one parameter does the join | You filter dates yourself |
| Per-row quality flags | Yes — qa_status, never silently dropped |
Not exposed |
| Coverage | 5,202 US, annual only | Broad, multi-asset |
| Price | $49/mo flat | Tiered — see their pricing |
| Free verifiable sample | 40 co, 3,280 rows, CC0, no signup | Free tier available |
Polygon's plans and endpoints change; verify current specifics on their own pricing and docs pages rather than trusting our summary of someone else's product.
When Polygon is the better choice
- You need market data. Prices, trades, quotes, options — we have none of it. This is not a close call.
- You need one vendor for everything. A single bill and a single SDK has real operational value, and splitting fundamentals out is a genuine cost.
- You need real-time. We are an annual fundamentals dataset; nothing here is live.
- You need quarterly. We are annual 10-K only today.
When we fit
You already have market data you are happy with, and you want the fundamentals half to be defensible — one call that returns only what was knowable on a date, with revisions visible instead of overwritten. That is a common shape: keep Polygon for prices, add us for the accounting side, and the point-in-time join stops being your bug to write.
Verify before paying
Free sample — 40 large caps, 3,280 point-in-time rows, full methodology, CC0, no signup: github.com/christianpichichero-max/pit-fundamentals
Pull the same companies from whatever you use now and diff them. If the differences do not matter for your strategy, do not buy anything — that is a legitimate outcome and we would rather you reach it with our data in hand.
The $49/mo API issues a key instantly and cancels anytime.
Not investment advice. Polygon.io is an independent company and is not affiliated with us; its coverage, pricing and endpoints change — verify current terms on their own pages. Tradevo Data figures stated as of August 2026.