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SEC EDGAR Data vs Yahoo Finance Chart

Same instrument, two spec sheets — measured, not claimed.

APISEC EDGAR DataHEALTHY99Yahoo Finance ChartHEALTHY99
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms119167
P95 · ms755407
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licensePublic domain (U.S. government work)Unverified
Free tierFree — public government dataFree — limits not published
Rate limitMax 10 requests/second; descriptive User-Agent required (SEC fair-access policy)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

SEC EDGAR Data vs Yahoo Finance Chart: common questions

Which is more reliable, SEC EDGAR Data or Yahoo Finance Chart?

Both are neck-and-neck — SEC EDGAR Data and Yahoo Finance Chart each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, SEC EDGAR Data or Yahoo Finance Chart?

SEC EDGAR Data has the lower median latency in our checks — SEC EDGAR Data responds in 119 ms versus Yahoo Finance Chart at 167 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do SEC EDGAR Data and Yahoo Finance Chart need an API key?

Neither needs a paid key — SEC EDGAR Data is callable with no signup, and Yahoo Finance Chart is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call SEC EDGAR Data and Yahoo Finance Chart from the browser?

Only SEC EDGAR Data is browser-friendly — it returns CORS headers over HTTPS. Yahoo Finance Chart needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are SEC EDGAR Data and Yahoo Finance Chart free for commercial use?

SEC EDGAR Data allows commercial use on its free tier, and Yahoo Finance Chart has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.