SEC filings API: get a company's filings by CIK with accession numbers and dates
Get a company's SEC filings by CIK via API: 10-K, 10-Q, and 8-K lists with accession numbers, filing dates, and form types. No EDGAR scraper to maintain.
The SiftingIO Blog
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Engineering deep-dives, market analysis, and product updates from the SiftingIO team. How we build real-time market data infrastructure across crypto, FX, and equities.
Latest posts
Token vesting fair market value: what is a token worth the minute it vests?
Under IRC section 83, vested tokens are income at fair market value. Why one venue's last trade is weak, and how a cross-venue weighted median holds up.
What is a pip in forex? Pip size, fractional pips, and pip value math for EURUSD and USDTRY
What a pip is in forex: pip size for four-decimal and JPY pairs, fractional pips, and step-by-step pip value math for EURUSD and USDTRY from live quotes.
Base currency vs quote currency: how to read a forex pair like EURUSD
What base and quote currency mean, why it's EURUSD and never USDEUR, direct vs indirect quoting, and how to read any FX price. With live API examples.
What timezone is market data in? UTC timestamps, DST pitfalls, and session times explained
Market data timestamps are UTC: epoch ms ticks, RFC 3339 bars, date-only filings. How to handle DST, weekend boundaries, and convert correctly in Python and JS.
When does a daily candle open and close? Daily bar boundaries in stocks, forex, and crypto
When a daily candle opens and closes in US stocks, forex, and crypto, why weekend gaps exist, and why two providers' daily bars can legitimately differ.
Natural gas price API: what NATGAS measures, MMBtu explained, and a unit conversion table
Natural gas price API guide: what NATGAS measures, how MMBtu converts to therms, kWh, and GJ, plus code for historical bars and live spot prices.
What is a lot in forex? Standard, mini, and micro lot sizes with position value math
What a lot means in forex: standard, mini, micro, and nano lot sizes in one table, plus position value and pip value math computed from a live EURUSD quote.
Pre-market, regular hours, and after-hours: what US stock data exists in each session
Pre-market, regular hours, and after-hours US stock sessions with times in ET and UTC, what data exists in each, and how an app should handle the boundaries.