DATA TRANSPARENCY
Data sources
The providers that power GiottoO, and whether each is currently live or serving clearly-labeled sample data. GiottoO only displays data available through public, licensed, or user-authorized sources — availability, delay, and accuracy depend on provider access.
Market data
Finnhub
Real-time stock/ETF/index quotes + earnings dates
Polygon.io
Equity/ETF aggregates + option snapshots (IV, IV-rank, HV)
Options plan active — option snapshots (IV/HV) live.
Tradier
Option chains w/ greeks + underlying quotes (2nd live options source)
Sandbox delivers free delayed data.
Tiingo
Index / broad quotes
Options flow
Polygon-derived flow
Smart Money Flow — unusual options activity derived from your Polygon options snapshots (no extra vendor)
Options plan active — live. Day-notional + volume-vs-OI ranking; trade side / sweep / dark-pool need a trade-level vendor.
Unusual Whales (optional upgrade)
Trade-level flow with sweep/block/dark-pool + execution side
Optional paid upgrade over Polygon-derived flow. Also set OPTIONS_FLOW_PROVIDER=unusual_whales.
Dark pool feed
SMF dark-pool / block-trade confirmation
Fundamentals & calendars (FMP)
Earnings calendar
Earnings Center, earnings-move previews
Macro economic calendar
Macro events (CPI, NFP, FOMC…) with consensus + prior
⚠ Paid FMP tier (free tier returns 402 on the economic calendar).
ETF holdings & sectors
ETF profiles: holdings, concentration, sector exposure
⚠ Paid FMP tier (free tier returns 404 on ETF holdings).
Analyst ratings
Upgrades / downgrades / initiations
Macro
FRED
VIX, broad dollar, Treasury series
BLS / BEA / US Treasury
Labor, GDP, and fiscal series
News
RSS wires (~70 feeds)
Headline flow across markets
NewsAPI
Breaking market headlines
Benzinga
Benzinga news feed
Marketaux
Ticker-tagged news + sentiment
SEC filings
SEC EDGAR
Recent 8-K / Form 4 / 13D / 10-Q filings
Keyless — needs only a descriptive User-Agent string.
Crypto
CoinGecko
Crypto spot prices
Keyless; a Pro key raises rate limits.
CoinMarketCap
Alternate crypto source
Commodities
EIA
Energy commodity data (partial — metals/ag pending)
Metals / agriculture
Metals + ag prices
Advanced (pending adapter)
Alpaca (volatility)
Volatility provider
Kalshi (event markets)
Event-contract markets
Blocked pending terms.
Coinglass / CME
Crypto derivatives / futures curve
Educational market intelligence only. Sample data is always clearly labeled and never presented as a live quote. Market data may be delayed, incomplete, or inaccurate. See our methodology and risk disclosure.