SHEET P-04 — DATA SOURCES
Every score, probability and chart on GiottoO traces back to a named source. This page lists exactly what we ingest, where it comes from, and — just as important — which feeds are real-time and which are delayed.
Educational research only. Not financial advice.
What's inside
Market prices
Equity and ETF quotes and bars powering charts, scanners and trade analysis.
Options chains
Full chains with strikes, expirations, bid/ask, volume and open interest.
Greeks
Delta, gamma, theta, vega and rho computed per contract from chain snapshots.
Implied volatility
Per-contract and per-ticker IV, IV rank and percentile against trailing history.
Historical volatility
Realized vol over multiple windows — the denominator in every IV/HV richness check.
News
Ticker-tagged headlines aggregated from public feeds across global sources.
Earnings
Earnings calendars, report timing and historical results for event-risk awareness.
Macro events
Rate decisions, CPI, employment and other releases that set the vol regime.
Analyst ratings
Consensus estimates and revision trends as fundamental context.
Economic calendar
Scheduled releases with timing, so event risk is visible before entry.
SEC filings
10-K, 10-Q, 8-K and other filings straight from EDGAR.
Insider transactions
Form 4 buys and sells by officers and directors — post-filing, public record.
Institutional holdings
13F positioning of large managers, quarterly and lagged by design.
The current stack
| Source | What it provides | Nature |
|---|---|---|
| Alpaca | Market prices, options chains, quotes | Commercial market data API |
| SEC EDGAR | Filings, insider transactions, institutional holdings | Official regulatory source (free, public) |
| FRED (St. Louis Fed) | Macro data: rates, inflation, employment | Official statistical source (free, public) |
| EIA | Energy data: crude, natural gas, inventories | Official statistical source (free, public) |
| Finnhub / Alpha Vantage | Fundamentals, earnings calendars, estimates | Commercial data APIs, cross-checked |
| Public RSS feeds | News headlines across global sources | Public feeds, ticker-tagged in-house |
Delayed data disclosure
Not everything on GiottoO is real-time, and we would rather say so plainly than let you assume otherwise. Here is how each layer of the stack behaves:
If a decision depends on up-to-the-second data, confirm against your broker's live feed. Research platforms — including this one — are for analysis, not execution timing.
What each plan unlocks
Family offices · funds · desks
Request Institutional Access.
Analyst seats, API access, portfolio Greeks, correlation matrices, white-label research portals, compliance exports and custom risk rules.
Data is provided for educational research only and may be delayed, revised or incomplete. Nothing on this page is financial advice.
Source availability and refresh rates change; this page describes the current architecture, not a service guarantee outside enterprise agreements.