/data

The data behind every test

A strategy is only as honest as the data it's tested on. Here's the full, audited dataset every YCAI result runs against — cleaned, deduplicated, session-aligned, and refreshed nightly. No cherry-picked windows, no missing crashes: the whole record, warts and all.

800M+
1-minute bars, all stores
92.4M
option bars — all with open interest
~570
instruments tracked
26 yrs
daily history, back to 1996

What we test on

Instrument groupCoverage (1-minute unless noted)
NIFTY, BANKNIFTY, India VIX — spot2015 → today · incl. Muhurat sessions
19 sector & breadth indices2015 / 2020 / 2023 vintages → today
NIFTY & BANKNIFTY futures — real volume2020 → Oct 2024 · + May 2026 → today
Gold, Silver, Copper, Crude, Nat-gas — global, roll-adjusted2013 → today
BTC, ETH, BNB, SOL — Binance, UTC2017 / 2020 → today
531 NSE stocks — real volume2015 → Apr 2026 · auto-extending to live
GOLDM, SILVERM — front-month futureslate 2025 → today
NIFTY & BANKNIFTY full option chains — with open interestevery session 2020 → Oct 2024 · + NIFTY Mar–Jun 2026
Daily histories — the deep feed layerstocks → 1996 · indices → 2007 · commodities 26 yrs

Every intraday series is stored at 1, 5, 15, 30 & 60-minute resolution, cleaned (session filter, dedupe, OHLC-sanity) and audited for gaps. Futures & options carry real traded volume; index options carry open interest on every strike.

The stores

clean_market.db · 79 GB
The audited 1-min store — spot, futures, commodities, crypto & 531 stocks, at five timeframes.
options_history.db · 18 GB
92.4 M option minute-bars, every one carrying open interest — full NIFTY & BANKNIFTY chains.
market_data_daily.db · 5.1 GB
The deep daily feed — stocks to 1996, indices to 2007, 26 years of global commodities.

The one honest gap

The only market data we don't have is NSE futures & options minute-bars from Nov 2024 to early 2026 — a window sold only by paid vendors, and one we flag in every audit rather than paper over. Everything else here was built from public and self-collected sources, cleaned in-house. We'd rather show you the hole than hide it.

All figures are historical market data used solely for educational back-testing, shown with a ≥3-month lag. Bar counts are live store sizes and grow nightly. Education, not advice · simulations / paper.

See what all this data did to 195 strategies →