About
What emaindicator.com is.
A data-first research site for traders who use exponential moving averages on Indian indices. Built around the idea that crossovers are only useful when you know the regime they fire in — so we publish regime classification, whipsaw counts, multi-timeframe alignment, and 5-year backtests alongside every signal.
What we track
- NIFTY 50 and BANK NIFTY
- 4 timeframes: 5-minute, 15-minute, 1-hour, daily
- 5 EMA pairs: 9/21, 9/26, 12/26, 20/50, 50/200
- 1 SMA pair: 50/200 (the textbook Golden / Death Cross)
- Live regime classification on 1-hour and daily
- 30-day whipsaw counts for 5m and 15m crossovers
- Multi-timeframe alignment across all 4 timeframes simultaneously
How the data flows
- OHLCV from Yahoo Finance's chart API every 5 minutes
- 5 years of daily history pre-loaded; rolling tops up
- All computation persisted to a Postgres database — every refresh writes a snapshot
- Backtests recomputed nightly at 00:30 IST
- JSON snapshot endpoint at
/api/v1/snapshot.jsonfor partner integrations - All times displayed in IST; stored in UTC
Open methodology
Every formula, parameter, and backtest result is published. There's no proprietary signal under a paywall — the classifier rules, EMA spans, whipsaw definition, and all forward-return statistics are documented in plain English on the methodology page. If we change a parameter we say so.
The methodology page also publishes the t-statistics from the 5-year backtest of the regime classifier — including the cases where the t-stat is below the conventional significance threshold. We'd rather show honest numbers than promise edges that don't exist. If a reader concludes from the data that a particular signal isn't tradeable, that's a useful conclusion.
What this site is not
- Not a tipping service. We do not publish "buy now" calls.
- Not investment advice. Use the data to inform your own research, not as a substitute for it.
- Not a broker or exchange. We don't accept orders, hold funds, or route trades.
- Not real-time tick data. The 5-minute refresh cadence is plenty for regime work; intraday scalpers should use a tick feed.
Refresh schedule and data quality
The live snapshot recomputes every 5 minutes during market hours and continues to refresh outside hours. Yahoo's chart API is occasionally rate-limited from data-centre IPs; when that happens the site shows the last known snapshot with a "data temporarily unavailable" note rather than a broken page.
The 5-year history backfill happens once on first start. After that, every 5-min refresh upserts the latest bars into the database. There is no separate "live" feed and "historical" archive — the same Postgres rows back every page on the site.
Disclaimer
Educational and research use only. Nothing on emaindicator.com is investment advice, and past performance of any moving-average strategy does not guarantee future results. EMA and SMA crossovers fail frequently in ranging markets — the whipsaw counter on every page exists precisely to make that visible. Trade at your own risk and use a stop loss.
Get in touch
Corrections, data questions, partnership: /contact/