India's first stock scoring platform
Sigma Scanner scores Indian stocks against the rules you define, backtests your portfolio across real market history, and helps you invest systematically.
No tips. No fund manager. No guessing.
No card required Cancel anytime We never recommend stocks
Featured In
Illustrative output from a backtested strategy on historical NSE data. Not a recommendation to buy or sell any security. Backtested results are hypothetical and do not represent actual trading. Past performance does not guarantee future results.
See how it worksIn short: Sigma Scanner is a rule-based stock scoring and backtesting platform for the Indian equity market. You define the rules, it scores every stock in the NIFTY 500 against them, tests the resulting portfolio across 10+ years of NSE data, and places the trades through your broker. It is built for self-directed investors who want a repeatable process instead of tips. It never recommends stocks.
That is a compliance position, not a marketing one: Greensigma is not a SEBI-registered Investment Adviser or Research Analyst. Sigma Scanner ranks stocks only against rules you define, and every investment decision remains yours.
10+
Years of NSE data
11
Modules, one method
500
NIFTY 500 covered
7-day
Free trial, no card
Who it's for
Sigma Scanner is built for self-directed investors in India who already invest in equities and want a documented, repeatable process behind each decision. It suits you if you want to define your own rules, see how they would have performed before committing capital, and rebalance on a fixed schedule rather than on impulse. It is used for position-based investing on a weekly-to-monthly rebalance cycle — not for intraday speculation, and not as a substitute for a SEBI-registered adviser. If you want someone to tell you which stock to buy, this is the wrong product.
The platform
Most scanners give you a filter. Sigma Scanner gives you the whole loop — score, test, invest, rebalance, and repeat.
14 factors. You choose the weights — this is one saved setup of many.
Every return on this page ships with its drawdown. No exceptions.
Swap suggestions on your schedule — weekly to yearly, never automatic.
Illustrative. Compare a lump sum against a SIP before you decide.
Illustrative figures from the product. Not a recommendation. Past performance does not guarantee future results.
Capabilities
A screener filters. Sigma Scanner scores, ranks, tests against a decade of history, and then places the trades.
Weight momentum, volatility, volume, returns over any lookback and eleven other factors however you like. The score is yours; we only compute it.
Drag any factor to reweight it in the app
Hold fifteen names, not one conviction. The engine spreads capital across the ranked set the way a fund manager would, so a single bad quarter in a single stock never decides your year.
Momentum stops working in a falling market. The regime filter watches the index against its own trend and moves the book to cash before a drawdown becomes a hole you spend two years climbing out of.
Every rule you write is run against real NSE history back to 2015 — with slippage and brokerage applied. You see the CAGR, the drawdown, the win rate and every losing month before you commit a rupee.
Weekly, monthly, quarterly or yearly. The engine re-scores the universe, tells you exactly which holdings have weakened and which have earned their place, and hands you the switch.
The whole basket goes to your broker as a single instruction. No copying tickers into a terminal, no fifteen separate orders, no fat fingers at 9:15.
The difference
Same market. Same stocks. A completely different process behind every decision.
Radar chart comparing manual stock screening against Sigma Scanner across six measures — speed, automation, AI, accuracy, reliability and professional trading process. Sigma Scanner scores far higher on every axis; see the list below for the specific comparison behind each one.
The evidence
Year by year
Backtest period: 2019 to 2026, measured against the NIFTY 500 benchmark. Illustrative figures from the product — the same backtest referenced in §4. Backtested results are hypothetical and do not represent actual trading. Past performance does not guarantee future results.
From our users
It is the best I have seen in my 5 years in the stock market. The backtest results were excellent and it captured multibaggers I then validated by hand.
The only way to make a decent return in a logical way. Full control over my portfolio without depending on mutual fund or smallcase managers.
Momentum score-based logic is very reliable, and we don't have to go through stock details to find good stocks. Drawdown-arresting mechanisms help restrict any loss.
Though the Nifty went down drastically, the stocks picked did not move much into the negative. Better than an FD.
A scientific way of approaching investment for people with jobs and businesses. Tension free.
A community that provides value like no other. The momentum strategy is backed by rigorous backtesting and I witnessed its potential myself.
Decent return, better than an FD. Thanks for bringing it to the common man.
A community that provides value like no other, focused on adding value to members rather than making money out of them.
Tension free — it saves the time I used to spend searching for stocks.
It is the best I have seen in my 5 years in the stock market. The backtest results were excellent and it captured multibaggers I then validated by hand.
The only platform to backtest a portfolio before going live.
Based on our needs we can choose an aggressive or moderate portfolio.
Questions
Sigma Scanner is a rule-based stock scoring and backtesting platform for the Indian equity market, built by Greensigma Consultancy Private Limited. It helps investors build, backtest and manage systematic investment strategies using predefined rules instead of emotions or guesswork. You can create custom scoring strategies, rank NSE- and BSE-listed stocks against factors you choose, test that strategy across 10+ years of historical data, and build disciplined portfolios from the result. Sigma Scanner never recommends stocks — it ranks them against your rules, and you decide.
Sigma Scanner works in five steps:
You can start from a pre-built Ready Strategy and change one factor at a time to see how it affects the ten-year result.
No. Start with a Ready Strategy — pre-built, already backtested, results visible before you commit to anything. When you want to change something, change one factor and watch what it does to the ten-year result. That is how most users learn quant investing here: by testing, not by studying.
Indian equities and ETFs — NSE and BSE listed instruments, across the NIFTY 500, MIDSMALLCAP 400, MICROCAP 250 and other standard universes. US equity coverage is on the roadmap. Sigma Scanner does not cover forex, commodities, or mutual funds.
Yes. The trial runs seven days and needs no card. After that you can cancel from your account at any time; you keep access until the end of the period you have paid for.
Sigma Scanner integrates with leading Indian brokers so an entire portfolio can be placed as a single instruction. You approve every order before it goes to the exchange — we never place a trade on your behalf without that approval.
Every figure on this page comes from a backtest run in the product, on real NSE data, with its parameters published alongside it. Backtested results are hypothetical and do not represent actual trading; they show how a rule would have behaved over a past period, which is the most honest thing anyone can offer you before you invest. Past performance does not guarantee future results.
Momentum investing is a strategy that favours stocks whose prices have been rising relative to the rest of the market, on the evidence that recent relative strength tends to persist over the medium term. In Sigma Scanner, momentum is one of 14 factors you can weight in a scoring rule — you decide how much it matters, and you can test that weighting against 10+ years of NSE data before you invest.
A screener filters — it returns a list of stocks that pass a condition. Sigma Scanner scores and ranks every stock against a weighted rule you define, then backtests the resulting portfolio across 10+ years, tracks it, tells you when to rebalance, and executes through your broker. A screener answers “which stocks match?” Sigma Scanner answers “would this rule have actually worked, and what do I do next?”
No. Sigma Scanner is not a SEBI-registered Investment Adviser or Research Analyst and does not recommend, endorse or suggest any stock to buy or sell. It ranks stocks solely against the rules and criteria you define. Backtested results are hypothetical, show how a rule would have behaved over a historical period, and do not guarantee future results. Every investment decision is yours.
Learn
Survivorship bias, look-ahead bias, and the missing slippage line. Four checks that separate a real result from a curve-fitted one.
Read moreA 50% loss needs a 100% gain to recover. Why maximum drawdown, not CAGR, is the number that decides whether you stay invested.
Read moreTen years of NSE data, three rebalance frequencies, and what happens to every result once you apply realistic slippage.
Read more
Mobile app
Score, backtest and check your portfolio from your phone. Currently in the final stretch of testing.
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