StratifyWhat you can do
Everything you can do
You describe a trade the way you would to a colleague. Stratify turns it into a simulation over real one-minute option prices, charges it what a broker would, and tells you honestly whether it held up.
Describe any position
Not a menu of five presets. Any number of legs, any way of naming them.
Any legs
Sell or buy, calls or puts, unequal quantities, one expiry or two. A single bought put or a six-leg double condor are the same sentence to the engine.
Strikes named your way
By percent from spot, by points, at the money, a fixed strike, by premium (“the call trading near ₹50”), by delta, or relative to another leg.
Any entry
Weekly on the day you choose before expiry, or daily on the nearest one. At the open, at 09:30, 11:00, 14:00 — or the close.
Or the quick way
Five common shapes — strangle, iron condor, iron fly, credit spread, long option — as one-line presets when you do not need the detail.
Manage it while it is open
Rules that watch the position every minute and act on it.
Take profit and stop
On the percent of credit kept, on points, on rupees, on the move in the index, on minutes held, at a clock time.
Roll and repair
Roll a tested leg further out. Close one side. Add a hedge. Close everything and re-open at new strikes. Up to a cap you set.
Book-level rules
Stand down after three losers. Stop for the month after a drawdown. Skip the next trade after a loss. Resume after a number of days.
Trail
Move the stop as the trade goes your way, on run-up from the trough or drawdown from the peak.
Say when to trade
Every condition is settled before the session opens — none can see the day's own close.
Volatility
India VIX, its change, and 20-day realised volatility. “Only sell when VIX is above 15.”
Yesterday's move
The previous day's move, the opening gap. “Only after a 1% down day.”
Calendar
Day of the week, days to expiry. “Only Thursdays, only 0 to 2 days out.”
Indicators on the index
RSI, simple and exponential averages, and crossovers — any window from 2 to 250 days, all computed on yesterday's close. “Only when RSI(14) is under 30”, “only while the 9 is over the 21”.
Directional bias
EMA trend, RSI momentum, MACD, Bollinger and Donchian breakouts, ATR, rate of change — pick a side, or stay neutral.
What comes back
Numbers a broker statement would agree with, and an honest reading of them.
Real costs
Brokerage per leg, STT on the sell side, exchange and SEBI fees, GST, stamp duty. Slippage by moneyness. Margin from a SPAN calibration.
The honesty panel
A chronological 70/30 split, three walk-forward folds, a bootstrap interval, and a Sharpe deflated for how many variants you have already tried. No ratio below 30 trades.
A report you can share
One link: the rules, what it did to your capital with the sizing live in the page, a shaded calendar of every trade, the equity curve, and the evidence. Works on a phone.
A replay
Step through every entry and exit on the index, day by day, at the speed you choose.
Where it works
The same server, in whichever assistant you already use.
Free, today.
A year of NIFTY, every feature above, no card.