COST-FIRST ANALYTICS · NSE INTRADAY
Every trade starts below zero.
ThreeTwenty is cost-first analytics for Indian intraday trading. Every signal is priced net of brokerage, STT, GST, stamp duty and modelled slippage — before it reaches you.
Named for 3:20 PM, the minute Indian brokers force every intraday position closed. The system is named after its deadline.
PRE-OPEN
Priced before the bell.
Most intraday traders in India lose money. The tools they are sold discuss entries, indicators and targets — and stay silent on the one number that is certain before any trade begins: what the trade costs. Nobody shows the trader their contract note first.
ThreeTwenty starts where the loss actually happens: the charges. A signal is not allowed to exist until it has paid, on paper, every rupee of brokerage, STT, exchange transaction charges, SEBI and IPFT fees, GST, stamp duty and modelled slippage.
THE OPEN
The arithmetic
A round trip at retail size costs about 0.146% of notional — 0.1063% in charges alone, the rest modelled slippage. Brokerage stops scaling at roughly ₹66,667 per side; at any size the friction floor is about 0.076%.
Your opponent isn't the market. It's your contract note.
With zero costs, a 2R trade breaks even at a 33.3% win rate. Tight stops don't reduce risk — they hand it to the exchange. A 0.1% stop pays 137% of its own risk in charges. No indicator survives that.
True-cost calculator
NSE EQUITY INTRADAY · MISRates follow a discount-broker equity intraday schedule. Charges are illustrative; verify with your broker.
Stop losses don't reduce risk. Tight ones donate it.
Cost ÷ stop width = the share of your risk unit the exchange keeps. Above 50% the system calls the trade uneconomical and it is never signalled.
OAKLAND
The Moneyball math
A team with no money beat teams with all of it by pricing what the market mispriced. Indian intraday has the same mispricing: everyone models the signal, nobody models the toll. The edge, in the design document's words: "it is arithmetic, not signal quality."
0.146% round trip at retail size, brokerage cap at ≈₹66,667 per side, 0.076% floor at any size. The budget nobody else prices.
One division: friction ÷ stop width. A 0.1% stop pays 137% of its own risk in charges. The unglamorous number that decides everything.
Every strategy is measured against the free alternative: not trading. If it cannot beat zero after charges, it is replaced by zero.
Watchlist admission is by measurable criteria. Stocks that fail are excluded, not argued about.
Strategies are ranked by their lower confidence bound (z = 1.645) — the worst plausible version of themselves, not the best day.
Book exposure split 55 : 35 : 10 across volatility buckets. Daily quota 2 / 2 / 1 per bucket, never backfilled.
Six vetoes between trigger and signal, economics included. The daily-loss lockout survives a restart.
Every strategy proves itself against live prices, charged full modelled friction, before promotion. By statistics, not vibes.
Built to say no.
Candidates enter a nine-stage funnel. Admission to the watchlist is by measurable criteria — liquidity, spread, tradable range — stocks qualify, they are not picked by vibe. Between "triggered" and "veto survived", six vetoes run. Economics is one of them: a trade that cannot pay its own charges is rejected the way a broker's risk system rejects an order.
Six vetoes run between "triggered" and "veto survived" — economics included.
Some days the right number of trades is zero.
VETOES
Watch a trade earn its signal.
Between a trigger and a signal stand six vetoes. Every candidate is walked through them live — and the cost of the trade decides the verdict before conviction gets a vote.
A trade whose friction exceeds 50% of its risk unit is never signalled.
Illustrative sequence. Costs computed by the friction model; the second pass shows a candidate rejected by the economics veto.
SQUARE-OFF
The deadline that names the system.
At 3:20 PM, Indian brokers force every MIS position closed. That constraint defines intraday trading in India — so the system is built around it, and named after it. Eight modules, each named after the thing it answers to.
AFTER CLOSE
The evidence desk works nights.
Most backtests are written by the marketing department. Ours is written by the defence.
Every strategy proves itself against live prices, every fill charged the full modelled friction, before it is trusted with capital. Promotion is by statistics, not vibes — and until the statistics exist, the site claims nothing.