EMA Crossover 10/21

A 10/21 EMA crossover, watched live and executed in three stages.

Buy rule

Watched every 5 minutes through the day. The moment price crosses the level where the 10-day average would overtake the 21-day, you get an alert — but that is only a heads-up, not a trade. The buy happens only if the CLOSE still confirms the cross, and it is then filled at the NEXT session's opening price. A spike that gives it all back by the close buys nothing.

Sell rule

Watched the same way: an alert fires the moment price breaks the down-cross level, then the break must STILL hold at 15:15. If it does, the position is sold at that day's close rather than waiting for tomorrow — because the next open can gap further down. If price recovers before 15:15, nothing is sold and the near-miss is logged. Formally: the 10-day average crosses back BELOW the 21-day — the death cross.

Universe

Trades stocks drawn from the Atlas-scored Nifty 500.

Which names

When more names cross than there are open slots, the highest Atlas composite score on the signal day wins the slot; ties break by instrument id, which is deterministic rather than meaningful. Names that miss out are DROPPED, not queued — they only get another chance if they cross again. Every booked trade records the conviction it carried and names the candidates it beat.

Position sizing

Starts 100% in cash and only ever buys on a fresh signal. Each position is capped at 8% of portfolio value — about 12 equal slots. When several names fill at once they share the remaining cash, so a later name can come in below the cap; the trade log says when that happened. Buys fill at the next session's OPEN, sells at that day's CLOSE. Prices are adjusted for splits and bonuses, so they will not always match a raw broker screen. This book carries NO stop-loss — deliberately: every stop tested made these crossover books worse.