QuantSentinel · Trader-first systematic risk

Margin · SPAN + exposure · per position

Engine: SPAN replica v2.4 · matches broker to ±0.3%

Total used

₹1,20,800

Available

₹2,20,000

Utilisation

68%

SPAN cushion

₹28,200

Broker limit

₹3,40,000

Symbol	SPAN	Exposure	Total	% of book
NIFTY 22500 CE	38,400	6,200	₹44,600	37%
NIFTY 22600 PE	36,800	5,900	₹42,700	35%
SENSEX 74000 CE	22,400	3,800	₹26,200	22%
NIFTY 22700 CE	6,200	1,100	₹7,300	6%
Total	1,03,800	17,000	₹1,20,800	100%

Margin under stress · would book survive?

Spot −2% / IV +10

+28,400OK

Spot −3% / IV +20

+54,200OK

Spot −5% / IV +30 (PANIC)

+92,800BREACH

VIX shock +40%

+38,600OK

Broker reconciliation · internal book vs Zerodha vs Dhan

All in sync · last 10:18:42 IST

Sync interval

Diffs · 24h

Zerodha latency

42ms

Dhan latency

68ms

Symbol	Internal	Zerodha	Dhan	Last sync
NIFTY 22500 CE	-2	-2	0	10:18:36
NIFTY 22600 PE	-2	-2	0	10:18:36
SENSEX 74000 CE	-1	0	-1	10:18:34
NIFTY 22700 CE	1	1	0	10:18:36

Internal book is the source of truth; broker positions are compared every 5s. Any drift triggers an L2 alert.

Execution quality · the cost of being on the screen

Today · 14 fills

Avg slippage

2.1 bps

P95 slippage

6.4 bps

Fill rate

98.2%

Partials

1.8%

Lat P50

42ms

Lat P95

118ms

Fills · last 30 min

Time	Symbol	Side	Qty	Price	Venue	Slip	Broker
10:16:42	NIFTY 22400 PE	BUY	150	38.40	NSE	2 bps	Zerodha
10:16:38	NIFTY 22700 CE	BUY	75	28.20	NSE	1 bps	Zerodha
10:11:02	BANKNIFTY 48500 CE	BUY	15	128.40	NSE	4 bps	Zerodha
10:02:14	SENSEX 74000 CE	SELL	10	68.40	BSE	3 bps	Dhan
09:58:08	NIFTY 22600 PE	SELL	75	132.10	NSE	2 bps	Zerodha
09:48:32	NIFTY 22500 CE	SELL	150	182.40	NSE	1 bps	Zerodha
09:48:30	NIFTY 22600 PE	SELL	150	94.20	NSE	2 bps	Zerodha

Venue mix · today

NSE82%

BSE18%

Why this matters

Most retail traders never see their effective spread. A 4-bps slippage on a credit spread eats roughly 8% of expected edge on a typical 50-bps trade. We surface it so you can choose between Zerodha and Dhan based on the contract you’re trading, not blind habit.