Daily digest / SENSEX / 2026-10-21 · this week
SENSEX · Wednesday 21 Oct 2026 · close
73,504 -364.3 (-0.49%)
2nd straight down dayExpiry Thu 22 Oct · 1 session

Early sell-off, losses pared into the close

SENSEX slid 1,370 pts from 74,627 at 09:45 to 73,257 by 14:30 IST. Put writers added the most fresh OI at 71,500 (+8.4 L). Call writers built positions at 75,000–77,000, led by 77,000 (+17.7 L). Max pain moved from 74,000 to 73,600, following price down. PCR fell from 0.74 to 0.54.

Spot Max pain PCR 15-min · IST
Open73,835
High · 09:4074,706
Low · 14:2673,211
Avg PCR0.72
Max pain73,600

Key levels into expiry

77,000 Fresh calls +17.7 L cap
75,000 Call wall · 33.1 L OI · Fresh calls +15.0 L resistance
73,600 Max pain magnet
73,504 Close ●
72,500 Fresh puts +6.9 L support
72,000 Put wall · 19.0 L OI floor
71,500 Fresh puts +8.4 L support

Where writers added today

77,000
+17.7 L
75,000
+15.0 L
76,500
+14.8 L
71,500
+8.4 L
72,500
+6.9 L
72,000
+6.1 L
■ calls   ■ puts · OI change from the first snapshot to the close, strikes near spot

Move vs what options priced

Weekly ATM straddle at open754
Session range1,495
One session moved 2.0× the weekly straddle's full priced move.

Last 6 sessions

10-13 73,256 —
PCR 1.24
MP 72,800 10-14 72,713 -542
PCR 1.31
MP 72,800 10-15 74,316 +1,602
PCR 1.74
MP 74,100 10-16 74,553 +238
PCR 1.22
MP 74,500 10-19 73,869 -685
PCR 0.88
MP 74,000 10-21 73,504 -364
PCR 0.72
MP 73,600

Max pain: strike where option buyers lose most at expiry. Fresh OI: positions opened this session. PCR: put OI ÷ call OI.

Descriptive summaries of recorded option-chain data. Not trading signals or advice. Disclaimer →

Related reading

PCR explained →

How put-call ratio is calculated and when it misleads.

Max pain theory →

Why max pain matters near expiry.

OI buildup →

Reading the four OI patterns.

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