Daily digest / Bank Nifty / 2026-08-21 · this week
Bank Nifty · Friday 21 Aug 2026 · close
57,699
+79.8 (+0.14%)
2nd straight up dayExpiry Tue 25 Aug · 2 sessions
Quiet session pinned near max pain 57,700
Bank Nifty traded a narrow 142 pts range and closed at 57,699. Put writers added the most fresh OI at 58,000 (+1.1 L). Call writers built positions at 58,500–59,300, led by 58,700 (+0.8 L). Max pain moved from 57,600 to 57,700, following price up.
Spot
Max pain
PCR
15-min · IST
Key levels into expiry
59,300
Fresh calls +0.7 L
cap
58,700
Fresh calls +0.8 L
cap
58,000
Call wall · 23.0 L OI
resistance
57,700
Max pain
magnet
57,699
Close
●
57,000
Put wall · 13.4 L OI
floor
56,900
Fresh puts +0.4 L
support
56,400
Fresh puts +0.4 L
support
Where writers added today
■ calls ■ puts · OI change from the first snapshot to the close, strikes near spot
Move vs what options priced
Monthly ATM straddle at open531
Session range142
The session used 27% of the monthly straddle's priced move.
Last 6 sessions
Reading these numbers
- Max pain is the strike where option buyers collectively lose the most at expiry. It often drifts with price, and the pull tends to strengthen into expiry.
- Fresh OI shows where option writers opened new positions during the session. Heavy put writing below price often marks a level sellers expect to hold; heavy call writing above marks a ceiling.
- PCR is put OI ÷ call OI for the monthly expiry.
- Straddle vs range compares the ATM straddle price at the open (what options priced in) with the distance price actually covered.
Descriptive summaries of recorded option-chain positioning, generated automatically — not trading signals or advice.
Read the 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.