Daily digest / Bank Nifty / 2026-07-31 · this week
Bank Nifty · Friday 31 Jul 2026 · close
57,395
+82.8 (+0.14%)
Expiry Tue 25 Aug · 17 sessions
Quiet session pinned near max pain 57,500
Bank Nifty traded a narrow 210 pts range and closed at 57,395. Put writers added the most fresh OI at 57,000 (+0.6 L). Call writers built positions at 57,400–58,500, led by 57,500 (+1.2 L). Max pain held at 57,500 all session.
Spot
Max pain
57,300 support
PCR
15-min · IST
Key levels into expiry
58,500
Fresh calls +0.7 L
cap
58,000
Call wall · 21.5 L OI
resistance
57,500
Fresh calls +1.2 L · Max pain
cap
57,395
Close
●
57,300
Fresh puts +0.2 L · held the low
support
57,000
Fresh puts +0.6 L · Put wall · 9.1 L OI
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 open1,570
Session range210
The session used 13% of the monthly straddle's priced move.
Last 2 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.