Daily digest / Bank Nifty / 2026-09-15 · this week
Bank Nifty · Tuesday 15 Sep 2026 · close
56,004
-921.0 (-1.62%)
Expiry Tue 29 Sep · 10 sessions
Selling from the open, closes near the lows
Bank Nifty slid 1,013 pts from 57,017 at 09:15 to 56,004 by 15:40 IST. Put writers added the most fresh OI at 53,500 (+1.3 L). Call writers built positions at 56,000–57,000, led by 57,000 (+3.0 L). Max pain moved from 57,500 to 57,100, following price down. PCR fell from 0.91 to 0.79.
Spot
Max pain
PCR
15-min · IST
Key levels into expiry
57,500
Call wall · 21.9 L OI
resistance
57,100
Max pain
magnet
57,000
Fresh calls +3.0 L
cap
56,500
Fresh calls +2.7 L
cap
56,004
Close
●
56,000
Put wall · 8.1 L OI
floor
53,700
Fresh puts +0.2 L
support
53,500
Fresh puts +1.3 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 open1,194
Session range1,014
The session used 85% 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.