Daily digest / Bank Nifty / 2026-09-17 · this week
Bank Nifty · Thursday 17 Sep 2026 · close
56,315
-79.2 (-0.14%)
Expiry Tue 29 Sep · 8 sessions
Quiet, range-bound session
Bank Nifty traded a narrow 474 pts range and closed at 56,315. Put writers added the most fresh OI at 54,000 (+0.9 L). Call writers built positions at 56,400–58,000, led by 58,000 (+1.3 L). Max pain moved from 57,300 to 57,100, following price down. PCR fell from 0.86 to 0.82.
Spot
Max pain
PCR
15-min · IST
Key levels into expiry
58,000
Fresh calls +1.3 L
cap
57,500
Call wall · 21.4 L OI
resistance
57,100
Max pain
magnet
56,500
Fresh calls +1.1 L
cap
56,315
Close
●
54,400
Fresh puts +0.5 L
support
54,000
Fresh puts +0.9 L · Put wall · 9.4 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 open1,181
Session range474
The session used 40% 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.