Daily digest / Bank Nifty / 2026-08-17 · this week
Bank Nifty · Monday 17 Aug 2026 · close
57,794
+83.5 (+0.14%)
Expiry Tue 25 Aug · 6 sessions
Early rally, closes near the highs
Bank Nifty climbed 590 pts from 57,286 at 10:45 to 57,877 by 13:15 IST. Put writers added the most fresh OI at 57,500 (+1.7 L), right where the low held. Call writers built positions at 57,800–59,300, led by 59,300 (+1.0 L). Max pain held at 57,800 all session. PCR rose from 0.78 to 0.84.
Spot
Max pain
57,500 support
PCR
15-min · IST
Key levels into expiry
59,300
Fresh calls +1.0 L
cap
58,500
Fresh calls +1.0 L
cap
58,000
Call wall · 21.4 L OI
resistance
57,800
Max pain
magnet
57,794
Close
●
57,500
Fresh puts +1.7 L · held the low
support
57,000
Put wall · 10.4 L OI
floor
55,700
Fresh puts +1.1 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 open884
Session range613
The session used 69% 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.