HowThe settle strike with the smallest total payout to option holders for the 2026-11-13 expiration, over 48 strikes carrying 16,824 open contracts. Open interest is published once a day, before the open, so it describes the previous session.
SourcePut open interest divided by call open interest
As ofCboe delayed snapshot Nov 10, 11:07 AM ET
How8,436 put contracts / 8,388 call contracts = 1.01 for the 2026-11-13 expiration. Open interest is published once a day, before the open, so it describes the previous session.
SourceNet gamma exposure from Cboe greeks and open interest
As ofCboe delayed snapshot Nov 10, 11:07 AM ET
HowOver every strike with open interest for the 2026-11-13 expiration: (call gamma × call OI minus put gamma × put OI) × 100 × spot² × 1%, summed. Calls count as positive and puts as negative, a convention about who holds the other side, not a measurement.
■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 167 — is the max pain price.
Open interest by strike · Fri, Nov 13
■ calls (up)■ puts (down)XLI open contracts per strike for Fri, Nov 13.
Open-interest change: building vs unwinding
Needs two observed snapshot days for this expiration; the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Nov 13
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 13
— call IV— put IVATM ≈ 26.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 13
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Nov 13
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.88
-0.14
161
0.0392
0.03
-0.15
-0.12
0.84
-0.17
162
0.0490
0.04
-0.17
-0.15
0.82
-0.19
162.5
0.0544
0.04
-0.19
-0.18
0.80
-0.20
163
0.0601
0.04
-0.21
-0.20
0.74
-0.23
164
0.0722
0.05
-0.24
-0.26
0.67
-0.26
165
0.0837
0.06
-0.26
-0.34
0.58
-0.27
166
0.0929
0.06
-0.28
-0.42
0.49
-0.27
167
0.0973
0.06
-0.28
-0.52
0.44
-0.27
167.5
0.0971
0.06
-0.27
-0.57
0.39
-0.26
168
0.0953
0.06
-0.26
-0.62
0.30
-0.22
169
0.0869
0.06
-0.23
-0.71
0.22
-0.18
170
0.0739
0.05
-0.19
-0.79
0.15
-0.14
171
0.0592
0.04
-0.14
-0.85
0.11
-0.11
172
0.0454
0.03
-0.11
-0.90
0.09
-0.09
172.5
0.0392
0.03
-0.09
-0.92
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 48 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Max pain, walls and gamma print only when an expiration holds at least 100 open contracts across 5 strikes, and max pain also needs to stay within 5% of spot when its single heaviest strike is removed. Below that the expiration reads as thin rather than printing a level one trade could move.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.