HowThe settle strike with the smallest total payout to option holders for the 2026-11-27 expiration, over 64 strikes carrying 6,798 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 11, 12:28 AM ET
How3,395 put contracts / 3,403 call contracts = 1.00 for the 2026-11-27 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 11, 12:28 AM ET
HowOver every strike with open interest for the 2026-11-27 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 — 220 — is the max pain price.
Open interest by strike · Fri, Nov 27
■ calls (up)■ puts (down)COHR open contracts per strike for Fri, Nov 27. Showing the 45 largest of 64 strikes by open interest, 99.1% of the total.
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 27
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 27
— call IV— put IVATM ≈ 92.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 27
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 27
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.77
-0.39
187.5
0.0067
0.14
-0.40
-0.22
0.76
-0.41
190
0.0070
0.14
-0.41
-0.24
0.72
-0.44
195
0.0077
0.16
-0.44
-0.28
0.67
-0.46
200
0.0083
0.17
-0.47
-0.33
0.63
-0.48
205
0.0088
0.17
-0.48
-0.37
0.58
-0.49
210
0.0091
0.18
-0.49
-0.41
0.54
-0.50
215
0.0094
0.18
-0.50
-0.46
0.49
-0.50
220
0.0095
0.18
-0.50
-0.51
0.44
-0.49
225
0.0094
0.18
-0.49
-0.56
0.40
-0.48
230
0.0093
0.18
-0.48
-0.60
0.36
-0.46
235
0.0090
0.17
-0.46
-0.64
0.32
-0.43
240
0.0086
0.16
-0.43
-0.68
0.28
-0.41
245
0.0081
0.15
-0.41
-0.72
0.24
-0.38
250
0.0076
0.14
-0.38
-0.76
0.21
-0.35
255
0.0070
0.13
-0.35
-0.79
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 45 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.