■ 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 — 130 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)SHOP open contracts per strike for Fri, Nov 20.
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 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 53.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.88
-0.03
115
0.0050
0.15
-0.05
-0.12
0.84
-0.04
120
0.0059
0.18
-0.06
-0.16
0.81
-0.05
125
0.0068
0.20
-0.06
-0.20
0.76
-0.06
130
0.0077
0.23
-0.07
-0.24
0.72
-0.07
135
0.0085
0.25
-0.08
-0.28
0.67
-0.08
140
0.0091
0.26
-0.08
-0.33
0.62
-0.08
145
0.0096
0.28
-0.08
-0.38
0.57
-0.08
150
0.0100
0.29
-0.09
-0.43
0.52
-0.09
155
0.0102
0.29
-0.09
-0.48
0.47
-0.09
160
0.0102
0.29
-0.09
-0.54
0.43
-0.09
165
0.0100
0.29
-0.08
-0.58
0.38
-0.08
170
0.0098
0.28
-0.08
-0.63
0.34
-0.08
175
0.0094
0.27
-0.07
-0.67
0.30
-0.08
180
0.0089
0.25
-0.07
-0.71
0.27
-0.07
185
0.0084
0.24
-0.06
-0.75
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 36 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.
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.