■ 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 — 145 — is the max pain price.
Open interest by strike · Fri, Sep 4
■ calls (up)■ puts (down)VST open contracts per strike for Fri, Sep 4.
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, Sep 4
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 4
— call IV— put IVATM ≈ 43.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 4
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, Sep 4
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.00
110
0.0010
0.01
-0.01
-0.01
0.99
-0.01
115
0.0021
0.01
-0.01
-0.01
0.97
-0.02
120
0.0041
0.02
-0.03
-0.03
0.94
-0.04
125
0.0075
0.04
-0.05
-0.06
0.89
-0.07
130
0.0126
0.06
-0.07
-0.11
0.81
-0.10
135
0.0188
0.09
-0.11
-0.19
0.70
-0.14
140
0.0247
0.11
-0.14
-0.30
0.56
-0.15
145
0.0280
0.13
-0.16
-0.44
0.43
-0.15
150
0.0276
0.13
-0.16
-0.58
0.30
-0.14
155
0.0242
0.11
-0.14
-0.70
0.21
-0.12
160
0.0194
0.09
-0.12
-0.80
0.14
-0.09
165
0.0145
0.07
-0.09
-0.88
0.09
-0.07
170
0.0104
0.05
-0.07
-0.93
0.06
-0.05
175
0.0073
0.04
-0.05
-0.96
0.04
-0.04
180
0.0050
0.03
-0.04
-0.98
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 24 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.