■ 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 — 118 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)TPR open contracts per strike for Fri, Oct 23.
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, Oct 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 49.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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, Oct 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.02
105
0.0088
0.00
-0.02
-0.01
0.96
-0.05
108
0.0236
0.01
-0.05
-0.04
0.94
-0.09
109
0.0372
0.01
-0.09
-0.06
0.90
-0.16
110
0.0566
0.01
-0.16
-0.10
0.83
-0.28
111
0.0806
0.01
-0.28
-0.17
0.74
-0.48
112
0.1059
0.02
-0.48
-0.26
0.63
-0.78
113
0.1264
0.02
-0.78
-0.38
0.49
-0.99
114
0.1348
0.02
-0.99
-0.51
0.36
-0.72
115
0.1269
0.02
-0.72
-0.64
0.25
-0.43
116
0.1063
0.02
-0.44
-0.75
0.16
-0.25
117
0.0808
0.01
-0.26
-0.84
0.10
-0.14
118
0.0566
0.01
-0.15
-0.91
0.06
-0.07
119
0.0370
0.01
-0.10
-0.95
0.03
-0.04
120
0.0227
0.00
-0.07
-0.98
0.02
-0.02
121
0.0131
0.00
-0.05
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 39 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.