■ 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 — 143 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)WPM open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 58.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.87
-0.21
129
0.0323
0.03
-0.21
-0.13
0.84
-0.24
130
0.0385
0.03
-0.24
-0.16
0.80
-0.28
131
0.0452
0.03
-0.28
-0.20
0.76
-0.32
132
0.0520
0.04
-0.32
-0.24
0.70
-0.36
133
0.0583
0.04
-0.36
-0.30
0.64
-0.39
134
0.0635
0.05
-0.39
-0.36
0.58
-0.41
135
0.0671
0.05
-0.41
-0.42
0.51
-0.42
136
0.0684
0.05
-0.42
-0.49
0.44
-0.42
137
0.0676
0.05
-0.42
-0.56
0.38
-0.40
138
0.0646
0.05
-0.40
-0.62
0.32
-0.37
139
0.0600
0.04
-0.37
-0.68
0.26
-0.34
140
0.0544
0.04
-0.34
-0.74
0.22
-0.30
141
0.0482
0.04
-0.30
-0.78
0.18
-0.27
142
0.0421
0.03
-0.27
-0.82
0.15
-0.23
143
0.0362
0.03
-0.23
-0.85
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.