■ 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, Oct 16
■ calls (up)■ puts (down)MHO 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 ≈ 33.1% · 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
0.93
-0.04
115
0.0042
0.09
-0.04
-0.07
0.91
-0.04
120
0.0054
0.10
-0.04
-0.09
0.89
-0.04
125
0.0069
0.12
-0.04
-0.12
0.85
-0.05
130
0.0088
0.15
-0.05
-0.15
0.81
-0.05
135
0.0112
0.17
-0.05
-0.19
0.76
-0.06
140
0.0139
0.20
-0.06
-0.25
0.68
-0.06
145
0.0166
0.23
-0.06
-0.32
0.59
-0.06
150
0.0187
0.25
-0.07
-0.41
0.50
-0.06
155
0.0196
0.25
-0.07
-0.51
0.40
-0.06
160
0.0190
0.24
-0.07
-0.61
0.32
-0.06
165
0.0174
0.23
-0.06
-0.70
0.20
-0.05
175
0.0128
0.18
-0.05
-0.83
0.15
-0.04
180
0.0107
0.15
-0.05
-0.88
0.12
-0.04
185
0.0088
0.13
-0.04
-0.91
0.10
-0.03
190
0.0072
0.11
-0.04
-0.94
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.