■ 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 — 190 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)WDAY 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 ≈ 52.6% · 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
0.97
-0.12
167.5
0.0069
0.01
-0.12
-0.03
0.95
-0.17
170
0.0099
0.01
-0.17
-0.05
0.93
-0.23
172.5
0.0141
0.02
-0.23
-0.07
0.90
-0.31
175
0.0201
0.03
-0.31
-0.10
0.85
-0.42
177.5
0.0281
0.03
-0.42
-0.15
0.78
-0.56
180
0.0381
0.04
-0.56
-0.22
0.68
-0.69
182.5
0.0480
0.05
-0.69
-0.33
0.55
-0.77
185
0.0538
0.06
-0.78
-0.45
0.41
-0.75
187.5
0.0527
0.06
-0.76
-0.59
0.29
-0.65
190
0.0458
0.05
-0.66
-0.71
0.20
-0.51
192.5
0.0362
0.04
-0.52
-0.80
0.14
-0.38
195
0.0271
0.03
-0.38
-0.87
0.10
-0.28
197.5
0.0198
0.02
-0.28
-0.91
0.07
-0.21
200
0.0145
0.02
-0.21
-0.94
0.05
-0.17
202.5
0.0110
0.01
-0.17
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 44 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.