Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 155 — is the max pain price.
Open interest by strike · Fri, Nov 13
■ calls (up)■ puts (down)SKHY open contracts per strike for Fri, Nov 13.
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, Nov 13
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 13
— call IV— put IVATM ≈ 64.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 13
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, Nov 13
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.82
-0.18
144
0.0113
0.09
-0.18
-0.17
0.81
-0.18
145
0.0118
0.09
-0.19
-0.19
0.80
-0.19
146
0.0124
0.10
-0.19
-0.20
0.74
-0.22
150
0.0144
0.11
-0.22
-0.26
0.66
-0.25
155
0.0166
0.13
-0.25
-0.34
0.62
-0.26
157.5
0.0174
0.13
-0.26
-0.38
0.57
-0.26
160
0.0180
0.13
-0.26
-0.43
0.53
-0.27
162.5
0.0183
0.14
-0.27
-0.47
0.48
-0.27
165
0.0184
0.14
-0.27
-0.52
0.44
-0.26
167.5
0.0182
0.14
-0.26
-0.56
0.40
-0.26
170
0.0177
0.13
-0.26
-0.60
0.35
-0.25
172.5
0.0171
0.13
-0.25
-0.65
0.32
-0.24
175
0.0163
0.12
-0.24
-0.68
0.28
-0.23
177.5
0.0153
0.12
-0.23
-0.72
0.25
-0.21
180
0.0143
0.11
-0.21
-0.75
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 43 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.