Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 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 — 120 — is the max pain price.
Open interest by strike · Fri, Aug 20
■ calls (up)■ puts (down)POWL open contracts per strike for Fri, Aug 20.
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, Aug 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 20
— call IV— put IVATM ≈ 71.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 20
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, Aug 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.81
-0.04
115
0.0026
0.39
-0.05
-0.20
0.79
-0.04
120
0.0028
0.41
-0.05
-0.22
0.76
-0.04
130
0.0030
0.45
-0.05
-0.25
0.74
-0.05
135
0.0032
0.47
-0.06
-0.27
0.72
-0.05
140
0.0033
0.48
-0.06
-0.29
0.70
-0.05
145
0.0034
0.50
-0.06
-0.31
0.68
-0.05
150
0.0035
0.51
-0.06
-0.33
0.66
-0.06
155
0.0036
0.52
-0.06
-0.35
0.65
-0.06
160
0.0036
0.53
-0.06
-0.37
0.63
-0.06
165
0.0037
0.54
-0.06
-0.39
0.61
-0.06
170
0.0038
0.55
-0.06
-0.41
0.59
-0.06
175
0.0038
0.55
-0.06
-0.42
0.57
-0.06
180
0.0039
0.56
-0.06
-0.44
0.54
-0.06
190
0.0039
0.56
-0.06
-0.48
0.52
-0.06
195
0.0039
0.57
-0.06
-0.50
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 29 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.