Event risk before this expiration:Jobs report Fri, Aug 7 · CPI release Wed, Aug 12 — 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, Aug 21
■ calls (up)■ puts (down)CRWD open contracts per strike for Fri, Aug 21.
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 21
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 21
— call IV— put IVATM ≈ 55.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 21
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 21
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.19
187.5
0.0095
0.11
-0.19
-0.16
0.81
-0.21
190
0.0106
0.12
-0.21
-0.19
0.79
-0.23
192.5
0.0116
0.13
-0.23
-0.22
0.75
-0.25
195
0.0126
0.14
-0.25
-0.25
0.68
-0.28
200
0.0143
0.16
-0.28
-0.32
0.60
-0.30
205
0.0155
0.17
-0.30
-0.40
0.57
-0.31
207.5
0.0159
0.17
-0.31
-0.44
0.53
-0.31
210
0.0161
0.17
-0.31
-0.48
0.49
-0.31
212.5
0.0161
0.17
-0.31
-0.52
0.45
-0.31
215
0.0159
0.17
-0.31
-0.56
0.41
-0.30
217.5
0.0156
0.17
-0.30
-0.59
0.37
-0.29
220
0.0152
0.17
-0.30
-0.63
0.30
-0.27
225
0.0140
0.15
-0.27
-0.70
0.24
-0.24
230
0.0125
0.14
-0.24
-0.76
0.17
-0.20
237.5
0.0100
0.11
-0.20
-0.84
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.