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 — 20.5 — is the max pain price.
Open interest by strike · Fri, Aug 14
■ calls (up)■ puts (down)RIOT open contracts per strike for Fri, Aug 14.
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 14
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 14
— call IV— put IVATM ≈ 114.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 14
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 14
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.04
16.5
0.0522
0.01
-0.04
-0.16
0.81
-0.04
17
0.0591
0.01
-0.04
-0.19
0.77
-0.05
17.5
0.0658
0.01
-0.05
-0.23
0.73
-0.05
18
0.0719
0.01
-0.05
-0.27
0.69
-0.06
18.5
0.0774
0.01
-0.06
-0.31
0.65
-0.06
19
0.0820
0.01
-0.06
-0.35
0.61
-0.06
19.5
0.0855
0.01
-0.06
-0.39
0.56
-0.06
20
0.0879
0.02
-0.06
-0.44
0.52
-0.06
20.5
0.0891
0.02
-0.06
-0.48
0.48
-0.06
21
0.0892
0.02
-0.06
-0.53
0.43
-0.06
21.5
0.0882
0.02
-0.06
-0.57
0.39
-0.06
22
0.0863
0.01
-0.06
-0.61
0.35
-0.06
22.5
0.0835
0.01
-0.06
-0.65
0.32
-0.06
23
0.0801
0.01
-0.06
-0.68
0.28
-0.05
23.5
0.0761
0.01
-0.05
-0.72
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 48 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.