■ 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 — 26 — is the max pain price.
Open interest by strike · Fri, Aug 21
■ calls (up)■ puts (down)SVIX 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 ≈ 35.6% · 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
0.96
-0.01
23
0.0403
0.00
-0.01
-0.04
0.95
-0.01
23.5
0.0571
0.00
-0.01
-0.06
0.93
-0.02
24
0.0818
0.01
-0.02
-0.08
0.89
-0.02
24.5
0.1178
0.01
-0.02
-0.11
0.84
-0.03
25
0.1693
0.01
-0.03
-0.17
0.76
-0.03
25.5
0.2372
0.01
-0.03
-0.25
0.63
-0.04
26
0.3084
0.01
-0.04
-0.37
0.47
-0.04
26.5
0.3401
0.01
-0.04
-0.53
0.31
-0.03
27
0.2993
0.01
-0.03
-0.69
0.20
-0.03
27.5
0.2221
0.01
-0.02
-0.80
0.13
-0.02
28
0.1538
0.01
-0.02
-0.87
0.08
-0.01
28.5
0.1055
0.01
-0.01
-0.92
0.06
-0.01
29
0.0735
0.00
-0.01
-0.94
0.03
-0.01
30
0.0382
0.00
-0.01
-0.97
0.02
-0.01
31
0.0217
0.00
-0.01
-0.98
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 33 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.