■ 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 — 35 — is the max pain price.
Open interest by strike · Fri, Aug 28
■ calls (up)■ puts (down)VKTX open contracts per strike for Fri, Aug 28.
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 28
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 28
— call IV— put IVATM ≈ 57.0% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 28
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 28
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.84
-0.04
29.5
0.0584
0.02
-0.04
-0.16
0.81
-0.04
30
0.0669
0.02
-0.04
-0.19
0.78
-0.04
30.5
0.0759
0.02
-0.04
-0.22
0.74
-0.04
31
0.0850
0.02
-0.04
-0.26
0.70
-0.05
31.5
0.0937
0.02
-0.05
-0.30
0.65
-0.05
32
0.1012
0.02
-0.05
-0.35
0.60
-0.05
32.5
0.1067
0.03
-0.05
-0.41
0.54
-0.05
33
0.1098
0.03
-0.05
-0.46
0.43
-0.05
34
0.1079
0.03
-0.05
-0.57
0.39
-0.05
34.5
0.1035
0.03
-0.05
-0.62
0.34
-0.05
35
0.0976
0.02
-0.05
-0.67
0.30
-0.05
35.5
0.0908
0.02
-0.05
-0.70
0.26
-0.04
36
0.0837
0.02
-0.05
-0.74
0.21
-0.04
37
0.0698
0.02
-0.04
-0.80
0.18
-0.04
37.5
0.0634
0.02
-0.04
-0.82
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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.