■ 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 — 32.5 — is the max pain price.
Open interest by strike · Fri, Aug 21
■ calls (up)■ puts (down)VKTX 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 ≈ 53.0% · 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
0.94
-0.02
29
0.0411
0.01
-0.02
-0.06
0.90
-0.03
30
0.0668
0.01
-0.03
-0.10
0.86
-0.04
30.5
0.0842
0.01
-0.04
-0.14
0.82
-0.05
31
0.1044
0.01
-0.05
-0.18
0.77
-0.05
31.5
0.1260
0.01
-0.05
-0.23
0.70
-0.06
32
0.1465
0.02
-0.06
-0.30
0.62
-0.07
32.5
0.1624
0.02
-0.07
-0.38
0.54
-0.07
33
0.1700
0.02
-0.07
-0.46
0.45
-0.07
33.5
0.1682
0.02
-0.07
-0.55
0.38
-0.07
34
0.1581
0.02
-0.07
-0.63
0.31
-0.06
34.5
0.1428
0.02
-0.06
-0.70
0.25
-0.06
35
0.1254
0.01
-0.06
-0.75
0.20
-0.05
35.5
0.1080
0.01
-0.05
-0.80
0.17
-0.05
36
0.0921
0.01
-0.05
-0.84
0.14
-0.04
36.5
0.0780
0.01
-0.04
-0.87
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 47 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.