■ 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 — 337.5 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)HLT open contracts per strike for Fri, Oct 23.
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, Oct 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 22.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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, Oct 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.88
-0.21
327.5
0.0124
0.10
-0.21
-0.12
0.86
-0.23
330
0.0149
0.11
-0.24
-0.14
0.83
-0.26
332.5
0.0179
0.12
-0.26
-0.17
0.79
-0.28
335
0.0214
0.14
-0.28
-0.21
0.74
-0.30
337.5
0.0253
0.16
-0.30
-0.26
0.68
-0.32
340
0.0295
0.17
-0.32
-0.32
0.61
-0.32
342.5
0.0334
0.18
-0.33
-0.40
0.52
-0.32
345
0.0362
0.19
-0.33
-0.48
0.43
-0.31
347.5
0.0370
0.19
-0.31
-0.58
0.34
-0.28
350
0.0351
0.18
-0.29
-0.67
0.26
-0.24
352.5
0.0311
0.16
-0.25
-0.76
0.19
-0.20
355
0.0259
0.13
-0.21
-0.82
0.14
-0.17
357.5
0.0207
0.11
-0.17
-0.88
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 13 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.