■ 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 — 325 — is the max pain price.
Open interest by strike · Fri, Sep 11
■ calls (up)■ puts (down)HLT open contracts per strike for Fri, Sep 11.
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, Sep 11
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 11
— call IV— put IVATM ≈ 22.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 11
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, Sep 11
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.93
-0.09
305
0.0068
0.10
-0.09
-0.08
0.89
-0.11
310
0.0093
0.13
-0.11
-0.11
0.85
-0.13
315
0.0126
0.16
-0.13
-0.15
0.82
-0.14
317.5
0.0146
0.18
-0.14
-0.18
0.79
-0.15
320
0.0168
0.20
-0.16
-0.21
0.70
-0.18
325
0.0213
0.24
-0.18
-0.30
0.59
-0.19
330
0.0251
0.27
-0.19
-0.41
0.46
-0.19
335
0.0264
0.28
-0.19
-0.55
0.33
-0.17
340
0.0244
0.25
-0.17
-0.68
0.28
-0.16
342.5
0.0224
0.23
-0.16
-0.73
0.23
-0.14
345
0.0200
0.21
-0.14
-0.79
0.15
-0.11
350
0.0151
0.17
-0.11
-0.86
0.10
-0.09
355
0.0108
0.13
-0.09
-0.92
0.07
-0.07
360
0.0076
0.09
-0.07
-0.95
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 14 strikes around the money — all 21 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.