■ 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 — 34 — is the max pain price.
Open interest by strike · Fri, Oct 16
■ calls (up)■ puts (down)HPQ open contracts per strike for Fri, Oct 16.
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 16
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 16
— call IV— put IVATM ≈ 49.4% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 16
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 16
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.01
27
0.0219
0.00
-0.01
-0.02
0.97
-0.01
27.5
0.0351
0.00
-0.01
-0.03
0.96
-0.02
28
0.0564
0.00
-0.02
-0.04
0.93
-0.03
28.5
0.0891
0.00
-0.03
-0.07
0.88
-0.05
29
0.1356
0.01
-0.05
-0.13
0.80
-0.07
29.5
0.1920
0.01
-0.07
-0.20
0.69
-0.09
30
0.2451
0.01
-0.09
-0.31
0.56
-0.10
30.5
0.2760
0.01
-0.10
-0.45
0.42
-0.10
31
0.2720
0.01
-0.10
-0.58
0.29
-0.09
31.5
0.2373
0.01
-0.09
-0.71
0.20
-0.07
32
0.1870
0.01
-0.07
-0.81
0.12
-0.05
32.5
0.1354
0.01
-0.05
-0.88
0.08
-0.03
33
0.0926
0.00
-0.03
-0.93
0.05
-0.02
33.5
0.0632
0.00
-0.02
-0.95
0.04
-0.02
34
0.0458
0.00
-0.02
-0.97
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 42 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.