■ 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 — 312.5 — is the max pain price.
Open interest by strike · Fri, Sep 25
■ calls (up)■ puts (down)HD open contracts per strike for Fri, Sep 25.
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 25
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 25
— call IV— put IVATM ≈ 22.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 25
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 25
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.98
-0.03
275
0.0031
0.02
-0.03
-0.01
0.97
-0.05
280
0.0061
0.03
-0.05
-0.03
0.93
-0.09
285
0.0122
0.06
-0.09
-0.07
0.86
-0.16
290
0.0227
0.10
-0.16
-0.15
0.79
-0.20
292.5
0.0291
0.12
-0.20
-0.21
0.71
-0.24
295
0.0351
0.14
-0.24
-0.29
0.62
-0.27
297.5
0.0397
0.16
-0.27
-0.38
0.52
-0.28
300
0.0419
0.17
-0.28
-0.49
0.41
-0.27
302.5
0.0411
0.16
-0.28
-0.59
0.32
-0.25
305
0.0376
0.15
-0.25
-0.69
0.23
-0.21
307.5
0.0321
0.13
-0.21
-0.78
0.16
-0.17
310
0.0258
0.10
-0.17
-0.85
0.11
-0.13
312.5
0.0196
0.08
-0.13
-0.90
0.07
-0.09
315
0.0142
0.06
-0.09
-0.94
0.05
-0.07
317.5
0.0101
0.04
-0.06
-0.96
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 49 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.