Event risk before this expiration:FOMC decision Wed, Oct 28 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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, Oct 30
■ calls (up)■ puts (down)AXP open contracts per strike for Fri, Oct 30.
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 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 27.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.93
-0.12
295
0.0103
0.06
-0.12
-0.07
0.90
-0.15
297.5
0.0134
0.08
-0.15
-0.10
0.87
-0.19
300
0.0170
0.09
-0.19
-0.13
0.82
-0.23
302.5
0.0211
0.11
-0.23
-0.18
0.77
-0.26
305
0.0253
0.13
-0.27
-0.23
0.70
-0.30
307.5
0.0292
0.15
-0.30
-0.30
0.63
-0.33
310
0.0323
0.17
-0.33
-0.38
0.54
-0.34
312.5
0.0342
0.17
-0.34
-0.46
0.46
-0.34
315
0.0343
0.17
-0.34
-0.55
0.37
-0.32
317.5
0.0328
0.17
-0.33
-0.63
0.30
-0.29
320
0.0298
0.15
-0.30
-0.71
0.23
-0.26
322.5
0.0260
0.13
-0.26
-0.78
0.18
-0.22
325
0.0218
0.11
-0.22
-0.83
0.13
-0.18
327.5
0.0178
0.09
-0.18
-0.88
0.10
-0.14
330
0.0141
0.08
-0.14
-0.91
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.