Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — 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 — 320 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)AXP open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 25.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.97
-0.03
270
0.0028
0.07
-0.03
-0.03
0.93
-0.06
280
0.0053
0.12
-0.06
-0.07
0.86
-0.09
290
0.0092
0.19
-0.09
-0.14
0.78
-0.12
297.5
0.0128
0.26
-0.12
-0.22
0.75
-0.13
300
0.0139
0.28
-0.13
-0.25
0.67
-0.14
305
0.0160
0.31
-0.15
-0.33
0.59
-0.15
310
0.0176
0.34
-0.16
-0.42
0.50
-0.16
315
0.0182
0.35
-0.16
-0.51
0.41
-0.15
320
0.0179
0.34
-0.15
-0.60
0.37
-0.14
322.5
0.0174
0.33
-0.15
-0.64
0.33
-0.14
325
0.0167
0.31
-0.14
-0.69
0.28
-0.13
327.5
0.0158
0.30
-0.14
-0.73
0.25
-0.12
330
0.0147
0.28
-0.13
-0.77
0.18
-0.10
335
0.0124
0.23
-0.11
-0.83
0.16
-0.09
337.5
0.0112
0.21
-0.10
-0.86
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 39 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.