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 — 70 — is the max pain price.
Open interest by strike · Fri, Nov 13
■ calls (up)■ puts (down)ACMR open contracts per strike for Fri, Nov 13.
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 13
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 13
— call IV— put IVATM ≈ 99.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 13
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 13
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.76
-0.09
44
0.0253
0.04
-0.09
-0.24
0.73
-0.10
45
0.0271
0.04
-0.10
-0.27
0.70
-0.10
46
0.0288
0.04
-0.10
-0.30
0.57
-0.11
50
0.0334
0.05
-0.11
-0.43
0.44
-0.11
54
0.0338
0.05
-0.11
-0.56
0.41
-0.11
55
0.0333
0.05
-0.11
-0.60
0.35
-0.10
57
0.0317
0.04
-0.10
-0.66
0.27
-0.09
60
0.0282
0.04
-0.09
-0.73
0.25
-0.09
61
0.0270
0.04
-0.09
-0.75
0.18
-0.07
65
0.0216
0.03
-0.07
-0.83
0.16
-0.07
66
0.0203
0.03
-0.07
-0.84
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 11 strikes around the money — all 27 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.