Event risk before this expiration:CPI release Wed, Oct 14 — 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 — 42 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)SMCI open contracts per strike for Fri, Oct 23.
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 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 67.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.79
-0.06
37
0.0586
0.02
-0.06
-0.21
0.76
-0.07
37.5
0.0639
0.02
-0.07
-0.24
0.72
-0.07
38
0.0689
0.02
-0.07
-0.28
0.69
-0.08
38.5
0.0733
0.03
-0.08
-0.31
0.65
-0.08
39
0.0771
0.03
-0.08
-0.35
0.61
-0.08
39.5
0.0801
0.03
-0.08
-0.39
0.57
-0.09
40
0.0821
0.03
-0.09
-0.43
0.53
-0.09
40.5
0.0831
0.03
-0.09
-0.48
0.48
-0.09
41
0.0831
0.03
-0.09
-0.52
0.44
-0.09
41.5
0.0822
0.03
-0.09
-0.56
0.41
-0.08
42
0.0804
0.03
-0.08
-0.60
0.37
-0.08
42.5
0.0779
0.03
-0.08
-0.64
0.33
-0.08
43
0.0748
0.03
-0.08
-0.67
0.30
-0.07
43.5
0.0713
0.03
-0.07
-0.70
0.27
-0.07
44
0.0673
0.02
-0.07
-0.74
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 50 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.