Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 — 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 — 685 — is the max pain price.
Open interest by strike · Fri, Dec 4
■ calls (up)■ puts (down)STX open contracts per strike for Fri, Dec 4.
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, Dec 4
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 4
— call IV— put IVATM ≈ 68.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Dec 4
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, Dec 4
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.70
-0.66
600
0.0023
0.75
-0.68
-0.30
0.68
-0.68
610
0.0024
0.77
-0.70
-0.33
0.65
-0.70
620
0.0025
0.80
-0.71
-0.36
0.63
-0.72
630
0.0026
0.81
-0.73
-0.38
0.61
-0.72
635
0.0026
0.82
-0.74
-0.40
0.60
-0.73
640
0.0026
0.83
-0.74
-0.41
0.57
-0.74
650
0.0027
0.84
-0.75
-0.44
0.56
-0.74
655
0.0027
0.85
-0.75
-0.45
0.53
-0.74
665
0.0027
0.85
-0.76
-0.48
0.49
-0.74
680
0.0028
0.86
-0.76
-0.52
0.48
-0.74
685
0.0028
0.85
-0.75
-0.53
0.44
-0.73
700
0.0027
0.84
-0.74
-0.57
0.40
-0.71
715
0.0027
0.83
-0.72
-0.61
0.39
-0.71
720
0.0027
0.82
-0.72
-0.62
0.38
-0.70
725
0.0026
0.81
-0.71
-0.64
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 31 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.