■ 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 — 425 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)TSM 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 ≈ 42.8% · 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
0.88
-0.66
422.5
0.0130
0.07
-0.66
-0.12
0.85
-0.80
425
0.0157
0.08
-0.81
-0.15
0.81
-0.97
427.5
0.0186
0.09
-0.97
-0.19
0.76
-1.15
430
0.0216
0.10
-1.15
-0.24
0.71
-1.31
432.5
0.0244
0.11
-1.32
-0.29
0.65
-1.46
435
0.0267
0.12
-1.46
-0.36
0.58
-1.55
437.5
0.0284
0.13
-1.56
-0.43
0.50
-1.57
440
0.0291
0.13
-1.59
-0.50
0.43
-1.53
442.5
0.0289
0.13
-1.55
-0.57
0.36
-1.42
445
0.0277
0.12
-1.44
-0.64
0.29
-1.25
447.5
0.0256
0.11
-1.28
-0.71
0.23
-1.06
450
0.0229
0.10
-1.08
-0.77
0.18
-0.85
452.5
0.0197
0.09
-0.86
-0.82
0.14
-0.65
455
0.0164
0.07
-0.65
-0.87
0.10
-0.48
457.5
0.0132
0.06
-0.47
-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 60 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.