Event risk before this expiration:FOMC decision Wed, Oct 28 — 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 — 116 — is the max pain price.
Open interest by strike · Fri, Oct 30
■ calls (up)■ puts (down)EBAY 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 ≈ 65.5% · 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
0.77
-0.25
114
0.0269
0.05
-0.25
-0.23
0.74
-0.27
115
0.0287
0.06
-0.27
-0.26
0.71
-0.28
116
0.0304
0.06
-0.28
-0.29
0.68
-0.30
117
0.0318
0.06
-0.30
-0.33
0.64
-0.31
118
0.0331
0.06
-0.31
-0.36
0.61
-0.32
119
0.0342
0.07
-0.32
-0.39
0.57
-0.32
120
0.0349
0.07
-0.33
-0.43
0.54
-0.33
121
0.0354
0.07
-0.33
-0.46
0.50
-0.33
122
0.0357
0.07
-0.33
-0.50
0.47
-0.33
123
0.0356
0.07
-0.33
-0.54
0.43
-0.32
124
0.0352
0.07
-0.32
-0.57
0.40
-0.32
125
0.0346
0.07
-0.32
-0.60
0.36
-0.30
126
0.0338
0.06
-0.31
-0.64
0.33
-0.29
127
0.0327
0.06
-0.29
-0.67
0.30
-0.28
128
0.0314
0.06
-0.28
-0.70
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 59 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.