Event risk before this expiration:Jobs report Fri, Oct 2 · 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 — 990 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)MU 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 ≈ 64.1% · 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
0.69
-1.14
1020
0.0017
1.13
-1.16
-0.31
0.68
-1.16
1025
0.0018
1.14
-1.17
-0.32
0.67
-1.17
1030
0.0018
1.15
-1.19
-0.33
0.65
-1.20
1040
0.0018
1.18
-1.22
-0.35
0.63
-1.23
1050
0.0018
1.20
-1.24
-0.37
0.61
-1.25
1060
0.0019
1.22
-1.26
-0.39
0.57
-1.29
1085
0.0019
1.26
-1.31
-0.43
0.54
-1.31
1100
0.0019
1.27
-1.32
-0.46
0.53
-1.32
1105
0.0019
1.27
-1.33
-0.47
0.45
-1.32
1150
0.0019
1.26
-1.33
-0.56
0.41
-1.31
1170
0.0019
1.24
-1.31
-0.59
0.39
-1.29
1180
0.0018
1.23
-1.30
-0.61
0.36
-1.27
1200
0.0018
1.20
-1.27
-0.64
0.35
-1.25
1210
0.0017
1.18
-1.25
-0.66
0.32
-1.21
1230
0.0017
1.14
-1.21
-0.69
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.