Event risk before this expiration:FOMC decision Wed, Oct 28 · Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 — 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 — 90 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)ECHO open contracts per strike for Fri, Nov 20.
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, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 55.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
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, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.76
-0.08
83
0.0248
0.07
-0.08
-0.24
0.74
-0.08
84
0.0263
0.08
-0.09
-0.27
0.71
-0.09
85
0.0278
0.08
-0.09
-0.29
0.68
-0.09
86
0.0290
0.08
-0.09
-0.33
0.65
-0.10
87
0.0301
0.09
-0.10
-0.35
0.62
-0.10
88
0.0310
0.09
-0.10
-0.39
0.58
-0.10
89
0.0316
0.09
-0.10
-0.42
0.55
-0.10
90
0.0321
0.09
-0.10
-0.45
0.52
-0.10
91
0.0322
0.09
-0.10
-0.48
0.49
-0.10
92
0.0322
0.09
-0.10
-0.52
0.46
-0.10
93
0.0319
0.09
-0.10
-0.55
0.43
-0.10
94
0.0315
0.09
-0.10
-0.58
0.40
-0.10
95
0.0308
0.09
-0.10
-0.61
0.37
-0.10
96
0.0300
0.09
-0.10
-0.64
0.34
-0.10
97
0.0291
0.09
-0.10
-0.66
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 36 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.