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 — 104 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)PTF 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 ≈ 60.7% · 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
0.68
-0.13
99
0.0183
0.10
-0.13
-0.32
0.66
-0.13
100
0.0190
0.11
-0.13
-0.34
0.64
-0.13
101
0.0196
0.11
-0.13
-0.36
0.62
-0.13
102
0.0202
0.11
-0.13
-0.38
0.60
-0.13
103
0.0208
0.11
-0.13
-0.40
0.58
-0.13
104
0.0213
0.12
-0.13
-0.42
0.56
-0.13
105
0.0218
0.12
-0.13
-0.45
0.53
-0.13
106
0.0222
0.12
-0.13
-0.47
0.46
-0.12
109
0.0231
0.12
-0.12
-0.54
0.44
-0.12
110
0.0232
0.12
-0.12
-0.56
0.42
-0.12
111
0.0232
0.11
-0.12
-0.59
0.39
-0.11
112
0.0232
0.11
-0.12
-0.61
0.32
-0.10
115
0.0223
0.10
-0.10
-0.68
0.30
-0.10
116
0.0219
0.10
-0.10
-0.70
0.28
-0.09
117
0.0213
0.10
-0.10
-0.73
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 27 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.