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 — 150 — is the max pain price.
Open interest by strike · Fri, Nov 13
■ calls (up)■ puts (down)SMTC open contracts per strike for Fri, Nov 13.
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 13
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 13
— call IV— put IVATM ≈ 82.1% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 13
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 13
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.99
-0.03
70
0.0007
0.01
-0.03
-0.01
0.94
-0.09
95
0.0040
0.04
-0.09
-0.07
0.91
-0.12
100
0.0054
0.05
-0.12
-0.09
0.83
-0.17
110
0.0088
0.08
-0.17
-0.17
0.78
-0.19
115
0.0107
0.09
-0.20
-0.22
0.72
-0.22
120
0.0124
0.11
-0.22
-0.28
0.65
-0.24
125
0.0139
0.12
-0.24
-0.35
0.58
-0.25
130
0.0149
0.12
-0.25
-0.43
0.50
-0.25
135
0.0153
0.13
-0.25
-0.50
0.43
-0.24
140
0.0151
0.13
-0.25
-0.57
0.36
-0.23
145
0.0144
0.12
-0.23
-0.64
0.30
-0.21
150
0.0133
0.11
-0.22
-0.71
0.25
-0.20
155
0.0120
0.10
-0.20
-0.76
0.20
-0.17
160
0.0106
0.09
-0.18
-0.81
0.16
-0.15
165
0.0092
0.08
-0.16
-0.84
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 31 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.