Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 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, Jan 15
■ calls (up)■ puts (down)MDT open contracts per strike for Fri, Jan 15.
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, Jan 15
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jan 15
— call IV— put IVATM ≈ 24.2% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jan 15
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, Jan 15
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.01
77.5
0.0093
0.05
-0.01
-0.08
0.92
-0.01
80
0.0122
0.07
-0.01
-0.10
0.89
-0.01
82.5
0.0161
0.09
-0.02
-0.13
0.84
-0.02
85
0.0208
0.11
-0.02
-0.18
0.78
-0.02
87.5
0.0257
0.13
-0.02
-0.24
0.71
-0.03
90
0.0302
0.15
-0.03
-0.31
0.63
-0.03
92.5
0.0338
0.17
-0.03
-0.39
0.54
-0.03
95
0.0357
0.17
-0.03
-0.48
0.45
-0.03
97.5
0.0357
0.17
-0.03
-0.57
0.37
-0.03
100
0.0339
0.17
-0.03
-0.65
0.22
-0.02
105
0.0269
0.13
-0.02
-0.79
0.13
-0.01
110
0.0185
0.09
-0.01
-0.88
0.08
-0.01
115
0.0122
0.07
-0.01
-0.93
0.06
-0.01
120
0.0088
0.05
-0.01
-0.95
0.05
-0.01
125
0.0068
0.04
-0.01
-0.97
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.