Event risk before this expiration:FOMC decision Wed, Oct 28 · 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 — 70 — is the max pain price.
Open interest by strike · Fri, Mar 19
■ calls (up)■ puts (down)SCI open contracts per strike for Fri, Mar 19.
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, Mar 19
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Mar 19
— call IV— put IVATM ≈ 26.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Mar 19
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, Mar 19
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.97
-0.00
50
0.0031
0.04
-0.01
-0.04
0.90
-0.01
65
0.0101
0.10
-0.01
-0.11
0.84
-0.01
70
0.0148
0.13
-0.01
-0.17
0.81
-0.01
72.5
0.0179
0.14
-0.01
-0.20
0.76
-0.01
75
0.0213
0.16
-0.02
-0.25
0.71
-0.02
77.5
0.0249
0.18
-0.02
-0.31
0.65
-0.02
80
0.0282
0.19
-0.02
-0.37
0.57
-0.02
82.5
0.0307
0.20
-0.02
-0.45
0.50
-0.02
85
0.0318
0.20
-0.02
-0.53
0.42
-0.02
87.5
0.0313
0.20
-0.02
-0.61
0.35
-0.02
90
0.0294
0.19
-0.02
-0.69
0.29
-0.01
92.5
0.0267
0.18
-0.01
-0.75
0.24
-0.01
95
0.0237
0.16
-0.01
-0.80
0.17
-0.01
100
0.0182
0.14
-0.01
-0.88
0.13
-0.01
105
0.0139
0.11
-0.01
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 17 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.