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 — 13 — is the max pain price.
Open interest by strike · Fri, Mar 19
■ calls (up)■ puts (down)F open contracts per strike for Fri, Mar 19.
Open-interest change · 2026-10-21 → 2026-10-22
Net contracts opened (up, green) or closed (down, red) per strike since the previous snapshot: where the walls are building and where they’re unwinding. Only strikes observed on both days are compared. Biggest moves: 16 +150 · 9 +146 · 14 +130 · 10 +67
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 ≈ 35.3% · 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
1.00
—
3
0.0004
0.00
—
-0.00
1.00
—
5
0.0034
0.00
0.00
-0.01
0.99
—
7
0.0086
0.00
-0.00
-0.03
0.97
-0.00
8
0.0369
0.01
-0.00
-0.06
0.91
-0.00
9
0.0637
0.01
-0.00
-0.11
0.82
-0.00
10
0.1002
0.02
-0.00
-0.20
0.69
-0.00
11
0.1377
0.03
-0.00
-0.33
0.54
-0.00
12
0.1565
0.03
-0.00
-0.48
0.39
-0.00
13
0.1504
0.03
-0.00
-0.62
0.27
-0.00
14
0.1276
0.03
-0.00
-0.74
0.19
-0.00
15
0.1005
0.02
-0.00
-0.83
0.13
-0.00
16
0.0763
0.02
-0.00
-0.89
0.09
-0.00
17
0.0571
0.01
-0.00
-0.94
0.06
-0.00
18
0.0428
0.01
0.00
-0.96
0.05
-0.00
19
0.0322
0.01
—
-0.98
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 22 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 history — nearest expiry vs price
— max pain (nearest expiry)- - delayed closeOne point per snapshot day since 2026-07-28; unobserved days are gaps, not guesses.
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.