Event risk before this expiration:FOMC decision Wed, Sep 16 · Jobs report Fri, Oct 2 · CPI release Wed, Oct 14 — 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 — 180 — is the max pain price.
Open interest by strike · Fri, Oct 23
■ calls (up)■ puts (down)COIN open contracts per strike for Fri, Oct 23.
Open-interest change · 2026-09-10 → 2026-09-11
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. Biggest moves: 230 +66 · 175 +36 · 170 +30 · 167.5 +22
Volume by strike · Fri, Oct 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 23
— call IV— put IVATM ≈ 66.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 23
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, Oct 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.74
-0.15
157.5
0.0086
0.20
-0.15
-0.27
0.71
-0.15
160
0.0090
0.20
-0.15
-0.29
0.69
-0.16
162.5
0.0094
0.21
-0.16
-0.32
0.66
-0.16
165
0.0097
0.22
-0.17
-0.34
0.64
-0.17
167.5
0.0099
0.22
-0.17
-0.37
0.61
-0.17
170
0.0101
0.23
-0.17
-0.39
0.58
-0.18
172.5
0.0103
0.23
-0.18
-0.42
0.56
-0.18
175
0.0104
0.23
-0.18
-0.45
0.53
-0.18
177.5
0.0104
0.24
-0.18
-0.47
0.51
-0.18
180
0.0104
0.24
-0.18
-0.50
0.48
-0.18
182.5
0.0104
0.24
-0.18
-0.52
0.46
-0.18
185
0.0103
0.24
-0.18
-0.55
0.43
-0.18
187.5
0.0102
0.23
-0.18
-0.57
0.41
-0.18
190
0.0101
0.23
-0.18
-0.59
0.39
-0.18
192.5
0.0099
0.23
-0.18
-0.62
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 57 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.