Event risk before this expiration:FOMC decision Wed, Oct 28 — 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 30
■ calls (up)■ puts (down)FSLR open contracts per strike for Fri, Oct 30.
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, Oct 30
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Oct 30
— call IV— put IVATM ≈ 107.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Oct 30
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 30
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.85
-0.54
150
0.0118
0.04
-0.54
-0.15
0.82
-0.63
152.5
0.0136
0.05
-0.63
-0.18
0.78
-0.72
155
0.0153
0.05
-0.72
-0.22
0.74
-0.80
157.5
0.0169
0.06
-0.81
-0.27
0.69
-0.88
160
0.0183
0.06
-0.88
-0.31
0.64
-0.93
162.5
0.0194
0.07
-0.94
-0.36
0.59
-0.97
165
0.0202
0.07
-0.97
-0.41
0.54
-0.99
167.5
0.0207
0.07
-1.00
-0.46
0.49
-0.99
170
0.0209
0.07
-1.00
-0.52
0.43
-0.97
172.5
0.0207
0.07
-0.98
-0.57
0.39
-0.94
175
0.0201
0.07
-0.94
-0.62
0.34
-0.89
177.5
0.0193
0.07
-0.89
-0.66
0.29
-0.82
180
0.0182
0.06
-0.83
-0.71
0.25
-0.75
182.5
0.0169
0.06
-0.76
-0.75
0.21
-0.68
185
0.0155
0.05
-0.68
-0.79
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 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.