■ 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 — 160 — is the max pain price.
Open interest by strike · Fri, Feb 19
■ calls (up)■ puts (down)FSV open contracts per strike for Fri, Feb 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, Feb 19
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Feb 19
— call IV— put IVATM ≈ 29.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Feb 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, Feb 19
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.92
-0.01
100
0.0036
0.14
-0.01
-0.07
0.90
-0.02
105
0.0045
0.17
-0.02
-0.10
0.88
-0.02
110
0.0056
0.20
-0.02
-0.12
0.81
-0.02
120
0.0082
0.27
-0.03
-0.19
0.76
-0.03
125
0.0096
0.30
-0.03
-0.24
0.71
-0.03
130
0.0110
0.33
-0.03
-0.29
0.65
-0.03
135
0.0123
0.36
-0.03
-0.35
0.52
-0.03
145
0.0140
0.39
-0.03
-0.49
0.38
-0.03
155
0.0138
0.37
-0.03
-0.64
0.32
-0.03
160
0.0131
0.35
-0.03
-0.71
0.21
-0.02
170
0.0108
0.28
-0.02
-0.83
0.17
-0.02
175
0.0094
0.25
-0.02
-0.87
0.14
-0.02
180
0.0081
0.22
-0.02
-0.92
0.09
-0.01
190
0.0058
0.16
-0.02
-0.98
0.07
-0.01
195
0.0048
0.13
-0.01
-0.99
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 16 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.