■ 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 — 120 — is the max pain price.
Open interest by strike · Fri, Mar 19
■ calls (up)■ puts (down)SII 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 ≈ 48.8% · 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
0.91
-0.01
75
0.0034
0.15
-0.02
-0.09
0.86
-0.02
85
0.0049
0.20
-0.02
-0.15
0.82
-0.02
90
0.0058
0.23
-0.03
-0.18
0.75
-0.03
100
0.0073
0.29
-0.03
-0.26
0.71
-0.03
105
0.0080
0.31
-0.03
-0.30
0.66
-0.03
110
0.0086
0.33
-0.04
-0.35
0.61
-0.04
115
0.0090
0.34
-0.04
-0.39
0.57
-0.04
120
0.0093
0.35
-0.04
-0.44
0.53
-0.04
125
0.0094
0.36
-0.04
-0.49
0.48
-0.04
130
0.0094
0.36
-0.04
-0.53
0.44
-0.04
135
0.0094
0.35
-0.04
-0.57
0.40
-0.04
140
0.0091
0.35
-0.04
-0.61
0.37
-0.04
145
0.0089
0.34
-0.03
-0.65
0.33
-0.03
150
0.0085
0.33
-0.03
-0.69
0.30
-0.03
155
0.0081
0.31
-0.03
-0.72
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 31 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.