■ 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 — 130 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)TEAM open contracts per strike for Fri, Sep 18.
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, Sep 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 18
— call IV— put IVATM ≈ 58.9% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 18
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, Sep 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.94
-0.04
120
0.0038
0.05
-0.05
-0.06
0.92
-0.06
125
0.0051
0.07
-0.06
-0.08
0.89
-0.08
130
0.0068
0.09
-0.08
-0.11
0.85
-0.10
135
0.0086
0.11
-0.10
-0.15
0.79
-0.12
140
0.0104
0.13
-0.12
-0.21
0.73
-0.14
145
0.0121
0.15
-0.14
-0.27
0.66
-0.15
150
0.0134
0.17
-0.15
-0.34
0.59
-0.16
155
0.0143
0.18
-0.17
-0.41
0.52
-0.17
160
0.0147
0.19
-0.17
-0.48
0.45
-0.17
165
0.0146
0.18
-0.17
-0.56
0.38
-0.16
170
0.0140
0.18
-0.16
-0.62
0.32
-0.15
175
0.0131
0.17
-0.15
-0.69
0.26
-0.14
180
0.0119
0.15
-0.14
-0.74
0.22
-0.13
185
0.0106
0.14
-0.13
-0.79
0.18
-0.11
190
0.0093
0.12
-0.11
-0.83
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 47 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.