■ 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 — 125 — is the max pain price.
Open interest by strike · Fri, Aug 21
■ calls (up)■ puts (down)ARES open contracts per strike for Fri, Aug 21.
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, Aug 21
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Aug 21
— call IV— put IVATM ≈ 45.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Aug 21
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, Aug 21
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.93
-0.11
131
0.0099
0.03
-0.11
-0.07
0.92
-0.11
132
0.0109
0.03
-0.12
-0.08
0.91
-0.12
134
0.0132
0.04
-0.13
-0.09
0.90
-0.13
135
0.0145
0.04
-0.13
-0.10
0.83
-0.17
140
0.0240
0.06
-0.17
-0.17
0.79
-0.18
142
0.0293
0.06
-0.18
-0.21
0.70
-0.20
145
0.0382
0.08
-0.20
-0.30
0.48
-0.22
150
0.0464
0.09
-0.22
-0.52
0.29
-0.20
155
0.0367
0.08
-0.20
-0.71
0.18
-0.17
160
0.0244
0.06
-0.17
-0.82
0.12
-0.14
165
0.0163
0.04
-0.14
-0.88
0.06
-0.10
175
0.0082
0.03
-0.10
-0.94
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 12 strikes around the money — all 27 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.