■ 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 — 8 — is the max pain price.
Open interest by strike · Fri, Aug 21
■ calls (up)■ puts (down)POET 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 ≈ 116.6% · 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
0.98
-0.01
5.5
0.0241
0.00
-0.01
-0.02
0.96
-0.01
6
0.0391
0.00
-0.01
-0.04
0.94
-0.01
6.5
0.0628
0.00
-0.01
-0.06
0.90
-0.02
7
0.0984
0.00
-0.02
-0.10
0.84
-0.02
7.5
0.1456
0.00
-0.02
-0.16
0.75
-0.03
8
0.1967
0.01
-0.03
-0.26
0.63
-0.03
8.5
0.2349
0.01
-0.03
-0.37
0.51
-0.04
9
0.2469
0.01
-0.04
-0.49
0.40
-0.04
9.5
0.2336
0.01
-0.04
-0.61
0.30
-0.03
10
0.2054
0.01
-0.03
-0.70
0.23
-0.03
10.5
0.1727
0.00
-0.03
-0.78
0.17
-0.03
11
0.1414
0.00
-0.03
-0.83
0.13
-0.02
11.5
0.1144
0.00
-0.02
-0.87
0.10
-0.02
12
0.0919
0.00
-0.02
-0.90
0.08
-0.01
12.5
0.0738
0.00
-0.01
-0.93
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.