■ 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 — 104 — is the max pain price.
Open interest by strike · Fri, Aug 21
■ calls (up)■ puts (down)FUTU 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 ≈ 68.5% · 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
0.76
-0.17
99
0.0296
0.06
-0.17
-0.25
0.73
-0.18
100
0.0316
0.06
-0.18
-0.28
0.69
-0.19
101
0.0333
0.06
-0.19
-0.32
0.66
-0.20
102
0.0348
0.07
-0.20
-0.35
0.64
-0.20
102.45
0.0353
0.07
-0.21
-0.37
0.62
-0.21
103
0.0359
0.07
-0.21
-0.39
0.58
-0.21
104
0.0367
0.07
-0.22
-0.43
0.55
-0.22
105
0.0370
0.07
-0.22
-0.46
0.51
-0.22
106
0.0371
0.07
-0.22
-0.50
0.47
-0.22
107
0.0368
0.07
-0.22
-0.54
0.46
-0.22
107.45
0.0366
0.07
-0.22
-0.55
0.44
-0.22
108
0.0362
0.07
-0.22
-0.57
0.40
-0.22
109
0.0353
0.07
-0.22
-0.61
0.37
-0.21
110
0.0342
0.07
-0.21
-0.64
0.34
-0.21
111
0.0330
0.06
-0.21
-0.67
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 53 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.