■ 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 — 34 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)BVN open contracts per strike for Fri, Dec 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, Dec 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Dec 18
— call IV— put IVATM ≈ 59.6% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Dec 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, Dec 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.80
-0.01
28
0.0241
0.06
-0.01
-0.20
0.77
-0.01
29
0.0264
0.06
-0.01
-0.23
0.74
-0.01
30
0.0284
0.07
-0.01
-0.26
0.71
-0.01
31
0.0303
0.07
-0.01
-0.29
0.67
-0.01
32
0.0319
0.07
-0.02
-0.33
0.64
-0.02
33
0.0331
0.08
-0.02
-0.36
0.60
-0.02
34
0.0341
0.08
-0.02
-0.40
0.57
-0.02
35
0.0347
0.08
-0.02
-0.43
0.54
-0.02
36
0.0351
0.08
-0.02
-0.47
0.50
-0.02
37
0.0351
0.08
-0.02
-0.50
0.47
-0.02
38
0.0349
0.08
-0.02
-0.53
0.44
-0.02
39
0.0345
0.08
-0.02
-0.56
0.41
-0.02
40
0.0339
0.08
-0.02
-0.59
0.38
-0.02
41
0.0331
0.08
-0.02
-0.62
0.35
-0.02
42
0.0322
0.08
-0.02
-0.65
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 25 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.