■ 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 — 95 — is the max pain price.
Open interest by strike · Fri, Dec 18
■ calls (up)■ puts (down)BNTX 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 ≈ 42.8% · 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
0.84
-0.02
75
0.0101
0.13
-0.02
-0.16
0.81
-0.03
77.5
0.0114
0.15
-0.03
-0.19
0.77
-0.03
80
0.0126
0.16
-0.03
-0.23
0.74
-0.03
82.5
0.0137
0.18
-0.03
-0.27
0.70
-0.03
85
0.0147
0.19
-0.03
-0.31
0.66
-0.03
87.5
0.0156
0.20
-0.04
-0.35
0.62
-0.04
90
0.0162
0.21
-0.04
-0.39
0.57
-0.04
92.5
0.0167
0.21
-0.04
-0.43
0.53
-0.04
95
0.0169
0.22
-0.04
-0.48
0.49
-0.04
97.5
0.0170
0.22
-0.04
-0.52
0.45
-0.04
100
0.0168
0.22
-0.04
-0.56
0.38
-0.04
105
0.0161
0.21
-0.04
-0.64
0.32
-0.03
110
0.0149
0.19
-0.04
-0.70
0.26
-0.03
115
0.0134
0.18
-0.03
-0.77
0.21
-0.03
120
0.0119
0.16
-0.03
-0.82
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 28 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.