BBNX · Beta Bionics, Inc.

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$15.81 -0.18 (-1.13%) At close · Jul 28

Market Cap

$704.07M

44.56M

Options Chain

15-min delayed Underlying $15.81 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 20 contracts

Put / call OI

0.03

Call-heavy positioning

Open interest

250

contracts outstanding

Volume

traded today

Max pain

$15.00

$0.81 below spot

ATM implied vol

162.4%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Oct 16 79d Jan 15 170d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	500.3%	0.982	—		$0.04	—	—	48	4
Call · $2.5 In the money Last — Breakeven — Implied vol 500.3% Delta 0.982 ≈98% ITM Gamma 0.002 Theta -0.019 Vega 0.002 Open interest 0 Model this call Put · $2.5 Last $0.04 Breakeven $2.46 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this put
0	—	312.5%	0.969	—		$0.05	—	—	4	4
Call · $5 In the money Last — Breakeven — Implied vol 312.5% Delta 0.969 ≈97% ITM Gamma 0.006 Theta -0.019 Vega 0.004 Open interest 0 Model this call Put · $5 Last $0.05 Breakeven $4.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this put
0	—	219.7%	0.947	—		—	—	—	—	0
Call · $7.5 In the money Last — Breakeven — Implied vol 219.7% Delta 0.947 ≈95% ITM Gamma 0.012 Theta -0.021 Vega 0.005 Open interest 0 Model this call Put · $7.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	182.5%	0.888	—		—	-0.163	295.4%	—	0
Call · $10 In the money Last — Breakeven — Implied vol 182.5% Delta 0.888 ≈89% ITM Gamma 0.026 Theta -0.03 Vega 0.008 Open interest 0 Model this call Put · $10 Last — Breakeven — Implied vol 295.4% Delta -0.163 ≈16% ITM Gamma 0.021 Theta -0.062 Vega 0.01 Open interest 0 Model this put
0	—	120.5%	0.821	—		—	-0.247	285.5%	—	0
Call · $12.5 In the money Last — Breakeven — Implied vol 120.5% Delta 0.821 ≈82% ITM Gamma 0.055 Theta -0.028 Vega 0.009 Open interest 0 Model this call Put · $12.5 Last — Breakeven — Implied vol 285.5% Delta -0.247 ≈25% ITM Gamma 0.028 Theta -0.077 Vega 0.013 Open interest 0 Model this put
3	2	137.9%	0.625	$2.95		—	-0.366	186.9%	—	0
Call · $15 In the money Last $2.95 Breakeven $17.95 Implied vol 137.9% Delta 0.625 ≈62% ITM Gamma 0.069 Theta -0.046 Vega 0.015 Open interest 3 Model this call Put · $15 Last — Breakeven — Implied vol 186.9% Delta -0.366 ≈37% ITM Gamma 0.051 Theta -0.06 Vega 0.015 Open interest 0 Model this put
Underlying $15.81
28	1	107%	0.4	$1.55		—	-0.634	90.8%	—	0
Call · $17.5 Last $1.55 Breakeven $19.05 Implied vol 107% Delta 0.4 ≈40% ITM Gamma 0.092 Theta -0.036 Vega 0.014 Open interest 28 Model this call Put · $17.5 In the money Last — Breakeven — Implied vol 90.8% Delta -0.634 ≈63% ITM Gamma 0.106 Theta -0.028 Vega 0.015 Open interest 0 Model this put
191	20	114.7%	0.25	$0.45		—	-0.886	73.7%	—	0
Call · $20 Last $0.45 Breakeven $20.45 Implied vol 114.7% Delta 0.25 ≈25% ITM Gamma 0.07 Theta -0.032 Vega 0.012 Open interest 191 Model this call Put · $20 In the money Last — Breakeven — Implied vol 73.7% Delta -0.886 ≈89% ITM Gamma 0.069 Theta -0.011 Vega 0.008 Open interest 0 Model this put
20	20	—	—	$0.40		—	—	—	—	0
Call · $22.5 Last $0.40 Breakeven $22.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 Model this call Put · $22.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $25 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $25 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1674632 CUSIP 08659B102 13F (30d) 24 filings 24 filers Visit website