CSBR · Champions Oncology, Inc.

Track CSBR — free Ask ALVIS about CSBR

$5.46 -0.07 (-1.27%) At close · Jul 29

Market Cap

$75.86M

13.89M

Options Chain

15-min delayed Underlying $5.46 · at close Jul 29, 2026 Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 12 contracts

Put / call OI

6.40

Put-heavy positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$5.00

$0.46 below spot

ATM implied vol

316.8%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Nov 20 113d Feb 19 204d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	250.9%	0.942	—		$0.05	—	—	20	30
Call · $2.5 In the money Last — Breakeven — Implied vol 250.9% Delta 0.942 ≈94% ITM Gamma 0.034 Theta -0.009 Vega 0.002 Open interest 0 Model this call Put · $2.5 Last $0.05 Breakeven $2.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 30 Model this put
2	2	451.7%	0.742	$1.00		—	-0.332	181.9%	—	0
Call · $5 In the money Last $1.00 Breakeven $6.00 Implied vol 451.7% Delta 0.742 ≈74% ITM Gamma 0.052 Theta -0.045 Vega 0.004 Open interest 2 Model this call Put · $5 Last — Breakeven — Implied vol 181.9% Delta -0.332 ≈33% ITM Gamma 0.146 Theta -0.02 Vega 0.005 Open interest 0 Model this put
Underlying $5.46
2	2	238.7%	0.413	$1.20		$1.20	-0.699	172.5%	2	2
Call · $7.5 Last $1.20 Breakeven $8.70 Implied vol 238.7% Delta 0.413 ≈41% ITM Gamma 0.119 Theta -0.028 Vega 0.005 Open interest 2 Model this call Put · $7.5 In the money Last $1.20 Breakeven $6.30 Implied vol 172.5% Delta -0.699 ≈70% ITM Gamma 0.151 Theta -0.018 Vega 0.005 Open interest 2 Model this put
0	—	661.5%	0.675	—		—	—	—	—	0
Call · $10 Last — Breakeven — Implied vol 661.5% Delta 0.675 ≈67% ITM Gamma 0.039 Theta -0.074 Vega 0.005 Open interest 0 Model this call Put · $10 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	264.6%	0.181	—		—	—	—	—	0
Call · $12.5 Last — Breakeven — Implied vol 264.6% Delta 0.181 ≈18% ITM Gamma 0.072 Theta -0.021 Vega 0.003 Open interest 0 Model this call Put · $12.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	340.7%	0.224	$1.45		—	—	—	—	0
Call · $15 Last $1.45 Breakeven $16.45 Implied vol 340.7% Delta 0.224 ≈22% ITM Gamma 0.064 Theta -0.031 Vega 0.004 Open interest 1 Model this call Put · $15 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 771856 CUSIP 15870P307 13F (30d) 4 filings 4 filers Visit website Investor relations