CDNA · CareDx, Inc.

Track CDNA — free Ask ALVIS about CDNA

$35.73 -0.02 (-0.06%)

Market Cap

$1.85B

51.66M

Options Chain

15-min delayed Underlying $35.73 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 28 contracts

Put / call OI

6.55

Put-heavy positioning

Open interest

4,688

contracts outstanding

Volume

127

traded today

Max pain

$40.00

$4.27 above spot

ATM implied vol

82.1%

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 Nov 20 114d Feb 19 205d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
1	2	—	—	$18.67		—	—	—	—	0
Call · $2.5 In the money Last $18.67 Breakeven $21.17 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $2.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	2	—	—	$18.70		$0.15	—	—	1	2
Call · $5 In the money Last $18.70 Breakeven $23.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $5 Last $0.15 Breakeven $4.85 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
1	1	0.2%	1	$20.60		—	—	—	—	0
Call · $7.5 In the money Last $20.60 Breakeven $28.10 Implied vol 0.2% Delta 1 ≈100% ITM Gamma 0 Theta -0.001 Vega 0 Open interest 1 Model this call Put · $7.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	2	—	—	$10.78		—	-0.026	338%	—	0
Call · $10 In the money Last $10.78 Breakeven $20.78 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $10 Last — Breakeven — Implied vol 338% Delta -0.026 ≈3% ITM Gamma 0.002 Theta -0.04 Vega 0.004 Open interest 0 Model this put
0	—	—	—	—		—	-0.032	283.8%	—	0
Call · $12.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $12.5 Last — Breakeven — Implied vol 283.8% Delta -0.032 ≈3% ITM Gamma 0.003 Theta -0.04 Vega 0.005 Open interest 0 Model this put
2	1	—	—	$11.00		$0.88	-0.038	238.9%	2	2
Call · $15 In the money Last $11.00 Breakeven $26.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $15 Last $0.88 Breakeven $14.12 Implied vol 238.9% Delta -0.038 ≈4% ITM Gamma 0.004 Theta -0.039 Vega 0.01 Open interest 2 Model this put
0	—	—	—	—		$0.85	-0.046	200.7%	5	12
Call · $17.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $17.5 Last $0.85 Breakeven $16.65 Implied vol 200.7% Delta -0.046 ≈5% ITM Gamma 0.005 Theta -0.038 Vega 0.011 Open interest 12 Model this put
22	1	90.5%	0.997	$9.00		$1.19	-0.123	297.1%	5	5
Call · $20 In the money Last $9.00 Breakeven $29.00 Implied vol 90.5% Delta 0.997 ≈100% ITM Gamma 0.001 Theta -0.004 Vega 0.001 Open interest 22 Model this call Put · $20 Last $1.19 Breakeven $18.81 Implied vol 297.1% Delta -0.123 ≈12% ITM Gamma 0.008 Theta -0.119 Vega 0.017 Open interest 5 Model this put
27	13	124.4%	0.953	$15.01		$1.56	-0.065	139.2%	5	6
Call · $22.5 In the money Last $15.01 Breakeven $37.51 Implied vol 124.4% Delta 0.953 ≈95% ITM Gamma 0.009 Theta -0.026 Vega 0.007 Open interest 27 Model this call Put · $22.5 Last $1.56 Breakeven $20.94 Implied vol 139.2% Delta -0.065 ≈7% ITM Gamma 0.01 Theta -0.034 Vega 0.012 Open interest 6 Model this put
70	1	119.2%	0.913	$5.60		$1.35	-0.085	117.5%	5	15
Call · $25 In the money Last $5.60 Breakeven $30.60 Implied vol 119.2% Delta 0.913 ≈91% ITM Gamma 0.015 Theta -0.039 Vega 0.013 Open interest 70 Model this call Put · $25 Last $1.35 Breakeven $23.65 Implied vol 117.5% Delta -0.085 ≈8% ITM Gamma 0.015 Theta -0.035 Vega 0.013 Open interest 15 Model this put
96	29	94.1%	0.812	$10.77		$0.76	-0.183	91.3%	3	6
Call · $30 In the money Last $10.77 Breakeven $40.77 Implied vol 94.1% Delta 0.812 ≈81% ITM Gamma 0.032 Theta -0.053 Vega 0.022 Open interest 96 Model this call Put · $30 Last $0.76 Breakeven $29.24 Implied vol 91.3% Delta -0.183 ≈18% ITM Gamma 0.033 Theta -0.047 Vega 0.022 Open interest 6 Model this put
41	14	79.3%	0.591	$3.00		$1.92	-0.41	84.9%	3	15
Call · $35 In the money Last $3.00 Breakeven $38.00 Implied vol 79.3% Delta 0.591 ≈59% ITM Gamma 0.055 Theta -0.062 Vega 0.035 Open interest 41 Model this call Put · $35 Last $1.92 Breakeven $33.08 Implied vol 84.9% Delta -0.41 ≈41% ITM Gamma 0.051 Theta -0.063 Vega 0.035 Open interest 15 Model this put
Underlying $35.73
354	20	70.8%	0.305	$0.80		$5.40	-0.719	65.5%	1	4k
Call · $40 Last $0.80 Breakeven $40.80 Implied vol 70.8% Delta 0.305 ≈30% ITM Gamma 0.055 Theta -0.05 Vega 0.033 Open interest 354 Model this call Put · $40 In the money Last $5.40 Breakeven $34.60 Implied vol 65.5% Delta -0.719 ≈72% ITM Gamma 0.058 Theta -0.041 Vega 0.033 Open interest 4k Model this put
5	1	74.4%	0.134	$1.90		$6.10	-0.853	79.7%	10	0
Call · $45 Last $1.90 Breakeven $46.90 Implied vol 74.4% Delta 0.134 ≈13% ITM Gamma 0.032 Theta -0.032 Vega 0.018 Open interest 5 Model this call Put · $45 In the money Last $6.10 Breakeven $38.90 Implied vol 79.7% Delta -0.853 ≈85% ITM Gamma 0.033 Theta -0.033 Vega 0.018 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 1217234 CUSIP 14167L103 13F (30d) 28 filings 28 filers Visit website Investor relations