CareDx (CDNA) Options Chain

NASDAQ: CDNAHealth CareMedical SpecialitiesUSD

63.67+1.47 (+2.36%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 41
Share price: $63.67
Put/call ratio (OI): 5.27
Put/call ratio (volume): 0.96
ATM implied volatility: 72.6%
Expected move: ±$15.49
Open interest (C / P): 1.33K / 7.02K

CDNA options summary

The CDNA options chain for the November 20, 2026 expiration lists 17 call and 13 put contracts, with 41 days until expiration. Open interest stands at 1,332 calls and 7,024 puts, a put/call ratio of 5.27, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $65.00 strike is 72.6%, which implies the market expects a move of about ±$15.49 (24.3%) in CareDx stock by expiration.

The most open interest sits at the $55.00 call (453 contracts) and the $45.00 put (6.92K contracts).

Summary generated from market data by MetaCap's automated system. Methodology

CDNA options chain · November 20, 2026

CDNA calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	2.50	0.00	0.00	0.05	50.0%	2	0
—	—	—	—	—	—	10.00	0.00	0.00	0.28	50.0%	3	0
—	—	—	—	—	—	12.50	0.00	0.00	0.26	50.0%	3	0
4	7	—	21.98	30.80	35.50	15.00	0.00	0.00	0.05	50.0%	1	0
3	—	—	4.35	3.50	8.00	17.50	0.00	0.00	0.30	50.0%	1	0
0	3	—	27.60	0.00	0.00	20.00	0.00	4.50	0.68	309.4%	5	10
92	7	196.2%	27.39	39.50	44.00	22.50	—	—	—	—	—	—
92	1	171.1%	39.03	36.80	41.50	25.00	0.00	1.95	0.05	201.1%	7	9
24	2	134.4%	34.95	32.00	36.10	30.00	—	—	—	—	—	—
32	3	103.5%	28.10	27.00	30.90	35.00	0.00	1.95	0.49	137.5%	—	3
62	2	112.3%	26.20	22.30	27.00	40.00	—	—	—	—	—	—
14	1	94.9%	27.50	17.70	22.00	45.00	0.30	0.85	0.68	77.3%	20	6,924
90	2	86.3%	17.62	13.10	17.90	50.00	0.00	3.40	1.65	83.8%	5	26
453	2	83.3%	10.17	9.60	14.00	55.00	1.60	4.90	2.05	85.1%	4	36
14	7	85.1%	11.00	7.00	11.00	60.00	3.60	4.80	4.80	71.0%	1	13
CDNA $63.67
281	6	68.6%	5.74	4.10	6.40	65.00	5.30	9.20	7.70	76.5%	2	3
46	6	80.6%	3.70	2.50	6.40	70.00	—	—	—	—	—	—
108	5	82.5%	2.82	2.10	4.40	75.00	—	—	—	—	—	—
8	1	82.5%	3.67	0.10	4.40	80.00	—	—	—	—	—	—
9	1	83.5%	2.82	0.00	3.20	85.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the CDNA put/call ratio?

For the November 20, 2026 expiration, the CDNA put/call ratio based on open interest is 5.27 (7,024 puts vs 1,332 calls), and 0.96 based on today's volume. A ratio above 1 means more puts than calls.

What is CDNA's implied volatility?

At-the-money implied volatility for CDNA options expiring November 20, 2026 is about 72.6%, an annualized estimate of how much the market expects CareDx stock to move.

How many CDNA option expiration dates are there?

CDNA has 6 listed expiration dates, from Oct 16, 2026 to Nov 19, 2027.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.