Caredx (CDNA) options traded 281 contracts on October 28, 2026 (208 calls and 73 puts, a put/call ratio of 0.35), compared with a 30-day average of 384. Options price a move of about ±5.3% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 78.2%
Implied move by the nearest expiration: ±5.3%
Option volume: 281 contracts (208 calls, 73 puts); 30-day average 384

Data as of October 28, 2026.

CDNA Option Breakdown

A breakdown of key statistics for each option expiration listed for CDNA. View implied volatility, volatility skew, volume, open interest, straddle premiums, and liquidity -- including bid/ask spread and NBBO bid/ask sizes. Includes links to the option chain, as well as numerous detailed charts.

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