Ardelyx (ARDX) Options Chain
NASDAQ: ARDXHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Apr 16, 2027
- Days to expiration
- 187
- Share price
- $3.28
- Put/call ratio (OI)
- 0.39
- Put/call ratio (volume)
- 1.04
- Expected move
- ±$1.42
- Open interest (C / P)
- 2.05K / 790
ARDX options summary
The ARDX options chain for the April 16, 2027 expiration lists 7 call and 4 put contracts, with 187 days until expiration. Open interest stands at 2,046 calls and 790 puts, a put/call ratio of 0.39, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $3.00 strike is 60.5%, which implies the market expects a move of about ±$1.42 (43.3%) in Ardelyx stock by expiration.
The most open interest sits at the $3.00 call (741 contracts) and the $4.00 put (577 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ARDX options chain · April 16, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 2.19 | 0.70 | 3.00 | 2.00 | — | — | — | |||||
| 0.70 | 0.70 | 0.85 | 3.00 | 0.00 | 0.65 | 0.50 | |||||
| 0.38 | 0.30 | 0.50 | 4.00 | 0.85 | 1.15 | 1.04 | |||||
| 0.30 | 0.00 | 0.50 | 5.00 | 0.50 | 3.50 | 1.35 | |||||
| 0.14 | 0.05 | 0.75 | 6.00 | 2.00 | 3.60 | 2.62 | |||||
| 0.05 | 0.00 | 0.75 | 7.00 | — | — | — | |||||
| 0.03 | 0.00 | 0.15 | 8.00 | — | — | — | |||||
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 ARDX put/call ratio?
For the April 16, 2027 expiration, the ARDX put/call ratio based on open interest is 0.39 (790 puts vs 2,046 calls), and 1.04 based on today's volume. A ratio above 1 means more puts than calls.
What is ARDX's implied volatility?
At-the-money implied volatility for ARDX options expiring April 16, 2027 is about 60.5%, an annualized estimate of how much the market expects Ardelyx stock to move.
How many ARDX option expiration dates are there?
ARDX has 6 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.
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.