Rhythm Pharmaceuticals (RYTM) Options Chain
NASDAQ: RYTMHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $90.78
- Put/call ratio (OI)
- 4.75
- Put/call ratio (volume)
- 3.27
- Expected move
- ±$17.64
- Open interest (C / P)
- 16 / 76
RYTM options summary
The RYTM options chain for the November 20, 2026 expiration lists 9 call and 5 put contracts, with 40 days until expiration. Open interest stands at 16 calls and 76 puts, a put/call ratio of 4.75, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $90.00 strike is 58.7%, which implies the market expects a move of about ±$17.64 (19.4%) in Rhythm Pharmaceuticals stock by expiration.
The most open interest sits at the $105.00 call (8 contracts) and the $95.00 put (61 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
RYTM options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 85.00 | 0.20 | 4.50 | 1.65 | |||||
| — | — | — | 90.00 | 2.75 | 6.70 | 4.90 | |||||
| 4.65 | 1.95 | 5.80 | 95.00 | 7.10 | 9.70 | 7.50 | |||||
| 2.75 | 1.00 | 4.50 | 100.00 | 9.30 | 13.40 | 11.20 | |||||
| 2.30 | 0.00 | 2.50 | 105.00 | — | — | — | |||||
| 7.71 | 0.00 | 3.30 | 110.00 | 17.70 | 22.00 | 22.50 | |||||
| 13.89 | 0.00 | 0.00 | 115.00 | — | — | — | |||||
| 6.25 | 0.00 | 2.70 | 120.00 | — | — | — | |||||
| 7.82 | 0.00 | 0.00 | 130.00 | — | — | — | |||||
| 2.70 | 0.00 | 0.00 | 155.00 | — | — | — | |||||
| 2.10 | 0.00 | 0.00 | 160.00 | — | — | — | |||||
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 RYTM put/call ratio?
For the November 20, 2026 expiration, the RYTM put/call ratio based on open interest is 4.75 (76 puts vs 16 calls), and 3.27 based on today's volume. A ratio above 1 means more puts than calls.
What is RYTM's implied volatility?
At-the-money implied volatility for RYTM options expiring November 20, 2026 is about 58.7%, an annualized estimate of how much the market expects Rhythm Pharmaceuticals stock to move.
How many RYTM option expiration dates are there?
RYTM has 7 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.