Galectin Therapeutics (GALT) Options Chain
NASDAQ: GALTHealth 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
- $3.94
- Put/call ratio (OI)
- 0.03
- Put/call ratio (volume)
- 0.08
- ATM implied volatility
- 135.9%
- Expected move
- ±$1.77
- Open interest (C / P)
- 919 / 25
GALT options summary
The GALT options chain for the November 20, 2026 expiration lists 2 call and 1 put contracts, with 40 days until expiration. Open interest stands at 919 calls and 25 puts, a put/call ratio of 0.03, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $5.00 strike is 135.9%, which implies the market expects a move of about ±$1.77 (45.0%) in Galectin Therapeutics stock by expiration.
The most open interest sits at the $7.50 call (890 contracts) and the $5.00 put (25 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
GALT options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.18 | 0.30 | 0.70 | 5.00 | 0.90 | 1.75 | 2.24 | |||||
| 0.04 | 0.00 | 0.10 | 7.50 | — | — | — | |||||
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 GALT put/call ratio?
For the November 20, 2026 expiration, the GALT put/call ratio based on open interest is 0.03 (25 puts vs 919 calls), and 0.08 based on today's volume. A ratio above 1 means more puts than calls.
What is GALT's implied volatility?
At-the-money implied volatility for GALT options expiring November 20, 2026 is about 135.9%, an annualized estimate of how much the market expects Galectin Therapeutics stock to move.
How many GALT option expiration dates are there?
GALT has 5 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.
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.