Galectin Therapeutics (GALT) Options Chain
NASDAQ: GALTHealthcareBiotechnologyUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 6
- Share price
- $3.94
- Put/call ratio (OI)
- 0.58
- Put/call ratio (volume)
- 2.80
- ATM implied volatility
- 248.0%
- Expected move
- ±$1.25
- Open interest (C / P)
- 4.63K / 2.70K
GALT options summary
The GALT options chain for the October 16, 2026 expiration lists 4 call and 3 put contracts, with 6 days until expiration. Open interest stands at 4,632 calls and 2,699 puts, a put/call ratio of 0.58, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $5.00 strike is 248.0%, which implies the market expects a move of about ±$1.25 (31.8%) in Galectin Therapeutics stock by expiration.
The most open interest sits at the $5.00 call (2.58K contracts) and the $2.50 put (1.27K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
GALT options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.00 | 0.65 | 1.85 | 2.50 | 0.00 | 0.05 | 0.05 | |||||
| 0.10 | 0.05 | 0.10 | 5.00 | 0.40 | 1.45 | 1.38 | |||||
| 0.05 | 0.00 | 0.15 | 7.50 | 3.30 | 4.50 | 3.22 | |||||
| 0.03 | 0.00 | 1.05 | 10.00 | — | — | — | |||||
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 GALT put/call ratio?
For the October 16, 2026 expiration, the GALT put/call ratio based on open interest is 0.58 (2,699 puts vs 4,632 calls), and 2.80 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 October 16, 2026 is about 248.0%, 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.