Filana Therapeutics (FLNA) Options Chain
NASDAQ: FLNAHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 8
- Share price
- $0.8136
- Put/call ratio (OI)
- 0.00
- Put/call ratio (volume)
- 0.33
- ATM implied volatility
- 481.3%
- Expected move
- ±$0.5797
- Open interest (C / P)
- 491 / 2
FLNA options summary
The FLNA options chain for the October 16, 2026 expiration lists 3 call and 1 put contracts, with 8 days until expiration. Open interest stands at 491 calls and 2 puts, a put/call ratio of 0.00, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 481.3%, which implies the market expects a move of about ±$0.5797 (71.2%) in Filana Therapeutics stock by expiration.
The most open interest sits at the $2.50 call (479 contracts) and the $2.50 put (2 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
FLNA options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.01 | 0.00 | 0.05 | 2.50 | 1.35 | 2.10 | 1.67 | |||||
| 0.05 | 0.00 | 0.05 | 5.00 | — | — | — | |||||
| 0.03 | 0.00 | 0.75 | 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 FLNA put/call ratio?
For the October 16, 2026 expiration, the FLNA put/call ratio based on open interest is 0.00 (2 puts vs 491 calls), and 0.33 based on today's volume. A ratio above 1 means more puts than calls.
What is FLNA's implied volatility?
At-the-money implied volatility for FLNA options expiring October 16, 2026 is about 481.3%, an annualized estimate of how much the market expects Filana Therapeutics stock to move.
How many FLNA option expiration dates are there?
FLNA has 6 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.