Tiziana Life Sciences (TLSA) Options Chain
NASDAQ: TLSAHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $1.19
- Put/call ratio (OI)
- 0.24
- Put/call ratio (volume)
- 0.36
- ATM implied volatility
- 348.1%
- Expected move
- ±$1.79
- Open interest (C / P)
- 2.38K / 560
TLSA options summary
The TLSA options chain for the December 18, 2026 expiration lists 3 call and 1 put contracts, with 68 days until expiration. Open interest stands at 2,380 calls and 560 puts, a put/call ratio of 0.24, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 348.1%, which implies the market expects a move of about ±$1.79 (150.2%) in Tiziana Life Sciences stock by expiration.
The most open interest sits at the $2.50 call (2.31K contracts) and the $2.50 put (560 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
TLSA options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.10 | 0.00 | 0.15 | 2.50 | 0.00 | 4.20 | 1.68 | |||||
| 0.09 | 0.00 | 4.60 | 5.00 | — | — | — | |||||
| 0.08 | 0.00 | 0.00 | 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 TLSA put/call ratio?
For the December 18, 2026 expiration, the TLSA put/call ratio based on open interest is 0.24 (560 puts vs 2,380 calls), and 0.36 based on today's volume. A ratio above 1 means more puts than calls.
What is TLSA's implied volatility?
At-the-money implied volatility for TLSA options expiring December 18, 2026 is about 348.1%, an annualized estimate of how much the market expects Tiziana Life Sciences stock to move.
How many TLSA option expiration dates are there?
TLSA has 3 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.