Share Predictions
ALR TECHNOLOGIES SG LTD (ALRTF) options
The ALRTF options chain: calls and puts with price, volume, implied volatility and the Greeks, for the expiration you choose.
Close price as of Nov 06, 2026
What ALRTF options are
ALR TECHNOLOGIES SG LTD (ALRTF) options give the right, not the duty, to buy or sell ALRTF shares at a set price until a set date.
- ALRTF call
- The right to buy shares at the strike price. It gains when the stock rises.
- ALRTF put
- The right to sell shares at the strike price. It gains when the stock falls.
- Implied volatility
- The price move the market expects.
- Open interest
- Contracts still open. More usually means easier trading.
ALRTF options questions
How do I buy ALRTF options?
You need a brokerage account with options trading enabled. Find ALRTF at your broker, choose a call or a put, a strike and an expiration, and place the order. Options carry substantial risk: one can expire worthless and lose all that was paid for it.
What is the difference between ALRTF calls and puts?
A call gives the right to buy ALRTF shares at the strike price and gains when the stock rises. A put gives the right to sell them at the strike price and gains when the stock falls.
How do I choose a ALRTF expiration?
A shorter expiration costs less and reacts faster, and loses its time value sooner. A longer one costs more and gives the trade more time.
What is the implied volatility of ALRTF options?
It differs by strike and expiration, so open the ALRTF chain to read it for each contract. Higher implied volatility means the market expects larger moves, and the option costs more. It often rises before earnings.
What do in the money and out of the money mean?
An in the money option has intrinsic value: a call with a strike below the stock price, or a put with a strike above it. An out of the money option has none and costs less. An at the money option has a strike near the stock price.