The "ask" price (also known as the offer price) refers to the lowest price at which a seller is willing to sell a security, such as a stock, bond, or other financial asset. It is one-half of a market's bid-ask spread, representing the difference between the highest price a buyer is willing to pay (the bid price) and the lowest price a seller is willing to accept (the ask price).

Key points about the ask price:

1. Lowest Selling Price: The minimum price a seller will accept for selling a particular security.
2. Market Dynamics: The ask price fluctuates based on market supply and demand. If there are many buyers, the ask price may rise as sellers ask for higher prices, and vice versa.
3. Part of the Bid-Ask Spread: The ask price is typically paired with the bid price. The difference between the two is called the bid-ask spread. A narrower spread often indicates a more liquid market, while a wider spread can suggest less liquidity.
4. Execution of Trades: If you're a buyer and you want to purchase a security immediately, you'll typically buy at the ask price. Conversely, if you're selling, you'll usually sell at the bid price unless you're willing to wait for a buyer who matches your ask price.

For example, if the current bid price for a stock is $50 and the ask price is $50.10, a buyer can purchase the stock immediately at $50.10.