The offer price, also called ask price, offer, or ask, is the price a seller says they will accept.

The seller may qualify the indicated price as firm or negotiable. Firm means the seller is implying that the price is fixed and will not change.

In a "buy/sell" situation, the term ask price is used in contrast to the term bid price. The difference between the bid price and the ask price is called the spread.

In the context of trading stocks on a stock exchange, the ask price is the lowest price that a seller of a stock is willing to accept for a given value. For securities on the over-the-counter market, the ask price is the best trading price at which a market maker is willing to sell a stock.[1]​.

In a mutual fund, the sales price is a net asset value plus any sales charges. It is also called the asking price, offer price or ask.[1]​.

The selling price is the lowest price that a seller of a product is willing to accept for that product.[1]​.

In an auction the sale price is the reserve price. Some auctions may not have such a price. This price is the minimum that the seller will agree to for the object being sold.