The phrase "than the market price" means that something is being sold for a lower price than what it would typically cost in the current market. Full definition
You buy a call hoping that the stock price will rise and you can buy it for less than its market price. (getsmarteraboutmoney.ca)
No one would ever exercise options «out of the money,» because they would have to pay for the stock at a price higher than the market price. (personalprofitability.com)
This might seem strange, but generally the sum of money applicants qualify for is lower than the market price of most houses. (badcreditloanservices.com)