The sector median covers every company in the sector on the US market, loss-making ones included.
How to read the figures
Market capitalization is the value of all of a company's shares at the current price: the price of one share times the number of shares.
P/B (price / book) is market capitalization divided by shareholders' equity: below one means the market values the company under its accounting assets net of debt.
The current ratio is current assets divided by short-term liabilities: whether the company has enough cash and inventory to pay its nearest debts.