Asya Katilim Bankasi AS (ASYAB), the Istanbul-based lender caught in a feud between the government and an Islamic movement, fell to its lowest in more than three weeks as Turkish Airlines (THYAO) said it was no longer using the bank. THYAO didn't say where it had transferred its deposits. As a result, Bank Asya’s shares declined 4.1 percent at 12:24 p.m. in Istanbul. The market may be concerned that Turkish Airlines removing deposits may have a negative impact on the funding structure of the bank. However, it was known in the market that THY took out large deposits before, so the market’s probably overreacting at the moment. The bank has lost 41 percent since Dec. 16, and its price-to-book ratio of 0.43 is the lowest in an index of 16 listed Turkish lenders.