NEW YORK, June 19 (Reuters) - Bids for the main index of subprime mortgage bonds dropped to a record low on Tuesday as concerns of losses at a hedge fund and weak housing suggest a deeper downturn for the debt.

The ABX-HE BBB- 07-1 was bid at 59.24 on Tuesday, down from levels above 60 on Monday, according to dealer indications to a portfolio manager.