Summary Box: Rates slide as investors eye stocks, questions about European debt remain

Summary Box: Interest rates fall in bond market

WHAT KEPT RATES DOWN? Investors continued to buy Treasurys even as concerns over European debt levels, particularly with Greece, eased.

WHY IS GREECE A CONCERN? Greece must get its budget under control or else its fiscal troubles could undermine Europe’s common currency, the euro, and destabilize debt markets.

WHAT ELSE AFFECTED PRICES? Upbeat earnings reports and a fresh round of corporate dealmaking in the U.S. led some investors into stocks.