NEW YORK (Reuters) - Treasuries rebounded on Tuesday after three straight losing sessions, as waning confidence in the U.S. stock market lifted safe-haven bonds and helped produce a strong auction of three-year notes.

NEW YORK (Reuters) - U.S. regulators are probing certain practices around "quote stuffing," where large numbers of rapid-fire stock orders are placed and canceled almost immediately, Securities and Exchange Commission Chairman Mary Schapiro said on Tuesday.

LONDON (Reuters) - European shares fell on Tuesday, stubbing out a two-week rally, with banks hit by concerns over the sector's health and the impact of capital reform, while miners dropped on renewed jitters over Australia's tax plan.

LONDON (Reuters) - Britain's top share index fell from a four-month closing high and ended a seven-session winning run on Tuesday, led lower by Barclays after management changes and miners on concerns over Australia's tax plan.

LONDON (Reuters) - Gold erased early losses to rise to its highest since late June on Tuesday as investors returning from the U.S. Labor Day holiday bought the metal as a haven amid concerns over the health of the European banking system.

NEW YORK (Reuters) - The top U.S. securities regulator said on Tuesday that the follow-up report on what might have caused the May "flash crash" is expected by the end of September.

LONDON (Reuters) - European shares extended falls in afternoon trade on Tuesday, with banks down on renewed concerns over the sector's health and the impact of capital reform, and as stocks on Wall Street fell further.

TOKYO (Reuters) - PIMCO, which launched its first active equities fund in April, is planning to offer four of five more new global equities strategies in the next few years, an executive in the company's equities business said on Tuesday.

PARIS (Reuters) - European stocks were down around midday on Tuesday, halting a brisk two-week rally as banking stocks fell on reignited concerns over capital reform and the sector's recent stress tests.

LONDON (Reuters) - MSCI Inc has launched a series of 23 new environmental and sustainability share indexes, the investment analysis and market index company said on Tuesday.