The US dollar index, which measures the strength of the greenback against a basket of six major currencies, fell in early trade today after US Federal Reserve announced it would broaden its purchase of corporate bonds.The yield on 10-year benchmark US Treasury note came off its lows and ended flat on Monday, after the US Federal Reserve said it would expand its purchase of corporate bonds. Asian Key indices were up in early trade today mirroring overnight gains in US equities after the US Federal Reserve took additional action to keep credit flowing and said it would buy a broad basket of corporate bonds.US Indices ended higher on Monday after the US central bank said it will expand the scope of its $750-bln emergency corporate debt loan facility and purchase individual corporate bonds.Crude Futures settled higher on Monday due to optimism over recovery in fuel demand as the Organization of Petroleum Exporting Countries and its allies were complying with a production cut deal, which outweighed fears that a second wave of COVID-19 could slow down the process of global economic recovery.Key Asian indices were up in early trade today mirroring overnight gains in US equities after the US Federal Reserve took additional action to keep credit flowing and said it would buy a broad basket of corporate bonds.On Monday, the US central bank said it would buy individual corporate bonds in the secondary market, which will continue to support credit markets during the coronavirus pandemic.Earlier, the Fed had indicated it would purchase bonds in the primary market. The central bank could buy up to $750 bln worth of corporate bonds under this facility.However, investors continued to exercise caution as rising cases of coronavirus in the US and China signal a likelihood of a second wave of COVID-19 infections.On Monday, China reportedly put curbs on several districts in Beijing after an unexpected rise in cases linked to its biggest wholesale food market.Beijing officials have reported 79 cases over the past four days after nearly two months with no new cases.