Gold markets were mixed after the Fed stopped short of indicating that a further increase in interest rates is on the cards for this year.
The dollar fell against the yen as expectations faded of the Bank of Japan delivering a radical stimulus package this week.
Oil prices fall to a three-month low above $41 a barrel as producers continue to pump more than needed.
U.S. stocks closed mixed Wednesday after the Fed left rates unchanged. Gains in shares of Apple offset declines in Coca-Cola after their earnings reports.
U.S. 10-year sovereign yields continued to gain on Wednesday, with attention on better-than-expected U.K. economic growth data and the upcoming Fed announcement.
European stocks closed slightly higher Wednesday ahead of the latest monetary policy decision from the U.S. Federal Reserve.
The Nikkei rebounded from Tuesday's sell-off as most Asian markets waffled on Wednesday before key central bank decisions and major earnings reports.
The U.S. dollar gained against the euro and the yen after the Federal Reserve left the federal funds rates unchanged on Wednesday.
Oil futures settled down 2.3 percent on Wednesday after the U.S. government reported a surprise build in weekly crude inventories.
Gold recovered Wednesday after it had briefly trimmed its gains while traders digested the outcome of a 2-day Fed meeting.
U.S. stocks closed mixed Tuesday, amid major earnings reports and lower oil prices, ahead of the week's central bank meetings.
U.S. stock index futures indicated a mixed open Thursday as traders eyed a busy day of earnings.
U.S stock-index futures rose on Wednesday, as European and Japanese stocks gained in early trade ahead of policy announcements from the U.S. Federal Reserve and the Bank of Japan.
U.S. sovereign bond yields gained on Tuesday after a $34 billion auction of five-year notes.
European markets closed higher on Tuesday as traders digested another slew of earnings and oil prices weighed.
Japanese stocks sold off on Tuesday as the yen jumped after local media indicated the government's stimulus package may not live up to expectations.
The yen hit a high against the euro and rose against the dollar as traders lower expectations of a Japanese stimulus injection.
Brent crude hit its lowest since May, pressured by concerns that a long-awaited rebalancing of the market would be delayed.
Gold rose on Tuesday, but remained hemmed into a range ahead of a two-day Federal Reserve policy meeting this week.
U.S. stocks closed lower in light volume trade Monday, with energy stocks lagging as oil prices briefly hit their lowest in nearly three months.