Stock index futures are all up about 0.25% ahead of the Fed's 2 PM ET policy decision announcement, with consensus on whether the taper will be initiated at about a 50/50 split.
Europe's up nearly 1% on the session, and the Nikkei closed 2% higher overnight.
The 10-year Treasury yield is up one basis point at 2.86% and gold is little-changed.
Meanwhile, Bitcoin is in free fall to below $500 after BTC China - the largest Bitcoin [[BITCOIN]] exchange in the country - has temporarily stopped taking yuan deposits. BTC's CEO Bobby Lee cites a Monday PBOC meeting where officials ordered about 10 major third-party payment processors to stop working with Bitcoin exchanges.