Bitcoin climbed nearly 2% to just under $81,000 in Wednesday Asian morning hours, as traders awaited the Federal Reserve's rate decision later in the day. ZEC led major cryptocurrencies with an 8% jump to about $1,320, while ether gained 2% to just over $2,350. The market rebound follows Galaxy Research's recent advice to investors to accumulate bitcoin, with its head of firmwide research Alex Thorn stating that the bear market likely ended in June.