While such moves are not uncommon for a famously volatile asset, one firm that's been bullish for the last two years - a period in which bitcoin (BTCUSD) prices have quadrupled - is now calling a top.

GameStop could benefit from investing in Bitcoin, exploring its potential as a Bitcoin Consumer Bank. Click here to see why ...

Shares of GameStop Corp. rose nearly 10% on Monday after Chief Executive Ryan Cohen posted a picture of himself with Michael Saylor, the executive chair of Strategy Inc., on social media over the ...