Investors Consider Next Move as Signs of a Bubble Mount 1 Despite some classic signs of froth, investors are uncertain whether a downfall looms published : 2 Feb 2021 at 08:35 EMIL LENDOF/THE WALL STREET JOURNAL For once, everyone seems to agree: Much of the market looks like it's in a bubble. Shares of unprofitable companies like GameStop Corp. and AMC Entertainment Holdings Inc. are rising at a breakneck pace, propelled by a growing army of individual investors. Options activity is surging, bitcoin prices are near records and businesses are rushing to opportunistically sell stock through a flurry of initial public offerings, listings of blank-check companies and follow-on share sales.