Airbnb shares pop 15% on better-than-expected earnings and revenue / Airbnb shares drop 12% as company flags weakening US demand / Airbnb shares drop 14% due to fewer American guests / Airbnb shares drop 14% on earnings miss as company warns of slowing U.S. demand / Airbnb shares fall 14%, as travel industry grapples with grim forecasts / Airbnb shares drop 12% amid growing backlash in Spain: Company cites weakening US demand / Investors in Airbnb arbitrage business allege they were defrauded in scheme promising 'higher returns than the stock market'