This ‘long-short’ investor cashes in as airline, hotel and casino stocks crumble By: MarketWatch April 20, 2020 at 10:51 AM EDT Mitch Rubin’s RiverPark Long/Short Opportunity Fund is up about 15% this year, while benchmark indexes are in the red. Read More >> Related Stocks: Alphabet-A Alphabet-C Amazon.com Apple Boyd Gaming Corp Carnival Corp Facebook Harley-Davidson Iron Mountain MGM Resorts International Microsoft Norwegian Cruise Ord Penn Entertainment Inc Royal Caribbean Cruises Ltd Wynn Resorts