(Bloomberg) -- In a stock market battered by trade turmoil and growing fears of an economic slowdown, retail investors are doubling down, undeterred as their losses mount. Most Read from BloombergNew York Subway Ditches MetroCard After 32 Years for Tap-And-GoDespite Cost-Cutting Moves, Trump Plans to Remake DC in His StyleLA Faces $1 Billion Budget Hole, Warns of Thousands of LayoffsAmtrak CEO Departs Amid Threats of a Transit Funding PullbackNYC Plans for Flood Protection Without Federal FundsI