In her first five days on Robinhood, WSJ lead live markets writer Gunjan Banerji quintupled the balance in her investment account and got hooked on the riskiest trade in markets. Here’s what she learned.  📷: Gabriela Bhaskar for The Wall Street Journal  Host/reporter: @Gunjan Banerji Producers: @Jacob Ohara @Julia Munslow #0dte #options #investing #stocks #wsj #wallstreetjournal #thewallstreetjournal