Media reports say Amazon.com Inc.'s /zigman2/quotes/210331248/composite AMZN +2.15% big Prime Day shopping event will take place on Oct. 13, but the e-commerce giant hasn't confirmed the date. Prime Day, which usually takes place over the summer, has been delayed due to the coronavirus pandemic. The event has taken place over two days in the past. CNET sources didn't specify how long Prime Day will be this year, though Amazon has said it will be in the fourth quarter. Amazon stock has rallied more than 69% for the year to date while the S&P 500 index /zigman2/quotes/210599714/realtime SPX -0.16% is up 2.6% for the period.