[U.S. Stock Market's Three Major Indexes Open Slightly Higher, Reddit Surges Over 13%] Reported by Golden Finance, May 1: The Dow Jones Index rose 0.37%, the S&P 500 Index increased 0.36%, and the Nasdaq Composite Index gained 0.30%. The chip storage sector declined, with Western Digital dropping over 6% and SanDisk falling over 3%. Social media platform Reddit surged over 13%, as the company's second-quarter revenue guidance exceeded expectations. Online video game platform Roblox plunged over 23%, as the company significantly lowered its annual subscription guidance.