Snap is trading at $5.57, up 4.31%, alongside a broad U.S. market rally. - The S&P 500, Nasdaq and Dow are all higher. - No clear Snap-specific catalyst for the November 2 move surfaced. Snap’s social-media addiction trial is scheduled to open November 4, alongside its Q3 results, but available reporting does not connect either event to the gain. - Trading is live; volume information was not provided.