18 Pages Posted: 24 Jun 2025 Date Written: May 15, 2025 Abstract Social media has amplified the reach of financial influencers known as "finfluencers, " who share stock recommendations on platforms like YouTube. Understanding their influence requires analyzing multimodal signals like tone, delivery style, and facial expressions, which extend beyond text-based financial analysis. We introduce VideoConviction, a multimodal dataset with 6,000+ expert annotations, produced through 457 hours of human...