When retail traders pile into a stock on social media, it’s usually dismissed as noise. But what if that collective chatter contains actual signal? The VanEck Social Sentiment ETF (NYSEARCA:BUZZ) bets that it does, using artificial intelligence to track online investor sentiment across millions of posts and convert that data into an investable portfolio of ... VanEck’s ETF Popped 33% By Leveraging Wisdom Of The Crowds | BUZZ