According to @charliebilello, the Russell 2000 Index recorded its first all-time high since November 2021 this week, highlighting a potential small-cap breakout to monitor; source: X post on Sep 21, 2025 and linked YouTube video https://www.youtube.com/watch?v=nuDXtHmKH6k&t=861s. The post explicitly raises the question of whether the small-cap breakout is underway, signaling a watchpoint for market participants; source: X post by @charliebilello on Sep 21, 2025.