$TSLA — S&P 500 additions (Bloom Energy, Evercore(?), Illumina) and a bullish pop in Tesla set the large-cap tone, while a cluster of microcap and small-cap names produced extreme, low‑liquidity moves. Passive-flow mechanics, volume-driven short-covering, and divergent large‑ vs. small‑cap signals are the dominant threads investors should parse as markets reopen.