Last mentioned: Mar 23, 2026
Despite broader market volatility, select small-cap and mid-cap stocks have emerged as year-to-date leaders, signaling a strategic shift in investor sentiment. This rotation suggests that capital is moving away from overextended mega-cap tech and into high-growth niches within the Russell 2000 and S&P 400 indices.
This page surfaces every story mentioning S&P 400 across our finance coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running finance beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where S&P 400 was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |