EA Bridgeway Ultra-Small Company Market ETF (BUSM)

The EA Bridgeway Ultra-Small Company Market ETF (BUSM) invests in ultra-small U.S. companies, the segment of the stock market below typical small-cap benchmarks and often described as micro-cap. It seeks broad, diversified exposure to these very small listed businesses rather than concentrating on a handful of names.

The fund is managed by Bridgeway Capital Management, a Houston-based firm known for quantitative, statistically driven investing and for its long-running ultra-small company strategy. It is offered through the EA (Empowered Funds) ETF platform, which hosts funds from independent managers.

BUSM uses a rules-based, market-oriented approach and periodically rebalances to keep its portfolio aligned with the ultra-small company universe.