Best Small Cap Etfs For 2025 Usa. One of the best index funds for tracking the s&p 600 is the spdr portfolio s&p 600 small cap etf (spsm 0.04%). Its minuscule expense ratio of 0.03% is one of the best in.

One of the best index funds for tracking the s&p 600 is the spdr portfolio s&p 600 small cap etf (spsm 0.04%). Here’s the list of the best active etfs today broken down by the three main asset classes that are represented in many investors’ portfolios: