There are some key catalysts that could make this stock one of the top performers in its sector.SEI Investments (SEIC 0.61%) is not a household name in the asset management business, but it is a stock that investors should keep an eye on in 2026.Asset managers have generally performed well in the past few years, due to the now three-plus-year bull market. Basically, when the markets are up, asset management firms do well because many of their fees are based on assets under management.But SEI is not your typ ...