Is Advanced Drainage Systems (WMS) A Smart Long-Term Buy? Artisan Partners, a high value-added investment management firm, published its ‘Artisan Small Cap Fund’ first quarter 2021 investor letter – a copy of which can be downloaded here. A return of -5.02% was recorded by its Investor Class: ARTSX, -4.99% by its Advisor Class: APDSX, and -4.95% by its Institutional Class: APHSX for the fourth quarter of 2020, all below the Russell 2000® Growth Index that delivered a 4.88% return and the Russell 2000® Index that was up by 12.70% for the same period. You can view the fund’s top 5 holdings to have a peek at their top bets for 2021.