TBLU — Tortoise Global Water ETF ☆

Tortoise Global Water ETF (formerly Tortoise Global Water Fund) (the “Global Water ETF” or the “Fund”), a series of Tortoise Capital Series Trust (the “Trust”), seeks investment results that correspond (before fees and expenses) generally to the price and distribution rate (total return) performance of the Tortoise Global Water Net Total Return Index SM (the “Underlying Index” or the “Water ETF Index”).