STBF is the first ETF to be offered by PT Asset Management. The fund utilizes an actively managed, value-oriented strategy to seek investments with superior risk-reward characteristics in terms of price, interest rate sensitivity, and credit quality. The fund may invest in a broad range of fixed-income securities including US government bonds, corporate obligations, mortgage-backed and asset-backed securities, inverse floaters, collateralized debt obligations, zero-coupon bonds, and cash. The fund adviser builds the portfolio with an initial target dollar-weighted average duration of 4 years or less. The fund primarily holds investment grade securities, but it may invest up to 30% of its assets in below investment grade securities. The fund may utilize derivatives to gain exposure and hedge risks. The fund adviser evaluates new investments, sectors, and allocations on a daily basis. Due to the fund's strategy, it may engage in active and frequent trading.