BNY Mellon Short Term Municipal Bond Fund Class D (DSIBX) is an open-end mutual fund that seeks to maximize current income exempt from federal income tax to the extent consistent with the preservation of capital. The fund normally invests substantially all of its net assets in municipal bonds that provide income exempt from federal personal income tax, principally those with remaining maturities or mandatory puts of five years or less, while generally maintaining a dollar-weighted average portfolio maturity of less than five years; its portfolio primarily comprises revenue notes/bonds, general obligation notes/bonds, other tax-exempt securities, and lease rental bonds. Managed by BNY Mellon Investment Adviser, Inc. with sub-advisory from Insight North America LLC, the fund targets individual and institutional investors seeking tax-exempt income with limited interest-rate sensitivity in the U.S. municipal national short category.
Launched on April 30, 1987, and domiciled in the United States, the fund operates primarily within U.S. markets, with approximately 90% of assets in U.S. bonds, 7-8% in cash equivalents, and minor non-U.S. bond exposure; total net assets stand at around $130 million, with Class D share class size near $96 million. Portfolio managers Thomas Casey (since 2011) and Jeffrey Burger, CFA (since 2012), oversee investments focused on investment-grade municipal securities issued by state and local governments to fund public projects. The fund maintains a net expense ratio of 0.49% under a contractual fee waiver through August 1, 2026 (direct expenses capped at 0.39% excluding certain fees), with a minimum initial investment of $2,500 and portfolio turnover around 16-32%.
Recent developments include sustained portfolio performance amid Federal Reserve interest rate adjustments, with Class I shares returning 1.55% for Q3 2025 (ended September 30), driven by municipal bond upswings mirroring U.S. Treasuries. BNY Mellon extended the expense limitation agreement through August 1, 2026, and reported year-to-date NAV growth to $12.92 as of November 14, 2025, with a 30-day SEC yield of 2.42%. In a related strategic move within BNY Mellon's municipal offerings, shareholders of the BNY Mellon National Short-Term Municipal Bond Fund approved its conversion to a new ETF in early 2025, signaling broader product evolution in the short-term muni segment.