Recent Performance Shows BSMW Lagging Behind Benchmark Index The Invesco BulletShares 2032 Municipal Bond ETF posted a -0.10% return at NAV over the past year, underperforming its underlying index, which returned 0.40%. The ETF’s 30-day SEC yield stands at 3.29%, with a total expense ratio of 0.18%. The fund holds over 1,000 municipal securities, maturing in 2032.34