First Trust Low Duration Opportunities ETF focuses on income and capital preservation via a portfolio of mortgage-backed securities. What happenedAccording to a January 20, 2026, SEC filing, Walkner Condon Financial Advisors LLC increased its holdings in First Trust Low Duration Opportunities ETF (LMBS +0.04%) by 80,543 shares during the fourth quarter. What else to knowThis purchase raised LMBS to 2.92% of Walkner Condon’s 13F AUM after the filing. The ETF is designed to provide exposure to a diversified portfolio of mortgage-related securities while maintaining a low duration profile. Indeed, the LMBS ETF may be a good fit for investors looking to add an income-generating investment to their portfolio.