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. The estimated value of the trade was $4.03 million, based on the mean unadjusted close during the quarter. The fund’s quarter-end position in the ETF was val ...