The VanEck Preferred Securities ex Financials ETF (NYSEARCA:PFXF) has quietly become one of the better-performing income vehicles of the past year, returning 21% over the trailing 12 months and 8% year to date through May 7. With shares around $18.70 and a 30-day SEC yield in the 6.59% to 6.76% range, PFXF is doing exactly ... PFXF’s 6.7% Yield Is Safe—Unless This Credit Signal Flips First