The iShares Preferred and Income Securities ETF (NASDAQ: PFF ) is an ETF that provides investors with exposure to preferred and hybrid securities. PFF launched in March 2007, currently has net assets of $14.8 billion, and has an expense ratioAnalyst’s Disclosure:I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not receiving comp ...