In this article, I'll review the most popular fixed-income securities, the fixed-rate preferred stocks, sorted into several categories. There are 366 issues in our database that trade on primary exchanges, excluding the convertible preferred stocks, half of which are part of the biggest ETF for fixed-income securities: iShares U.S. Preferred Stock ETF (PFF). As we can see in the chart below, half of the PFF's market capitalization consists of fixed-rate preferred stocks, which also corresponds to almost 60% of the fund's holdings. This means that we are talking of around $9B in dollar