PFF

iShares U.S. Preferred Stock ETF (the Fund) is an exchange-traded fund. The Fund seeks investment results, which correspond to the price and yield performance, before fees and expenses, of the S&P U.S. Preferred Stock Index (the Underlying Index). The Underlying Index measures the performance of a select group of preferred stocks listed on the New York Stock Exchange (NYSE), NYSE Arca, Inc. (NYSE Arca), NYSE Amex, NASDAQ Global Select Market, NASDAQ Select Market or NASDAQ Capital Market. The Underlying Index includes preferred stocks with a market capitalization over $100 million, which meet minimum price, liquidity, trading volume, maturity and other requirements determined by Standard & Poor’s Financial Services LLC, a subsidiary of The McGraw Hill Companies (S&P). BlackRock Fund Advisors acts as an investment adviser of the Fund. » Full Overview of PFF.A ...

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Here we provide our AYA proprietary alpha stock signals for all premium members on our AYA fintech network platform. Specifically, a high Fama-French multi-factor dynamic conditional alpha suggests that the stock is likely to consistently outperform the broader stock market benchmarks such as S&P 500, Dow Jones, Nasdaq, Russell 3000, MSCI USA, and MSCI World etc. Since March 2023, our proprietary alpha stock signals retain U.S. Patent and Trademark Office (USPTO) fintech patent protection, approval, and accreditation for 20 years. Our homepage and blog articles provide more details on this proprietary alpha stock market investment model with robust long-term historical backtest evidence.

Sharpe-Lintner-Black CAPM alpha (Premium Members Only) Fama-French (1993) 3-factor alpha (Premium Members Only) Fama-French-Carhart 4-factor alpha (Premium Members Only) Fama-French (2015) 5-factor alpha (Premium Members Only) Fama-French-Carhart 6-factor alpha (Premium Members Only) Dynamic conditional 6-factor alpha (Premium Members Only) Last update: Saturday 11 October 2025