Exchange traded funds that track preferred shares have been popular in recent years with income-starved investors, but the ETFs have pulled back over the past month along with the stock market.

Preferred shares and ETFs that invest in them had been performing well before June’s slide.

The $7.9 billion iShares S&P U.S. Preferred Stock Index Fund (NYSEArca: PFF) was up 4.1% year to date as of June 10, according to Morningstar.

The ETF had a 30-day SEC yield of 5.6% at the end of May, according to manager BlackRock.

Preferred shares usually have higher dividends but don’t carry voting rights. They also take priority over common stock in a company bankruptcy.

The iShares ETF has a heavy concentration in the financial sector at about 85% of the portfolio.