Sector ETFs had a pretty good month in April, with only health care ETF seeing across-the-board declines, such that the category averaged a decline of 3.21%. In fact, all three of the worst performers for the month were in the health care sector: The iShares NASDAQ Biotechnology ETF (IBB) was the worst performer, with a decline of 4.86%, followed by the SPDR S&P Health Care Equipment ETF (XHE) and iShares U.S. Pharmaceuticals ETF (IHE), down 3.29% and 3.01%, respectively. The best-performing ETFs included the SPDR S&P Semiconductor ETF (XSD), up 10.36%; the Invesco KBW Bank ETF (KBWB), up 9.39%; and the iShares U.S. Financial Services ETF (IYG), up 9.05%. When it came to flows, the Financial Select Sector SPDR Fund (XLF) pulled in $1.7 billion, while the Technology Select Sector SPDR Fund (XLK) and the Consumer Discretionary Select Sector SPDR Fund (XLY) gained $447.1 million and $372.3 million, respectively. The Health Care Select Sector SPDR Fund (XLV) saw the largest outflows, losing $795.5 million, while the iShares U.S. Real Estate ETF (IYR) gave up $620.9 million and the Utilities Select Sector SPDR Fund (XLU) lost $309.4 million. For a larger view, please click on the image above. Source: Bloomberg. Data from 03/29/2019 to 04/30/2019. ETFs chosen to represent each sector based on the most liquid ETF in each segment of the ETF.com ETF Classification System.