Stable sector is headed for correction, experts say
Stable sector is headed for correction, experts say

It's been another rough month for U.S. investors, with all of the country's major indexes mostly flat since the beginning of May. To deal with the ups and downs that has plagued the market this year, many weak-stomached stock pickers have moved into more defensive industries, including the utilities sector, which is often considered the most defensive sector of them all.

Since January, the S&P 500 Utilities Index has climbed 10 percent. It's been the best-performing sector by a huge margin-the second best performer is energy, with a 6.4 percent gain-and it has dramatically outperformed the S&P 500 itself by nearly 7 percentage points.

Karalyn Carlton, founder and managing director of Seattle-based Carlton & Company Financial, isn't surprised to see the sector outperforming in today's volatile stock market environment. Utilities play an important part in her portfolios, and it's a must-own for her retired clients who are in need of income.

"It's a staple for a portfolio, especially income ones," she said. "It has dividends, modest growth, and it's less volatile than other equities."

Income seekers and defensive investors have always had an affinity for electric utilities. Today, many have yields of 3.5 percent to 5 percent and have annual capital gains of around 3 percent. Over the long term, investors can get an annual total return of 6.5 percent to 10 percent, said Carlton.

Part of the reason it's an attractive space for retirees is that it's so reliable. It collects recurring revenues every month in good times and bad. People need to heat and power their homes, and while weather can affect how much electricity is used, usage is generally consistent year after year.

Read More More dividends being added in this sector than any other

While it might seem as though investing in this sector is a no-brainer for older and more conservative investors, people can't jump into this blindly. As well as the sector has done, those positive returns could turn negative quickly if interest rates start to rise.

"This is a big deal," said Christopher Muir, an equity analyst with S&P Capital IQ. "If interest rates change quickly, utilities won't have time to react, and they'll suffer."

Late last year, investors saw just how damaging a rate change can be. Between January and April 2013, the sector rose 16.3 percent. Then, in May, the Federal Reserve announced that it would likely start tapering its bond purchases. The 10-year Treasurys' yield quickly climbed, hitting 2 percent on May 22 and jumping to 3.04 percent at the end of last year. Over the last eight months of the year, the utilities index plummeted by 8.2 percent.