The market’s top sector could fly even higher

Some strategists see more upside to high-flying technology, which is leading the market as the best-performing sector in the S&P 500 this year.

Strength in the tech space has been broadly based across small, large- and mid-cap tech stocks, said Ari Wald, Oppenheimer's head of technical analysis. More granularly, strength can also be found across the sector's industry groups — semiconductors, hardware and software names.

"So this is a sign of a healthy sector; rallies led by many stocks are usually rallies that continue," Wald said Friday on CNBC's "Power Lunch."

Examining a chart of the Technology Select Sector SPDR ETF (XLK) relative to the S&P 500, Wald noted its recent breakout through five-year resistance, back to relative levels from 2002. Such a relative breakout suggests that technology, which just logged nine-straight weeks of gains, maintains its leadership throughout the course of this year, he said.

He recommends investors buy pullbacks rather than try to time them.

To be sure, tech stocks may appear "very extended" on a short-term technical basis, said Miller Tabak equity strategist Matt Maley. But in the longer-term, he is bullish, examining a chart of the Nasdaq 100 ETF (QQQ).

The QQQ is trading roughly 30 percent above its 200-week moving average, which may give some market watchers reason to believe the trade is overbought.

"But in the last five nice rallies we've had in the [QQQ], it had to get to over 40 percent above its 200-week moving average, so you could still see some more upside here," Maley said.

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Sara Eisen

Sara Eisen joined CNBC in December 2013 as a correspondent, focusing on the global consumer. She is co-anchor of the 10AM ET hour of CNBC's "Squawk on the Street" (M-F, 9AM-11AM ET), broadcast from Post 9 at the New York Stock Exchange.

In March 2018, Eisen was named co-anchor of CNBC's "Power Lunch" (M-F, 1PM-3PM ET), which broadcasts from CNBC Global Headquarters in Englewood Cliffs, N.J.

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