Power Play: Betting on big-cap growth

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Stocks are lower on Wednesday as the latest Brexit polls show the leave camp gaining traction ahead of Thursday's referendum in the UK on exiting the European Union.

This VIX, or fear index is up 42 percent in June on concerns about the Brexit vote. Robert Pavlik, chief market strategist at Boston Private Wealth, tells CNBC's "Power Lunch" he expects the stay camp to prevail and is shifting his focus to improving economic conditions in the United States.

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"I maintain the weak economic growth experienced during the first half of the year will improve as we move into the third and fourth quarters. I'm encouraged by the pickup in consumer spending, by housing sales, fewer layoffs and the improved pricing environment within the energy space," Pavlik said.

His strategy is to buy when others are selling. "For those with a longer-term time horizon, I recommend starting to build a growth-orientated portfolio as many of these names will continue to deliver growth that outpaces the market even during this slow economic period," Pavlik said.

One of the names he likes now is Danaher, which is up more than 6 percent this year.