With the S&P 500 back at record highs, Liz Ann Sonders, chief investment strategist at Charles Schwab, is overweight the technology, healthcare and financial sectors.

The technology and healthcare sectors have been the best performing S&P 500 sectors so far this year.

As for Federal Reserve policy, she doesn't expect a rate hike in September, but expects the central bank to announce a date to start unwinding its monstrous $4.5 trillion balance sheet.

She expects a rate hike in December. But even still, Sonders points out that the market will likely remain OK given all the liquidity sloshing around the system. 

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