New York —

The Dow on Friday was on pace to hit its first record high of the year, reflecting steady optimism on Wall Street despite signs of underlying turbulence in the economy.

Stock futures were mixed Friday morning. Dow futures jumped 290 points, or 0.62%. S&P 500 futures rose 0.1%. Meanwhile, Nasdaq Composite futures fell 0.1%.

Dow futures were higher Friday after shares in UnitedHealth ( UNH ) – a significant component of the Dow – jumped 12.6% during premarket trading. Berkshire Hathaway ( BRK.B ) on Thursday afternoon revealed a stake in the healthcare giant, sending its shares higher after the closing bell. UnitedHealth shares are down 46% this year.

While the S&P 500 and Nasdaq have notched 18 and 19 record highs this year, respectively, the Dow is still chasing it

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