Uber, Pinterest, Cowen and More Stock Market Movers Tuesday

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Uber jumps in premarket trading Tuesday.

Justin Sullivan/Getty Images

Stock futures were trading lower Tuesday as political tensions were rising, with House Speaker Nancy Pelosi set to arrive in Taiwan despite warnings from China.

Both S&P 500 futures and Dow Jones Industrial Average futures fell 0.6%. Nasdaq Composite futures were down 0.8%.

These are some of the stocks making notable moves in the premarket session Tuesday.