The Dow Jones Industrial Average finished Tuesday trade tentatively higher, with the blue-chip average posting its longest streak of gains--at four straight--since mid February. The Dow closed up 2.89 points, or less than 0.1%, at 24,360.21, but that was sufficient to represent its longest stretch of wins since the six-session period ended Feb. 16, according to FactSet data. Meanwhile, the S&P 500 index edged slightly lower, off 0.71 point, or than 0.1%, at 2,671.92, while the Nasdaq Composite Index notched a tiny gain, up 1.69 point, or less than 0.1%, at 7,266.90, virtually unchanged. Meanwhile, the benchmark of small-capitalization stocks, the Russell 2000 ended the session, up 0.5%, and less than 2% shy off its Jan. 23 record, as smaller-cap stocks showed some resiliency to worries about global trade and a strengthening dollar which has dogged the broader market. On Tuesday, Wall Street saw up-and-down action after President Donald Trump said the U.S. was abandoning the 2015-era Iran nuclear deal, which was forged by former President Barack Obama three years ago. Crude-oil prices which had also helped buoy energy-related stocks and the broader market, settled sharply lower following the Iran news.