Stock futures were little changed Tuesday evening as Wall Street awaits a Wednesday speech from Federal Reserve Chair Jerome Powell that may give further insight into future rate hikes. Futures tied to the Dow Jones Industrial Average fell 19 points, or 0.06%. S&P 500 futures and Nasdaq 100 futures slipped 0.09% and 0.17%, respectively. On Wednesday, Chair Jerome Powell will give a speech at the Brookings Institution that may give insight into the central bank's thinking on future increases. Wall Street will also be watching for economic data that will give more information on the state of the U.S. labor market and the consumer.

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