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The U.S. Federal Reserve kept its key interest rate unchanged at 3.75–4.00% on October 28, after last month's quarter-point hike, according to Yonhap and other Korean outlets. The Fed said it is watching the effects of the previous increase, but left the door open for further hikes, with attention now on December. Fed Chair Kevin Warsh also said he pays "much more attention to the Korean economy than you think," as reported by Dong-A Ilbo. Korean stocks opened slightly higher on October 29, buoyed by the Fed's decision and expectations for strong Samsung earnings, Yonhap reports.