Following the Fed rate hike and updated rate outlook, the S&P 500 initially rose
0.4% at 14:07 ET; the 10-year U.S. Treasury yield was 4.95%, unchanged from
immediately before the Fed decision and slightly below Tuesday's 4.995%. At
14:30 ET, when a Fed speaker began remarks, the S&P was up 0.3%. During the
speech the index erased its gains; by 15:01 ET, at the end of the remarks, the
S&P had turned down 0.4% and later sank as much as 1%. The 10-year yield, near
4.95% before 14:30 ET, briefly rose above 5% before retreating below 5% and
ended the day roughly unchanged.