The U.S. Dollar Index advanced to a 10-month high on Wednesday as improving sentiment of the U.S. economy spurred bets that the stimulus program by the Federal Reserve will be reduced as soon as next Fed's meeting. The Dollar Index reached 83.747, the highest level since July 25, while the Greenback added 0.1% to $1.2911 per Euro after climbing earlier to the strongest level since April 4 at $1.2899.