The Dow Jones rose 47.33 points to close at 5,539.45, breaching 5,500 for the first time. The blue-chip index is up 8.25 percent this year. The Dow spent most of the day at slightly depressed levels but shot up in the final hour on the strength of computer-driven buying programs. Trading was fairly heavy at 469.65 million shares. The NYSE composite index rose 2.83 to 349.15, and the Standard & Poor's 500 composite was up 6.13 to 656.06.The AMEX market value index climbed 2.07 to 564.66. The Nasdaq composite index rose 8.29 to 1093.17 breaking its record high of 1,089.08 set last Tuesday. Gold closed in London at $408.05 off $5.10.