t The Market  
Investors, encouraged by lower interest rates, shattered the eight-day-old trading record on the New York Stock Exchange and pushed up the Dow Jones Industrial Average another 7.52 points.</br></br>Shortly after the New York exchange closed at 4 p.m. yesterday, the Federal Reserve Board gave further-momentum to the drop in interest rates that has sparked the marketÛªs climb. The nationÛªs central bank cut the discount rate it charges financial institutions that borrow from it to 10 percent from 10Û÷/2 percent.</br></br>interest rates. By itself, however, the discount rate cut does not necessarily indicate that the Federal Reserve wants rates to fall further, analysts said.</br></br>The Fed itself said the rate was cut in order to bring it ÛÏinto better alignment with short-term interest rates.Û It was the fourth time in six weeks that the Fed has lowered the rate, which stood at 12 percent at the beginning of July.</br></br>Nearly 138.5 million shares of stock changed hands on the New York Stock Exchange yesterday, as such institutions as insurance companies and pension funds continued frenetic trading. The previous record trading day whs Aug. 18, when 132.7 million shares were bought and sold.