The stock market recouped some of Thursday's broad losses with a modest rally in slackened trading Friday. The Dow Jones average of 30 industrials, down 24.35 on Thursday, rose 9.06 to 2,149.89. That left the average with a net loss for the week of 33.61 points. Big Board volume totaled 146.30 million shares, against 196.54 million in the previous session. Advancing issues outnumbered declines by about 7 to 5 in nationwide trading of New York Stock Exchange-listed stocks, with 858 up, 595 down and 519 unchanged. Volume on the floor of the Big Board came to 146.30 million shares, down from 196.54 million in the previous session. Nationwide, consolidated volume in NYSE-listed issues, including trades in those stocks on regional exchanges and in the over-the-counter market, totaled 173.07 million shares. Thursday's decline hit hardest among stocks that were known or rumored to be targets of takeovers and buyouts. The selling came as increasing numbers of analysts voiced concern over the amounts of debt being built up in corporate America. But once having delivered that message, investors seemed willing to look again today at individual deals that are likely to go through, presenting the opportunity for trading profits. Also, analysts said the overall market got a lift from General Motors, which issued a third quarter earnings report Thursday that was much better than expected. GM shares, up 2~ on Thursday, climbed another 3] to 83~ on turnover of more than 3.6 million shares Friday. Among big takeover targets, RJR Nabisco gained 3 to 85; Kraft was up 2 at 96{, and Pillsbury rose | to 59{. The investment firm of Kohlberg Kravis Roberts & Co., a bidder for RJR Nabisco, said its plan does not call for the sale of large parts of the company and its financing is not conditioned on such sales. Rollins Environmental led the active list, tumbling 2} to 10~. The company reported earnings for its fiscal fourth quarter ended Sept. 30 of 7 cents a share, down from 14 cents in the comparable period a year earlier. Teledyne rose 10[ to 333}. The company said directors authorized it to buy back as many as 1 million of the approximately 11.4 million shares it has outstanding. Coastamerica, which agreed to be acquired by American Hoist & Derrick for $10.50 a share, jumped 1{ to 10[. As measured by Wilshire Associates' index of more than 5,000 actively traded stocks, the market increased $10.83 billion, or 0.40 percent, in value. The NYSE's composite index of all its listed common stocks gained .62 to 156.79. Standard & Poor's industrial index rose 1.49 to 320.67, and S&P's 500-stock composite index was up 1.25 at 278.53. The NASDAQ composite index for the over-the-counter market added 1.02 to 382.79. At the American Stock Exchange, the market value index closed at 301.75, up 1.11.