Also. . .

* Salt Lake City-based Zions Bancorp’s $546-million acquisition of Sumitomo Bank of California received the final necessary approval from the Federal Deposit Insurance Corp. Zions can now move forward with buying the San Francisco-based unit of Japan’s Sumitomo Bank Ltd.

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* Orange-based Bergen Brunswig Corp., the third-largest drug wholesaler in the U.S., agreed to buy Ransdell Surgical Inc. for an undisclosed price to expand its sales of medical and surgical products.

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* Yahoo Inc., the No. 1 Internet directory firm, said it expects its operating margin to be 30% to 36% in 12 months, as it continues to boost its revenue and earnings. The company’s target at the time of its initial public offering for operating margin, which is operating profit as a percentage of revenue, was 16% to 26% by late 1998.