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Kmart Earnings Up 10% in 2nd Quarter: The giant Troy, Mich.-based retailer said earnings rose in the three months ended July 31 to $162.8 million, or 81 cents a share, compared to $148 million, or 74 cents a share, in the same quarter of 1990. Revenue totaled $8.4 billion, up 8% from the year-ago quarter. Kmart Chairman Joseph Antonini said strong early second-quarter sales helped offset a weaker performance in July, when sales of big-ticket items were sluggish. He said sales at Kmart subsidiaries were especially encouraging. Kmart operates Kmart discount stores and is the parent of Pay Less Drug Stores, Builders Square, Waldenbooks and Pace Membership Warehouses.