But even with the Dow under pressure, a few stocks managed to post some sizable gains. Caterpillar ( CAT -2.33% ) led the Dow's gainers, rising 1.2% as the company announced that it would execute another $1 billion under an accelerated stock repurchase transaction, working with France's Societe Generale to facilitate the purchase. The transaction marks the second time Caterpillar has used the tactic, with a previously announced $1 billion repurchase in April having been completed last month. The moves show how healthy Caterpillar's cash flow is, but it's unclear how well they fit with the company's less optimistic assessment of its long-term earnings outlook. Verizon ( VZ 1.67% ) posted gains of 0.9% even as the leader of Canada's Industry Ministry met with leaders of various Canadian mobile operators in order to discuss Verizon's potential move into the Canadian market.