All 30 Dow Jones Industrial Average components are rallying by at least 1% in premarket trade Tuesday, as hopes for more stimulus in China welcomed U.S. investors back from the long Labor Day weekend. The biggest Dow gainer is Procter & Gamble Co.'s stock , which is up 2.3% premarket after an upgrade at SunTrust Robinson Humphrey, which said valuation was "too compelling to ignore." McDonald's Corp.'s stock was up the least at 1.3%. Among the more active Dow stocks, Apple Inc. rose 2%, General Electric climbed 2%, Walt Disney Co. tacked on 2.1% and Intel Corp. advanced 1.9%. Dow futures surged 270 points, after losing about 541 points last week.
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