U.S. stocks opened lower Tuesday as investors brace for a slew of earnings in the coming days. Financials, especially, will be closely watched and JPMorgan Chase (JPM) reports after the closing bell. Already reporting earnings today was Johnson & Johnson (JNJ). It is still facing headwinds from the strong U.S. dollar. While its results were stronger than expected it did see revenue in prescription drugs fall. Meanwhile, PepsiCo (PEP) and Coca-Cola (KO) are in talks to invest in the Greek yogurt company Chobani. Chobani hopes the investment will value it at as much as $3 billion. The negotiations and potential investment come as the soft drink giants are making a push to diversify beyond carbonated beverages into healthier foods.