Stocks react to PPI, PepsiCo earnings, Conagra outlook, Carvana stock: Trending tickers

The S&P 500 is boosted as stocks react to cooling PPI data. PepsiCo reports a significant bump in quarterly sales figures year-over-year. Conagra Brands share a downbeat full-year forecast. Carvana stock slips following a downgrade by JPMorgan analysts. Yahoo Finance Live checks out several stocks trending after this morning's opening.