Has America FINALLY hit 'peak pumpkin'? By: CNBC.com News October 02, 2015 at 11:21 AM EDT More than a decade after Starbucks helped make "PSL" a household name, there is evidence restaurants are hitting the brakes on pumpkin. Read More >> Related Stocks: Berkshire Hathaway Chipotle Mexican Grill Shake Shack Inc Starbucks Corp