Walgreens Boots Alliance Inc. /zigman2/quotes/203410933/composite WBA +2.71% said Wednesday that it will expand its partnerships with Synchrony Financial /zigman2/quotes/203661733/composite SYF +1.35% and Mastercard Inc. /zigman2/quotes/207581792/composite MA +2.90% with credit cards and a prepaid debit card. The credit cards will be tied to the pharmacy retailer's newly-launched loyalty program, offering points as well as other benefits. The credit cards are expected to launch during the second half of this year. Walgreens stock was up 1.3% in Wednesday premarket trading, but has slumped 11.3% over the last year. Synchrony Financial stock is up 3.3% over the past 12 months. And Mastercard stock has gained 8.8% for the period. The S&P 500 index /zigman2/quotes/210599714/realtime SPX -0.54% is up 15.6% over the past year.