Key TakeawaysPayPal shares gained Tuesday as the electronic payments provider reported better-than-expected first-quarter profit and sales as its payment volumes and transactions increased.PayPal also boosted its full-year guidance for adjusted earnings per share.With Tuesday's gains, PayPal shares have climbed close to 11% since the start of 2024. PayPal (PYPL) shares gained close to 2% Tuesday after the electronic payments provider reported results for the first quarter that beat estimates and raised its ...