Brazil-based StoneCo (STNE) and U.S.-headquartered Block (XYZ) are two standout fintech players in 2025. Both companies operate integrated payment and financial service platforms tailored for small- and medium-sized merchants.StoneCo is off to a strong start this year with first-quarter adjusted earnings beating the Zacks Consensus Estimate by 6.3% and improving 17.2% year over year. Effective repricing execution and lower average funding spreads fueled a 19% increase in gross profit, reinforcing the compan ...