Dutch payments giant Adyen's stock fell as much as 20% after it posted net revenue guidance and payment processing volume that were slightly weaker than expected.The company forecast net revenue growth of 20% to 22% for 2026, while analysts expected year-on-year growth at 22.8%, according to LSEG estimates."This outlook is underpinned by a strong pipeline and the continued ramp of our 2025 cohort, providing a solid foundation for the year ahead," Adyen said in its shareholder letter. "We expect ...