Shift4 Payments, Inc. (FOUR) operates in the Software - Infrastructure industry, providing payment processing and technology solutions. While its core business activities are generally permissible under Shariah principles, the company's financial ratios, particularly the debt ratio of 36.58%, result in non-compliance across major screening standards. No significant non-compliant revenue streams were identified, but purification of 3.73% is required for incidental interest income. The stock is excluded from all major Shariah indices due to leverage concerns. Overall, it is classified as NON_COMPLIANT, with a compliance quality rating of B.