“投机资本”常见的英文表达是 speculative capital 。
“speculative”意为“投机的；推测的” ，“capital”表示“资本；资金” ，二者组合准确传达了“投机资本”这一概念。例如：Speculative capital often flows into areas with high potential returns but also high risks.（投机资本常常流入具有高潜在回报但同时也存在高风险的领域。）