With many traditional buyers of commercial paper ( short-term corporate debt ) still on strike , wall streeters with more wit than taste have branded the sickliest of the structured investment vehicles ( sivs ) that issue such paper to punt on longer-term assets " siv-positive " .

由于许多商业票据（短期公司债券）的传统买家仍意兴阑珊，心有余而力不足的华尔街人已将结构投资工具（siv）打入病入膏肓的黑名单，正是后者发行了这类票据来力推长期资产“siv阳性”。