不是。Greenmail是green（美元的俚称）和blackmail（讹诈函）两个词演绎而来的。

Greenmail一般译为绿票讹诈，又译讹诈赎金、绿色勒索、溢价回购，指的是单个或一组投资者大量购买目标公司的股票。其主要目的是迫使目标公司溢价回购上述股票（进行讹诈）。出于防止被收购的考虑，目标公司以较高的溢价实施回购（给付赎金），以促使上述股东将股票出售给公司，放弃进一步收购的打算。这种回购对象特定，不适用于其他股东。

Greenmail is the practice of buying enough shares in a company to threaten a hostile takeover so that the target company will instead repurchase its shares at a premium. Regarding mergers and acquisitions, the company makes a greenmail payment as a defensive measure to stop the takeover bid. The target company must repurchase the stock at a substantial premium to thwart the takeover, which results in a considerable profit for the greenmailer.

在欧美等国家，绿票讹诈是指投机者购买公司大量股票，企图加价出售给公司收购者，或者是以更高的价格把股票卖回给公司以避免这部分股份落入公司收购者之手。

以下为相关双语示例，供参考：

The ABC company found themselves a victim of GREenmail when they realized they had bought back their stock at a much higher price.

当ABC公司以高得多的价格买回自己的股份时，发现本公司成了绿票欺诈的受害者。

Greenmail is the practice of buying larger share of a company's stock to threaten a hostile takeover and reselling it to the company at a price above market value.

绿票讹诈是指公司对购买本公司大宗股份并威胁要敌意收购的人，以高于市场价格购买其股份的行为。