认购权证是股票衍生性金融商品，指发行人发行一定数量、特定条件的有价证券，投资者付出权利金持有该权证后，有权在某一特定期间（美式权证）或特定时点（欧式权证），按一定的履约价格，向发行人买进一定数量指标的股票。 (JNDX)认购权证（Call Warrant），又称为看涨权证、买权权证。
指数认购权证 index call warrant ; haha index call warrant
跨价认购权证 Call-spread warrant ; spread warrant
地区性指数认购权证 regional index call warrant ; haha regional index call warrant
分为认购权证 call warrants
附认购权证债券 Bonds With Warrants
认购认股权证 Call warrant
重设型认购权证 Reset Warrant
上限型认购权证 Knock-out call warrant
股本认购认股权证 Equity Call Warrants
Call-Warrants is an important part of equity warrants bonds, whose market function have an important sigificantion to the whole market.
其中,认购权证作为当前股本权证的一个重要组成部分,其市场功能表现对于整个市场具有重要的意义。
参考来源 - 认购权证微观市场功能的实证研究 （研究生论文）·2,447,543篇论文数据，部分数据来源于NoteExpress
本文研究了我国内地认购权证的发行对标的股票流动性和风险的影响。
In this paper we study the influence of the issue of call warrants on the underlying stock's liquidity and risk.
我们发现少数认购权证和大部分认沽权证与标的股票价格、股票市场指数存在异常联动关系。
We find a small number of call warrants and a large proportion of put warrants behave eccentrically in interaction with the underlying stocks as well as the stock market indices.
但由于股市整体上涨趋势等客观原因，其盈余管理最终未能阻止认购权证的行权，股权遭到了稀释。
Due to the big bull market, HDIS fail to keep the price lower than the threshold, and investors exercise the warrants, as a result, the control right has been diluted.
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