Are IPO investors rational? Evidence from closed-end funds

Why buy a closed-end fund at IPO, when it is likely to trade at a discount in a few months’ time? One theory suggests that buying a new fund is justified by an initial period of investment outperformance. A second theory is that new funds are launched to provide access to assets that are temporarily illiquid and to exploit the subsequent liquidity gain while a third theory asserts that buyers of new issues are not fully rational but are influenced by time-varying sentiment. This paper tests the three theories using data from UK-traded closed-end equity-fund IPOs over 1984–2006. The empirical results provide strong support for the influence of sentiment but provide little or no support for the two other theories.     

媒体报道与IPO绩效:信息不对称还是投资者情绪?——基于创业板上市公司的研究

本文以创业板开板以来至2011年4月底的所有创业板IPO公司为研究样本,通过讨论IPO前不同时期的媒体报道情况对IPO绩效的影响,探讨了媒体在IPO过程中所扮演的角色。在控制样本自选择偏差后,发现招股公告日至上市日之间的短期媒体报道与IPO抑价和首日换手率均呈显著的正相关关系,符合投资者情绪假说;而招股公告日前一年的长期媒体报道与IPO抑价也显著正相关,但是和首日换手率之间的关系并不显著,信息不对称假说未得到支持。本文认为信息不对称假说未得到支持可能与市场以情绪投资为主、忽视价值投资的现象有关。     

我国开放式和封闭式基金绩效比较的实证研究

近年来我国新设立的开放式基金远远多于封闭式基金。在数量迅速增长的情况下，开放式基金能否取得优于封闭式基金的绩效受到市场的普遍关注。本文选取了10家基金管理公司，每家公司各选一只开放式基金和一只封闭式基金，从收益率、风险调整后的绩效和择时能力三个方面比较了2004年1月至2005年4月期间开放式基金与封闭式基金的绩效。实证结果显示，在我国目前情况下，开放式基金的绩效略高于封闭式基金，但并不存在显著的差异．     

投资者非理性行为是动量效应产生的原因吗?——来自互联网金融论坛的证据

动量效应是行为金融研究中重要的市场异象,然而目前各市场因素并不能完全解释其来源。在大数据背景下,本文通过挖掘金融论坛的结构化和非结构化数据,深入研究投资者微观行为与动量效应的关系,发现市值规模、账面市值比和行业等市场因素仅能解释约30%的动量效应,而基于行为金融的投资者非理性因素——投资者情绪、投资者关注度和情绪传播度,都是动量效应形成的重要因素,在市场因素的基础上还能继续解释35%左右的动量效应。研究结论对理解动量效应的形成机制和投资实践中网络信息的价值有重要意义。     

Why Does Performance Persistence Vary Among Closed-End Funds?

This study extends the research on closed-end fund performance persistence by investigating whether the persistence of both net asset value (NAV) and market price returns of U.S. registered closed-end funds is related to various fund characteristics. The sample consists of 505 closed-end funds, which are investigated over the period from January 1976 to December 1996. The analysis tests whether persistence is related to the fund characteristics size, goal, management fees, turnover, fund family membership, fund experience, and the exchange on which a fund is traded. The results vary across holding periods used to calculate persistence but are similar with respect to the NAV and market price returns. Funds with lower expense ratios and funds traded on the NYSE show more persistence of strong NAV and market price performance.     

赎回权的价值与封闭式基金折价率研究——兼论“封转开”方案设计

本文比较了封闭式基金与对等的开放式基金之间的差异，认为缺少赎回权是封闭式基金产生折价的主要原因。在一个具有完全择时能力的封闭式基金投资者的假设条件下，本文推导并证实了赎回权价值上限和隐含折价率下限计算公式。基于赎回权，本文提出了“封转开”方案设计的一个新思路，希望对市场上正在热烈讨论的“封转开”问题有所启示。     

Explaining the Short‐ and Long‐Term IPO Anomalies in the US by R&D

Abstract:   Financial scholars who research the initial underpricing and long‐term underperformance of IPOs generally attribute these phenomena to information asymmetry and investors' misevaluations. Here, we identify, on a sample of 2,696 US IPOs issued during 1980–1995, a widespread source of information asymmetry and valuation uncertainty—the R&D activities of issuers—and document that these activities significantly affect both the initial underpricing of IPOs (R&D is positively correlated with underpricing) and their long‐term performance (R&D is positively related to long‐term performance). Given the pervasiveness and constant growth of firms' R&D activities in modern economies, our identification of R&D as a major factor affecting IPO's performance contributes to the understanding of this important economic and capital market phenomenon.     

Investor sentiment and the risk–return relation: A two-in-one approach

Traditional finance theory posits a positive risk–return relation, but empirical evidence is inconclusive. Retail investor sentiment has long been viewed as a distorting factor, while more recently institutional investor sentiment is thought to play a role. We examine the separate and joint impacts of retail and institutional investor sentiments on the risk-return relation. We find, at both market and firm levels, the risk-return relation is more likely to be distorted by the two investor-type sentiments jointly, rather than separately. We further find a cross-sectional pattern, with the risk-return relation being more sensitive to investor sentiment for stocks with specific characteristics.     

Are Happy Investors Likely to Be Overconfident?

This study investigates the relationship of investors' happy sentiment and overconfidence effect. Sunshine, temperature, former returns, and margin loan change rate are used as proxies for happy sentiment. Using data from Taiwan Stock Exchange and principal component analysis, the happy sentiment index is divided into two categories: "natural environment happiness" and "investment atmosphere happiness." The results suggest that when natural environment happiness is stronger, investors are less likely to have overconfidence. On the contrary, when investment atmosphere happiness is stronger, investors are more likely to have overconfidence.