機(jī)構(gòu)投資者行為、網(wǎng)絡(luò)開源信息與IPO定價(jià)
本文選題:詢價(jià)制 + 博弈分析。 參考:《天津大學(xué)》2014年碩士論文
【摘要】:自我國(guó)2005年正式實(shí)施新股詢價(jià)制以來,新股詢價(jià)制度經(jīng)歷了三次重大改革,雖然在改革之后IPO首日高抑價(jià)的現(xiàn)象得到遏制,但同時(shí)又帶來了新的高發(fā)行價(jià)、高市盈率和高超募資金的“三高”問題。2010年證監(jiān)會(huì)要求準(zhǔn)上市公司在上市過程中披露詢價(jià)機(jī)構(gòu)的具體報(bào)價(jià)和申購(gòu)量,,這無疑為找到這些問題的深層原因提供了鑰匙。與此同時(shí),相關(guān)文獻(xiàn)已經(jīng)證明網(wǎng)絡(luò)信息的迅速發(fā)展顯著影響投資者的行為,因此,本文通過詢價(jià)過程中詢價(jià)機(jī)構(gòu)的具體報(bào)價(jià)、申購(gòu)量以及網(wǎng)絡(luò)開源信息研究機(jī)構(gòu)投資者報(bào)價(jià)、承銷商定價(jià)行為,為揭示IPO異象形成機(jī)理提供實(shí)證依據(jù),幫助政策制定者完善詢價(jià)制度。 首先,本文從不同角度闡述了國(guó)內(nèi)外詢價(jià)制度研究現(xiàn)狀,詢價(jià)機(jī)構(gòu)的報(bào)價(jià)行為以及網(wǎng)絡(luò)開源信息對(duì)金融領(lǐng)域的影響;然后通過兩種不同機(jī)制下的詢價(jià)過程進(jìn)行博弈分析,研究詢價(jià)機(jī)構(gòu)與承銷商行為;最后通過比較詢價(jià)機(jī)構(gòu)的加權(quán)平均報(bào)價(jià)、發(fā)行價(jià)以及解禁日收盤價(jià)的差異,實(shí)證分析了詢價(jià)機(jī)構(gòu)定價(jià)以及承銷商行為,同時(shí),通過基于文本語義的挖掘算法得到一組關(guān)于中小板網(wǎng)絡(luò)信息指標(biāo),分析了其在詢價(jià)制過程中的作用。 本文收集了2010年9月至2012年1月期間新上市的中小板數(shù)據(jù),開創(chuàng)性地研究了詢價(jià)過程中詢價(jià)機(jī)構(gòu)的報(bào)價(jià)行為、承銷商的定價(jià)行為以及網(wǎng)絡(luò)開源信息對(duì)IPO定價(jià)的影響。結(jié)果發(fā)現(xiàn),為了能夠獲得一、二級(jí)市場(chǎng)的新股差價(jià)收益,詢價(jià)機(jī)構(gòu)的加權(quán)平均報(bào)價(jià)顯著低于解禁日收盤價(jià);承銷商對(duì)新股的最終定價(jià)顯著高于詢價(jià)機(jī)構(gòu)的加權(quán)平均報(bào)價(jià),這是造成我國(guó)目前IPO“三高”現(xiàn)象的部分原因;雖然QFII具有最高的報(bào)價(jià)精度,但是承銷商在定價(jià)時(shí),主要參考的還是基金公司、證券公司、保險(xiǎn)公司和自主推薦公司的報(bào)價(jià)。另外,作者還研究了網(wǎng)絡(luò)開源信息在IPO詢價(jià)制中的作用,定價(jià)前更多的利好網(wǎng)絡(luò)開源信息,會(huì)使承銷商對(duì)價(jià)格向上調(diào)整的更多,更多的利空網(wǎng)絡(luò)信息,則會(huì)使價(jià)格向下調(diào)整更多;投資者在等待上市期間對(duì)利空網(wǎng)絡(luò)開源信息反應(yīng)強(qiáng)烈,而對(duì)利好網(wǎng)絡(luò)開源信息則采取了保守的態(tài)度。最后,根據(jù)研究設(shè)計(jì)和實(shí)證結(jié)果,總結(jié)了本研究的不足,并提出下一步的研究方向。
[Abstract]:Since the formal implementation of the new stock inquiry system in 2005 in China, the new stock inquiry system has undergone three major reforms. Although the phenomenon of high underpricing on the first day of IPOs after the reform has been contained, it has also brought about a new high issue price at the same time. The 2010 CSRC required prospective companies to disclose specific quotations and requisitions from inquiry agencies during the listing process, which no doubt provided the key to finding the underlying causes of these problems. At the same time, the related literature has proved that the rapid development of network information significantly affects the behavior of investors. The pricing behavior of underwriters provides an empirical basis for revealing the formation mechanism of IPO anomalies and helps policy makers to improve the inquiry system. Firstly, this paper expounds the current situation of inquiry system research at home and abroad, the bidding behavior of inquiry agencies and the influence of network open source information on the financial field, and then through two different mechanisms of inquiry process to carry out game analysis. Finally, by comparing the weighted average quotation, the issue price and the closing price, the author empirically analyzes the pricing and underwriter behavior of the inquiry agency and the underwriter. Through text semantic mining algorithm, we get a set of information indexes about small and medium board network, and analyze its function in the process of inquiry system. From September 2010 to January 2012, this paper collects the data of newly listed small and medium-sized boards, and studies the pricing behavior of inquiry agencies, underwriters' pricing behavior and the influence of online open source information on IPO pricing. The results show that the weighted average quotation of the inquiry agency is significantly lower than the closing price of the day of lifting the ban, and the final pricing of the new shares by underwriters is significantly higher than that of the weighted average quotation of the inquiry agencies in order to obtain the yield of the new shares in the first and secondary markets. Although QFII has the highest price accuracy, the underwriters mainly refer to the quotations of fund companies, securities companies, insurance companies and independent recommendation companies. In addition, the author also studies the role of network open source information in IPO inquiry system. More favorable network open source information before pricing will cause more underwriters to adjust prices upward, and more bad network information. Investors reacted strongly to the open source information while waiting to go public, while taking a conservative attitude towards the good news. Finally, according to the research design and empirical results, summarized the shortcomings of this study, and proposed the next research direction.
【學(xué)位授予單位】:天津大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:F832.51
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