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The effect of investor sentimet and network extracted from Internet message boards on IPO puzzles

Research Project

Project/Area Number 26885065
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Management
Research InstitutionKwansei Gakuin University (2015)
Osaka City University (2014)

Principal Investigator

TSUKIOKA Yasutomo  関西学院大学, 商学部, 助教 (50736709)

Project Period (FY) 2014-08-29 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords投資家心理 / IPO / テキストマイニング / 初期収益率 / 投資家注目度 / カスケード / ネットワーク / SVM / IPO / 新規株式公開 / インターネット掲示板 / サポートベクターマシーン
Outline of Final Research Achievements

This study find bullish investor sentiment and sentiment cascade lead to IPO puzzles: high initial return and low post-IPO stock returns. Pre-IPO investor sentiment is extracted from Yahoo! Japan message boards using text-mining technique and support vector machine. In adddition to that, The constrution of investoer network is based on reply message of poster on message boards.We find that excessive optimism and sentiment cascade lead to IPO puzzles.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • Research Products

    (6 results)

All 2016 2015

All Journal Article (1 results) (of which Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Invited: 1 results)

  • [Journal Article] インターネット掲示板における投資家心理とIPO後の株式売買2015

    • Author(s)
      月岡靖智
    • Journal Title

      証券アナリストジャーナル

      Volume: 53 Pages: 38-46

    • Related Report
      2015 Annual Research Report
    • Acknowledgement Compliant
  • [Presentation] インターネット掲示板にみるカスケード効果と初期収益率2016

    • Author(s)
      月岡靖智
    • Organizer
      第16回人工知能学会金融情報学研究会
    • Place of Presentation
      ブルームバーグ L.P. (東京都千代田区)
    • Year and Date
      2016-03-28
    • Related Report
      2015 Annual Research Report
  • [Presentation] インターネット掲示板にみるカスケード効果とIPOパズル2015

    • Author(s)
      月岡靖智
    • Organizer
      行動経済学会第9回大会
    • Place of Presentation
      近畿大学東大阪キャンパス (大阪府東大阪市)
    • Year and Date
      2015-11-28
    • Related Report
      2015 Annual Research Report
  • [Presentation] インターネット掲示板にみるカスケード効果とIPOパズル2015

    • Author(s)
      月岡靖智
    • Organizer
      日本経営財務研究学会第39回全国大会
    • Place of Presentation
      九州大学箱崎キャンパス (福岡県福岡市)
    • Year and Date
      2015-10-03
    • Related Report
      2015 Annual Research Report
  • [Presentation] The effect of cascade on IPO puzzles: evidence from Internet stock message boards2015

    • Author(s)
      Tsukioka Yasutomo
    • Organizer
      コンファレンス「行動経済学・行動ファイナンスのフロンティア」
    • Place of Presentation
      大阪大学中之島センター (大阪府大阪市)
    • Year and Date
      2015-09-11
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] Investor Sentiment on Internet Stock Message Boards and IPO puzzles2015

    • Author(s)
      月岡靖智
    • Organizer
      11th International Business and Social Sciences Research Conference
    • Place of Presentation
      Dubai, UAE
    • Year and Date
      2015-01-08 – 2015-01-09
    • Related Report
      2014 Annual Research Report

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Published: 2014-09-09   Modified: 2017-05-10  

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