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CAPM applications for appropriate stock pricing – impact of speculation companies

100%
Urbański S., Skalna I.
Managerial Economics
|
2017
|
vol. 18
|
issue 2
227-245
XX
Research on the pricing of stocks listed on the Polish market shows a contradiction with the classic CAPM. The results of these studies are consistent with the results carried out on other developed markets. The reasons for inconsistent pricing are not known; this is the main objective of this work. It is a continuation of the authors’ previous work on the impact of speculation and penny stocks on the pricing in light of the ICAPM. Despite the scientific justifications for pricing in light of the ICAPM, a common estimate of the capital cost for companies is still performed on the basis of the classic CAPM. It has been conjectured that speculative stocks contribute to incompatible pricing in light of the CAPM. The elimination of speculative stocks would allow for the proper estimate of the cost of capital without the need of complicated and laborious ICAPM applications. The research is conducted on the basis of stocks listed on the Warsaw Stock Exchange from 1995 through 2012. The tested period is divided into two separate sub-periods: 1995–2005 (the years preceding Poland’s accession to the EU) and 2005–12 (the years of Poland’s membership in the EU). The analyzed stocks are grouped into quintile portfolios according to two variants. The pricing tests are carried out in three modes. In Mode, 1 all listed stocks are analyzed. In Modes 2 and 3, speculative stocks are excluded from the study. The research results prove the validity of the adopted conjectures.
2

The Impact Of Penny Stocks On The Pricing Of Companies Listed On The Warsaw Stock Exchange In Light Of The CAPM

75%
Urbański S., Jawor P., Urbański K.
Folia Oeconomica Stetinensia
|
2014
|
vol. 14
|
issue 2
163-178
EN
Oryginality and objective – Research on the pricing of stocks listed on developed markets shows inexplicable deviation from the pricing that could be observed with CAPM validity. A similar anomaly is found on the Polish market. Reasons for inconsistent pricing with CAPM are unknown, and they are the main objective of this research. Method – The study is conducted using stocks listed on the Warsaw Stock Exchange in 1995–2012. Quintile stock portfolios are formed on the basis of strategies widely used by investors. The study is carried out in several modes. In the subsequent modes penny stocks with the market values below 0.5, 1.5, 5.0 and 15.0 PLN are eliminated. Results – It is conjectured that both penny stocks and improper procedures for the test portfolios forming contribute to inconsistent stock pricing in light of the CAPM. The studies show that results are in line with the extended conjectures. Also, study results indicate that speculative stocks are mostly penny stocks, however, it is not possible to explicitly state that penny stock are speculative.
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