Beta Bubbles
SSRN Electronic Journal
2017
- 3,718Usage
- 5Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
We show that an increase in a stock’s breadth of institutional ownership or turnover is followed by a significant but temporary increase in its CAPM beta estimate and a decrease in its CAPM alpha. The increasing effect of breadth of ownership on beta estimates strengthens if we classify institutional investors by their historical trading horizon and look at the effect of changes in the ownership breadth of short-horizon institutional investors. These transitory, trading activity-driven components of beta estimates that we find contribute to the empirical failure of the CAPM and the large returns to long-short portfolios that bet against beta. In addition, the relations between ownership breadth, turnover and betas that we document help explain the puzzling fact that on average betas increase after seasoned equity offerings and stock splits, and decrease after stock repurchases.
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