The article compares beta estimates obtained from Ordinary Least Squares (OLS) regression with estimates corrected for heteroscedasticity of the error term using Autoregressive Conditional Heteroscedasticity (ARCH) models, for 145 UK shares. The differences are mainly less than 0.10, for betas...

The article analyses how the returns to a shareholder and the returns for an event study are calculated during the three types of seasoned equity offer (SEO) in use in the UK, namely rights issues, open offers and placings. The calculations differ across the two types of return and the three...

Much of the new equity declined by existing shareholders in UK SEOs is bought in a few large blocks, both by other existing holders and by new investors. The paper argues that a placing process via negotiation with investors facilitates the purchase of large blocks better than the alternative...