Suyanto Suyanto
The objective of this research is to examine and analyze the effect of Earning Per Share on Price to Book Value with Firm Size as intervening variable. Population of research is 45 go-public firms in LQ45 Index that are listed at Indonesia Stock Exchange on period of 2017-2019. Sampling technique is purposive sampling that produces 36 samples but there are 9 firms that do not submit periodical financial statements to LQ45 Index on period of 2017—2019. Analysis technique is PLS-SEM supported by computer application of WarpPLS 7.0. Result of research shows that Earning Per Share has significant effect not only on Price to Book Value but also on Firm Size. The effect of Earning Per Share on Price to Book Value is significant. The result also indicates that Firm Size is the intervening variable in partial mediation. The increase of Earning Per Share is always followed by the increase of Price to Book Value. High level of Earning Per Share is delivering high level of profitability and conversely, small earnings is giving low profitability. The result proves that Firm Size is a factor needed for assessing profitability.