The current institutional shareholding score of California Water Service Group is 10.00, ranking 1 out of 14 in the Water & Related Utilities industry. The latest institutional shareholding proportion is 92.30%, representing a quarter-over-quarter decrease of 5.11%. The largest institutional shareholder is ETHSX, holding a total of 431.91K shares, representing 0.71% of shares outstanding, with 1.39% decrease in holdings.