California Public Employees Retirement System, Sacramento, returned 18.2% for the 12-month period ended Sept. 30, virtually tying the median returns of large fund TUCS and Wilshire indexes. During that period, the TUCS universe of $1 billion-plus median funds returned 18.3%, while the Wilshire large fund universe returned 18.2%. CalPERS returned 15.7% for both the three-year and five-year periods. In comparison, the TUCS median return was 14.95% and 15.6%, respectively, for the periods; the Wilshire median was 15.8% and 16%, respectively. By Dec. 9, CalPERS market value had reached $168.5 billion.