San Francisco City & County Employees Retirement System is considering raising the passive allocation weighting to 72% of its domestic equity portfolio, up from 61%, said Carl Wilberg, senior investment officer for the $10.6 billion fund. The board is considering the move to get tracking closer to its Russell 3000 benchmark, he said. The fund currently has 39% of its assets invested in domestic equities, with a target of 32%, he said. The total domestic equity portfolio is $4.1 billion. Investment staff and the funds consultant, Asset Strategy Consulting, made the recommendation, Mr. Wilberg said. The board may decide at its June 8 meeting.