Bloomberg News has an update on the performance of Harvard's endowment, tied to the recent news of the exits of three senior money managers:
Harvard's endowment posted annual average gains of 1.7 percent in the past five years, according to data compiled by Charles Skorina & Co. That compares with annual returns of 6.8 percent at Columbia University, 5.4 percent at University of Pennsylvania and 3.3 percent at Yale University.
The Bloomberg article doesn't say whether those returns are after the costs of paying the money managers, but my impression is that usually that's how such returns are stated. The Bloomberg also doesn't say how much more money Harvard would have if the $32.7 billion endowment had posted better returns, or whether the Columbia, Penn, or Yale endowments accepted greater risk or less liquidity to achieve the higher returns.