Yale University, whose endowment strategy has been a model for US schools, said its investments returned 22 percent in the past fiscal year, leading a two-year comeback by the richest US universities.

The endowment’s value rose to $19.4 billion as of June 30, from $16.7 billion a year earlier.

Yale’s 22 percent gain is the best of the eight Ivy League schools that have reported results so far.

Harvard, the world’s richest school, said Sept. 22 its investments advanced 21 percent.

Duke University in Durham, NC, said Sept. 27 its investments gained 25 percent, compared with the 18 percent increase at the Massachusetts Institute of Technology in Cambridge.

The University of Pennsylvania in Philadelphia said Sept. 15 its fund gained 19 percent. Ithaca, NY-based Cornell University’s fund climbed 20 percent.