Oklahoma State University, Stillwater, might increase the alternatives allocation of its $160 million endowment fund, pending the outcome of an asset allocation study due to be completed by October, said Donna Koeppe, treasurer. Officials are considering all types of alternative investments, she said; the size of any new portfolios, as well as potential funding sources, have not been determined. The current asset allocation is 70% equity, 25% fixed income and 5% alternatives. J.H. Ellwood is assisting.