Colleges and universities are under growing pressure from Congress and campus activists to reveal financial investments made through their endowments, but most institutions are standing firm against the idea.

The movement includes federal lawmakers who are questioning whether to tax colleges on investment profits that can amount to billions of dollars a year. Many students and alumni are making inquiries too, demanding to know whether schools invest in certain industries.

Those moves challenge the privacy that has long been granted to university endowments, which are large pools of investments meant to provide financial aid to current students and to sustain the schools for future generations.


Endowments face little federal regulation compared with other fund-raising institutions. Private foundations, for example, are required to spend at least 5 percent of their assets each year and pay a 2 percent excise tax on investment earnings. Colleges face no spending rules and, because of their educational purpose, are not taxed on their earnings.

Despite the calls for transparency, record requests made by the Associated Press to dozens of the nation’s wealthiest colleges show a continued push to keep investments secret.

Out of 50 public and private universities asked to disclose their investments, 39 schools with combined endowments of $255 billion refused to provide a single record. Four never responded to the requests sent in September. None of the private universities, which are not subject to open-records laws, released any information.

Most public universities, which operate with taxpayer money, kept their investments secret. The universities that did provide records in most cases revealed only a small fraction of their portfolios.

Colleges drew on a variety of reasons to withhold records. The University of Virginia and four other public universities said they house their endowments in outside foundations that are not subject to open-records laws. Michigan State University, also public, cited a state law that explicitly keeps college investments confidential. Private Vanderbilt University said it made agreements with financial managers not to share investment details.


‘‘I think that they go to great lengths to try to isolate themselves,’’ said Neal Stoughton, a professor and director of the Endowment Research Center at Vienna University of Economics and Business in Austria.

‘‘They don’t want the endowments to be subjected to a lot of political influence, because that’s not the way to invest for the long term,’’ he added. ‘‘That’s not the way to get a higher rate of return.’’

Transparency can also lead to unwanted scrutiny. For instance, Harvard University’s investments in the timber industry inspired student protests in 2014, and environmental groups blasted the school for buying land in Africa to be used for commercial farming. Harvard insists that it invests responsibly.

The University of California system told a student newspaper that it cut investments in the owner of Bushmaster, the maker of the rifle used in the Sandy Hook Elementary School shootings. The New York Times uncovered the financial tie in 2013.

Many colleges contend that disclosing their investment portfolios would risk losing a competitive edge. Instead, most schools issue annual reports with broad information but few details. Exceptions include the investment arm of the University of Texas system, which is required under state law to publish its holdings every year.

‘‘It’s a trade-off between negatively affecting the performance and wanting to fully inform,’’ said Richard Smith, a finance professor at the University of California Riverside who has researched endowments. ‘‘Sometimes there’s a value in keeping your investment choices secret.’’


Two congressional committees sent letters to the richest private colleges last month asking for a wide range of information about their endowments, including how the schools use endowment assets ‘‘to fulfill their charitable and educational purposes.’’ The inquiry was partly meant to determine whether schools deserve the federal tax breaks they receive.

Separately, Representative Tom Reed, a Republican from New York, is drafting a proposal that would require all endowments of more than $1 billion to spend at least 25 percent of their profits every year on financial aid. He also hopes to propose stronger reporting requirements to shed light on college investments.

On campuses, too, students have been pushing for greater transparency. Some schools have heeded calls from students and dropped certain investments. Becker College, a small private school in Massachusetts, said on March 10 that all its investments would ‘‘generate a positive impact on society.’’

But often, even the institutions don’t know where their money goes, in part because they hire outside managers who constantly buy and sell investments.