Depends on the firm, but there is usually a "lock-up" period of several years where you cannot divest. Sometimes the firms will return the money early if things

Depends on the firm, but there is usually a "lock-up" period of several years where you cannot divest. Sometimes the firms will return the money early if things are getting bad but once the money is deployed they can't risk a bank run because they'd have to fire sale their investments which would be bad for everyone.