I'd like to hear what the risks are in lending out shares (i.e., for others to engage short selling). If anybody has some real and extensive knowledge on this topic, would love to hear from you. More specificially, is there any chance of losing your shares if you lend them out? If so, in what scenarios would you lose your shares? Also are there any other scenarios where it wouldn't be advantageous to lend it shares? Also is lending out shares the same risk across all institutions? Meaning, does lending out my shares via my Fidelity account carry the exact same risk as it does lending out my shares via an IB (or other) account?