Does SIPC provide coverage for securities loaned out under the Stock Yield Enhancement Program?

There is no guarantee that all eligible shares in a given account will be loaned through the Stock Yield Enhancement Program as there may not be demand for certain securities, IBKR may not have access to a market with willing borrowers, IBKR may not want to loan your shares, or securities may not be considered to be excess margin (fully paid) securities…

No, unfortunately it is not possible to disable share lending with respect to the protection and hypothecation rules of the SEC or the Stock Yield Enhancement Program for an individual security. The only way to prevent a security from being lent is by owning all of your securities outright (no margin loan) and by not participating in the Stock Yield Enhancement Program. …

The Stock Yield Enhancement Program Securities Collateral Held at IBKR Securities Services LLC ("IBKRSS") section appears in statements of participating clients whose shares are being lent. It shows details of the U.S. Treasuries being used as collateral for the Stock Yield Enhancement Program loans on your account…

No. The Canadian Investor Protection Fund (CIPF) does not protect you as a lender with respect to securities loan transactions in which you lend to Interactive Brokers (IBKR) your Fully-Paid Securities through the Stock Yield Enhancement Program. Therefore, the cash collateral delivered to you (and indicated on your account statement) by IB Canada will constitute the only source of satisfaction of IBKR's obligation in the event that IB Canada fails to return the securities…