I opted in – read /most/ of the description and it didn’t seem like it would do any harm. They can unborrow your shares at any time (fine) but they can’t disallow you from selling your shares.
Quote:
Are there any restrictions placed upon the sale of securities which have been lent through the Stock Yield Enhancement Program?
Loaned shares may be sold at any time, without restriction. The shares do not need to be returned in time to settle your sale of the share and proceeds from the sale are credited to the client’s account on the normal settlement date. In addition, the loan will be terminated on the open of the business day following the security sale date.
