re: Anyone see this story about CYNK?

Theory -v- Practice. In theory you borrow shares only. As a practical matter, since your broker needs to put up 102% cash equivalent as collateral, and sometimes you get a rebate of the fees accrued, at least I do from IB, you are required to put up cash, or cash equivalents.

For almost all retail investors when they short they are borrowing cash and shares. You don't pay interest on shares borrowed you pay fees. Your charges are expressed in interest because there is a cash component to it.

Again, go to your brokers margin calculator if you have a margin account, and enter a short for CYNK. Pay close attention what happens to your cash balance.