History <a href=" http://prepaidmeters.us/?has-anyone-ordered-accutane-online.pdf ">isotretinoin ipledge rems</a> BlackBerry's Toronto-listed shares fell as much as 23.7 percent to C$8.25 on Friday, their lowest this year, before closing down 16 percent at C$9.08. The company's Nasdaq-listed shares ended 17 percent lower at $8.73, after falling as low as $8.01.