Updating BlackBerry Ltd., Pengrowth Energy Corp. and Bank of Nova Scotia

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BLACKBERRY LTD. $9.49 (Toronto symbol BB; Aggressive Growth Portfolio, Manufacturing & Industry sector; Shares outstanding: 530.4 million; Market cap: $5.0 billion; Price-to-sales ratio: 3.4; No dividends paid; TSINetwork Rating: Speculative; www.blackberry.com) provides secure wireless communication services and equipment. The company recently quit developing new smartphones as part of a strategy to focus on its more-promising software operations. Under that new plan, BlackBerry has opened a facility in Ottawa to develop new technologies for self-driving cars using its QNX software system. Over 60 million vehicles now use QNX to power their in-car information/entertainment systems. However, this a rapidly growing field, and BlackBerry faces strong competition from much larger firms such as Waymo, Google’s self-driving car unit. BlackBerry is still a hold. PENGROWTH ENERGY CORP. $1.90 (Toronto symbol PGF; Aggressive Growth Portfolio, Resources sector; Shares outstanding: 547.4 million; Market cap: $1.0 billion; Price-to-sales ratio: 1.9; Dividend suspended in January 2016; TSINetwork Rating: Speculative; www. pengrowth.com) produces oil and natural gas in Western Canada and off the…