Shareholder confidence in Groupe Dynamite Inc. took a hit Tuesday as the company's share price plunged almost 36 per cent, despite the retailer recording a significant jump in profit and revenue during its most recent quarter. The Montreal-based apparel company's share price closed the trading day down $26.70 to $47.74, after it reduced its net new store openings and missed some analysts' expectations. The disappointment didn't escape CEO Andrew Lutfy.