BlackBerry (NYSE: BB) shares surged 5.15% in Thursday's intraday trading, building on the momentum from a strong pre-market rally. The significant uptick comes on the heels of the company's impressive second-quarter financial results and an upward revision of its annual revenue forecast.

The tech company reported quarterly earnings of $0.04 per share, dramatically outperforming the analyst consensus estimate of $0.01 by 207.69%. BlackBerry's quarterly sales also exceeded expectations, coming in at $129.600 million, beating the analyst consensus estimate of $122.058 million by 6.18%. This represents a 2.69% increase over sales of $126.200 million in the same period last year.

Adding to the positive sentiment, BlackBerry raised its annual revenue forecast, further fueling investor optimism. The combination of strong current performance and improved future outlook appears to be the primary driver behind the stock's significant appreciation. The market's reaction underscores the importance of both beating current expectations and providing positive forward guidance in driving stock performance.