BlackBerry Limited's stock price surged by 11.61% primarily due to its involvement in the meme-stock wave that has been resurfacing in the market. Key figures such as 'Roaring Kitty' played a significant role in driving renewed interest in meme stocks, with BlackBerry being a standout player in this trend. The meme-driven momentum, social media hype, short squeeze potential, and increased trading activity all contributed to the surge in BlackBerry's stock price. The company benefited from heightened retail investor interest and speculative trading behavior, aligning with the broader meme stock rally led by stocks like GameStop and AMC. Overall, BlackBerry's participation in the meme stock rally, coupled with positive market sentiment and investor optimism, propelled its stock price increase.