Tandem Diabetes Care's stock surged 9.29% during pre-market trading following a significant analyst upgrade and the release of its fourth-quarter financial results, which handily exceeded Wall Street expectations.
The pre-market rally was fueled by BofA's decision to upgrade Tandem Diabetes Care to Neutral from Underperform, while more than doubling its price target to $30 from $15. This bullish move from the analyst firm provided a major catalyst for investor sentiment.
Further supporting the price movement were the company's Q4 2025 earnings, which showed a net loss of just $0.01 per diluted share, significantly better than the $0.09 per share loss anticipated by analysts polled by FactSet. Quarterly sales of $290.4 million also surpassed the $277 million consensus estimate, demonstrating stronger-than-expected revenue performance.