Arm Holdings shares erased earlier gains and fell more than 3% on Tuesday after Qualcomm said a Delaware jury found that Arm breached their Architectural License Agreement, failed to honor commitments and intentionally disrupted Qualcomm's business operations. Qualcomm shares briefly rose and traded 2% higher. The verdict, dated Oct. 13, 2026, is the latest development in a licensing dispute that followed Qualcomm's $1.4 billion acquisition of Nuvia. Qualcomm alleged that Arm withheld software patches and chip-testing tools for its custom Oryon CPU cores, breached royalty-pricing commitments and leaked a 2024 license-termination warning that damaged Qualcomm's reputation. Qualcomm estimated the alleged leak cost it about $170 million in a potential Meta Platforms deal. Qualcomm did not disclose damages in its latest statement, while an earlier report said the jury awarded $2 in nominal damages.