CHINA - 2025/09/04: In this photo illustration, an IBM logo is seen displayed on the screen of a tablet. (Photo Illustration by Sheldon Cooper/SOPA Images/LightRocket via Getty Images)SOPA Images/LightRocket via Getty Images IBM shares notched a fifth straight session of gains, rising 7.3% over the past five days. The rally added roughly $18 billion in market value, bringing IBM’s market capitalization to about $241 billion. The stock now stands 20.3% above its level at the end of 2024, compared with a 10.7 ...