Algi Febri Sugita / SOPA Images / LightRocket via Getty Images OpenAI is considered the world's most valuable startup. Key Takeaways News involving OpenAI has a tendency to move the shares of companies involved. Today's example is Broadcom, which saw its stock jump on news of a deal with the ChatGPT maker. OpenAI isn't publicly traded. But when it acts, stocks often move. On Monday, it was Broadcom's (AVGO) turn. Shares of the chipmaker were recently up nearly 10%, approaching 2025 highs, following ...