In a noteworthy trading session on Monday, a high-profile partnership in the artificial intelligence sector propelled shares of Advanced Micro Devices (AMD) to new heights, while shares of adtech firm AppLovin faced a significant decline amid regulatory scrutiny.
AMD’s stock surged nearly 25% following the announcement of a collaboration with OpenAI, the organization behind ChatGPT, which recently surpassed SpaceX to become the world’s most valuable startup. As part of this long-term agreement, OpenAI is set to purchase multiple generations of AMD’s AI-centric chips. Additionally, the partnership may lead to OpenAI acquiring a stake in the semiconductor company, further enhancing AMD’s position in the burgeoning AI market.
The positive momentum in the tech sector drove the S&P 500 to a 0.4% gain and the Nasdaq to a remarkable 0.7% increase, both marking fresh closing records. Conversely, the Dow Jones Industrial Average experienced a slight setback, dipping 0.1%. Broader gains in the tech sphere were bolstered by AMD’s announcement, which also positively affected other stocks related to AI infrastructure. Monolithic Power Systems (MPWR) and Super Micro Computer (SMCI) saw their shares rise over 5%, while DoorDash (DASH) and Uber (UBER) joined those ranks following recognition from OpenAI during its developer conference.
In other news, Tesla (TSLA) enjoyed a 5.5% increase in its share price, fueled by speculation surrounding an upcoming event. Many analysts speculated that the electric vehicle manufacturer might announce a new, lower-priced model, a move hinted at during the company’s prior earnings call.
On the flip side, AppLovin (APP) suffered the biggest decline in the S&P 500, plummeting 14% after reports surfaced indicating that the Securities and Exchange Commission (SEC) is investigating the company’s data collection practices. Despite the day’s downturn, AppLovin’s stock has shown resilience overall, with an approximate 80% increase year-to-date.
Verizon (VZ) also faced its share of challenges, as its shares fell 5.1% following the announcement that Dan Schulman, the former PayPal CEO, has taken the helm as the new CEO effective immediately. Schulman, who has sat on Verizon’s board since 2018, replaces Hans Vestberg, who will continue to serve on the board as a special advisor while the company works to complete its acquisition of fiber-optic internet provider Frontier Communications.
Overall, the trading landscape on Monday reflected a blend of optimism in the tech sector driven by advancements in AI, contrasted with concerns over regulatory examinations in other sectors, illustrating the complex dynamics at play in today’s market.

