The Score is a weekly review of the biggest stock moves and the news that drove them.
Delta Air Lines
Sunny quarterly results from Delta Air Lines sent air carrier stocks soaring on Thursday.
Delta, the biggest U.S. carrier by market capitalization, beat earnings and sales expectations amid a recent recovery in travel demand.
Revenue rose 6% to $16.7 billion from a year earlier, boosted by premium-cabin demand, corporate travel and its loyalty program customers. Delta said it expects travel demand to continue to bounce back and is aiming for a record holiday season.
Airlines faced turbulence earlier this year, when rising geopolitical tensions and President Trump's tariff campaign punctured consumer confidence.
Delta shares rose 4.3% Thursday.
Tesla
Tesla rolled out cheaper, stripped-down versions of its bestselling sedan and sport-utility vehicle on Tuesday.
After teasing an announcement on social media, Elon Musk's electric-vehicle maker unveiled a "standard" Model 3 and Model Y that lack features such as wraparound ambient lighting and power-adjusted steering wheels.
The cheaper vehicles are aimed at budget-conscious buyers and could help ease the sting of the recent expiration of a $7,500 U.S. federal tax credit for EVs.
But the discount doesn't completely cover the lost credit.
The new standard Model 3 sedan costs $36,990, while the next-cheapest version is priced at $42,490 -- a difference of $5,500. The standard Model Y SUV costs $39,990, compared with a 2025 variant's $44,900 price tag -- a difference of $4,910.
After rising 5.4% Monday, Tesla shares lost 4.4% Tuesday.
Ford
A devastating fire will disrupt operations at a key supplier of the U.S. auto industry for months, The Wall Street Journal reported late Monday.
The Sept. 16 three-alarm fire leveled a key part of a New York aluminum plant operated by Novelis, which industry analysts say supplies about 40% of the aluminum sheet used by the auto industry in the U.S.
Ford is the biggest user of the plant, and its F-150 pickup is one of the industry's biggest users of aluminum. The automaker switched the F-150's exterior to aluminum from steel a decade ago.
Other automakers that get aluminum from Novelis include Toyota, Hyundai, Volkswagen and Jeep maker Stellantis, according to a regulatory filing.
Ford shares fell 6.1% Tuesday.
Advanced Micro Devices
AMD scored a big win in its fight to take on chip-industry giant Nvidia.
The company on Monday unveiled a multibillion-dollar computing deal with OpenAI, under which the two will work together on artificial-intelligence data centers that run on AMD processors.
OpenAI committed to purchasing six gigawatts of AMD's chips. The ChatGPT maker will receive warrants for up to 160 million AMD shares, roughly 10% of the chip company, at 1 cent per share, awarded in phases under certain conditions.
While Nvidia has dominated the AI chip market, AMD's processors are widely used for gaming, in personal computers and traditional data-center servers.
AMD shares jumped 24% Monday.
Pepsi
PepsiCo wants to turn its soda and snack sales around.
To that end, the owner of Lay's chips and Quaker Oats appointed a Walmart executive as its chief financial officer. Steve Schmitt will assume PepsiCo's CFO role effective Nov. 10, PepsiCo said Thursday.
In recent years, PepsiCo has struggled to claw soda market share back from rivals, while its food business has stalled as inflation weighed on shoppers' appetite for snacks. PepsiCo is up against activist Elliott Investment Management, which amassed a nearly $4 billion stake in the company.
The company also posted better-than-expected quarterly earnings and revenue.
PepsiCo shares rose 4.2% Thursday.
Serve Robotics Inc.
The future of food delivery is here.
Serve Robotics shares popped 29% Thursday after the maker of artificial intelligence-powered food-delivery robots announced a multiyear partnership with DoorDash.
Serve will work with DoorDash to expand its footprint across the U.S., starting in Los Angeles.
Serve's self-driving sidewalk robots are already making deliveries in the city -- as well as in Miami, Dallas, Chicago, and Atlanta -- through an existing partnership with Uber Eats.
Serve says its autonomous machines have completed more than 100,000 deliveries to date.