Wednesday turned into an AI lovefest on Wall Street, with U.S. stocks advancing as Nvidia's earnings reignited enthusiasm across the sector. The Nasdaq climbed 0.59% to 22,564.22, the S&P 500 added 0.38% to 6,642.16, and the Dow Jones Industrial Average inched up 0.1% to 46,138.77.

Here's a closer look at the five stocks that captured retail investors' attention throughout the trading day.

Nvidia Delivers Record Revenue and After-Hours Pop

Nvidia Corporation (NVDA) shares rose 2.85% during regular trading, closing at $186.52. The stock reached an intraday high of $187.86 and a low of $182.83, with a 52-week range of $86.63 to $212.19. Then came the real action: after-hours trading saw the stock rally 5.08% to $196.

The chip giant reported record third-quarter revenue of $57 billion, cruising past analyst expectations of $54.88 billion. The revenue surge reflects accelerating demand for its Blackwell chips, with CEO Jensen Huang delivering his signature optimism: "AI is going everywhere."

That's the kind of statement that either sounds visionary or ridiculous depending on whether you're long or short, but right now the numbers are backing him up.

Palo Alto Networks Beats Estimates But Slides on Acquisition News

Palo Alto Networks Inc. (PANW) saw a modest decrease of 0.55% during the day, closing at $199.90. The stock's intraday high was $202.60, with a low of $199.24, and a 52-week range of $144.15 to $223.61. Things got rougher after the bell, with the stock slipping 3.7% to $192.42.

The cybersecurity company announced first-quarter revenue of $2.47 billion, slightly above analyst estimates of $2.46 billion. Despite beating earnings expectations, shares slid following news of an AI-linked acquisition. The company agreed to acquire Chronosphere to enhance its AI-scale observability and security capabilities. Management raised guidance for both the second quarter and fiscal 2026, reflecting continued confidence in demand.

Sometimes beating estimates isn't enough when investors are trying to figure out what your acquisition strategy means for margins.

CoreWeave Rides the AI Infrastructure Wave

CoreWeave, Inc. (CRWV) stock edged up just 0.03% during regular trading, closing at $74.92. The stock hit an intraday high of $77.37 and a low of $72.88, with a 52-week range of $33.52 to $187.00. But the real move came after hours, when the stock shot up nearly 10% to $82.48.

The company experienced what traders are calling a "pick-and-shovel" rally after Nvidia's strong earnings report. When the gold miners strike it rich, the companies selling them equipment tend to do pretty well too. CoreWeave provides the infrastructure that powers AI workloads, and Nvidia's blowout quarter reassured investors that the AI trade has plenty of runway left.

Broadcom Unveils Quantum-Resistant Tech

Broadcom Inc. (AVGO) shares climbed 4.09% during the session, closing at $354.42. The stock reached a high of $359.69 and a low of $337.80, with a 52-week range of $138.10 to $386.48. After-hours trading pushed it up another 2.85% to $364.52.

The company unveiled its new Brocade Gen 8 networking platforms designed to protect against future quantum cyberattacks. This technology launch aims to safeguard enterprise storage from emerging threats that don't quite exist yet but probably will eventually.

Broadcom also rolled out new AI-driven storage management tools that monitor networks, learn workload behavior, and flag issues early. The system boosts visibility across connected devices, including virtual machines, helping IT teams resolve problems faster. It's the kind of unglamorous but essential infrastructure work that keeps data centers humming.

AMD Falls, Then Recovers as Nvidia Lifts All Boats

Advanced Micro Devices Inc. (AMD) stock fell 2.93% during regular hours, closing at $223.55. The stock's intraday high was $235.28, with a low of $219.71, and a 52-week range of $76.48 to $267.08. The Nvidia rival's fortunes reversed after-hours, rising 4.45% to $233.49.

The decline during regular trading came as the semiconductor sector held its breath waiting for Nvidia's earnings report. Meanwhile, AMD secured a significant win to power France's Alice Recoque exascale supercomputer, marking a strategic victory in the high-performance computing space.

The Lisa Su-led company recently won over analysts with bold long-term targets, forecasting 35% compound annual revenue growth over the next three to five years as it chases a share of the $1 trillion AI market by 2030. Those are the kind of numbers that get people excited, assuming you believe them.

Still, Wall Street remains fixated on Nvidia's dominance. Analysts note that although AMD is advancing its MI450 chips to compete with Nvidia's next-generation architecture, the revenue gap is vast. Because Nvidia's earnings act as a macro catalyst for the entire tech sector, AMD investors watched closely to see whether the AI momentum could lift the second-place player as well.

Turns out it did, at least in after-hours trading. Earlier this month, AMD topped third-quarter expectations, with revenue up 36% year over year, driven by a 73% surge in Client and Gaming and a 22% gain in Data Center sales. Not bad for a company trading in Nvidia's shadow.

For context, stock rankings indicate Nvidia has Value in the 3rd percentile compared to chip rivals like AMD. In other words, Nvidia trades at a premium, while AMD offers relatively more value on traditional metrics. Whether that value gap closes or widens depends largely on whose AI chip predictions prove more accurate over the next few years.