Ten stocks capped off the trading session with double-digit gains, mirroring a rally on the broader market, as investors generally shrugged off concerns of a government shutdown.
Of the 10 companies, five climbed to fresh all-time highs, buoyed by company-specific developments.
Meanwhile, the tech-heavy Nasdaq led Wall Street’s gains, jumping 0.39 percent, followed by the Dow Jones with a 0.17 percent increase, and the S&P 500, up 0.06 percent.
In this article, we spotlight the names of the best-performing companies on Thursday and detail the reasons behind their strong performance.
To come up with the list, we focused exclusively on mid-cap stocks with more than $2 billion in market capitalization and 5 million shares in trading volume.
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10. SoundHound AI, Inc. (NASDAQ:SOUN)
SoundHound AI extended its winning streak to a third straight day on Thursday, jumping 10.46 percent to close at $17.84 apiece as investors cheered strong customer satisfaction for its AI software, Amelia.
In a statement, SoundHound AI, Inc. (NASDAQ:SOUN) said it was named a leader in the IDC MarketScape for Worldwide General-Purpose Conversational AI Platforms 2025 Vendor Assessment for its AI software arm, Amelia.
According to the IDC, Amelia customers “[reported] strong satisfaction with the quality of Amelia’s voice AI, including AI-generated voice responses,” adding that they highly praised the product’s ability to handle complex requests, including those with multiple intents.
The IDC MarketScape added that large enterprises should consider SoundHound AI, Inc.’s (NASDAQ:SOUN) Amelia 7 platform if they are “looking for an installable or fully managed conversational AI platform with the ability to generate dynamic, ‘human-like’ responses and strong support for voice channels.”
Launched in May 2025, the Amelia 7 platform was one of the first conversational AI platforms to offer agentic capabilities to enterprise businesses. Its AI agents are capable of listening, reasoning, acting, and completing even complex multi-step tasks by orchestrating in fleets to achieve a particular goal.
With the platform’s Agentic+ framework, businesses can also leverage the reasoning and planning skills of LLMs in combination with deterministic flows, as well as human-in-the-loop.
9. Oklo Inc. (NYSE:OKLO)
Oklo grew its share prices by 11.10 percent on Thursday, a second straight day, to finish at $128.80 apiece after it was named by the Department of Energy (DOE) as one of the four companies to build advanced nuclear power line projects.
In a statement on Tuesday, Oklo Inc. (NYSE:OKLO) said it was chosen by the DOE to help build and operate three fuel-fabrication facilities to support the deployment of advanced reactors. The three others were Terrestrial Energy, TRISO-X, and Valar Atomics.
In August 2025, Oklo and its subsidiary, Atomic Alchemy, an innovator in radioisotope production, were selected for three of DOE’s 11 projects under the Reactor Pilot Program, after executive orders signed in May 2025 aimed at reinvigorating America’s nuclear energy industry.
The DOE project also followed Oklo Inc.’s (NYSE:OKLO) newly clinched projects last month, including a $1.68 billion fuel recycling facility as the first phase of an Advanced Fuel Center in Tennessee, and its first Aurora powerhouse at the Idaho National Laboratory in Idaho.
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