News Summary
Several companies in Orange County have demonstrated impressive growth in market capitalization over the past year, notably TTM Technologies, Viant Technology, and Willdan Group. Despite the overall decline in collective market cap for publicly traded companies in the region, these firms achieved significant gains. Viant Technology showed resilience with a substantial revenue increase driven by advanced advertising tools. The overall business confidence in Orange County has also risen, reflecting a more optimistic outlook among local business leaders despite economic challenges faced by some firms.
Irvine, California – Despite facing economic challenges, several companies in Orange County have reported remarkable gains in market capitalization over the past year. According to a recent analysis, TTM Technologies, Viant Technology, and Willdan Group emerged as the top three gainers, achieving increases of 213%, 199%, and 245%, respectively, for the 12 months ending September 30.
These three companies led a list tracked by the Orange County Business Journal, which monitored 40 publicly traded companies, each holding a market cap exceeding $100 million. Despite the impressive gains of these firms, the collective market capitalization of this group witnessed a decline of 4.4%, bringing the total to $210.1 billion. This contrasts sharply with the S&P 500, which increased by 17% during the same period.
Viant Technology, headquartered in Irvine, has shown a resilient performance even while facing headwinds such as tariffs affecting the Orange County market landscape. The company reported a substantial revenue increase, reaching $306.5 million for Q1 2025, which is a 30.6% growth compared to the previous year. Key to Viant’s future success is its advanced AI-powered tools in programmatic advertising and Connected TV (CTV), which have enhanced its platform’s appeal, significantly increasing ad spending, particularly among mid-market brands and agencies.
In addition to TTM Technologies, Viant Technology, and Willdan Group, four other companies also showed remarkable market capitalization growth exceeding 100%. Alignment Healthcare Inc., Tarsus Pharmaceuticals Inc., loanDepot Inc., and Eaco Corp. each achieved notable gains. Rivian Automotive Inc., despite challenges posed by environmental policies from the Trump administration, reported a market cap increase of 68%.
While some companies thrived, others faced a decline. Chipotle Mexican Grill, the largest publicly traded company in Orange County, saw its market cap fall by nearly one-third to $52.8 billion. Similarly, Skyworks Solutions Inc., based in Irvine, reported a 24% reduction in market capitalization, dropping to $11.4 billion.
On a positive note, American Healthcare REIT experienced a market cap increase of 73% to $7.1 billion since its debut on the NYSE in February 2024, with stock prices climbing from $12 to over $43 per share by September 10, 2025. Aircraft component manufacturer Ducommun also saw its market capitalization rise by 94% to $1.4 billion, and developer FivePoint Holdings’ market cap grew by 64% to nearly $430 million. Pro-Dex Inc. and Kura Sushi USA also made the list with modest gains of 12% and 5.2%, respectively.
Despite the fluctuating market conditions, a survey conducted by California State University, Fullerton, reflects a rise in confidence among Orange County businesses. The overall business confidence index (OCBX) increased from 68.6% to 74.4%, indicating a more optimistic outlook among business leaders.
However, Viant Technology is not without its challenges. The company has experienced a decline in share value of over 30% since the release of its Q2 results, despite positive growth indicators. To bolster its position, Viant is focusing on enhancing its acquisition strategy, recently appointing Eric Sterns as Head of Corporate Development to lead merger and acquisition initiatives. The ongoing shift from traditional linear television to CTV is anticipated to be a significant growth opportunity, as advertising budgets are increasingly being reallocated to digital platforms.
In summary, the significant market capitalization gains reported by several Orange County companies stand in stark contrast to the overall decline experienced by the market as a whole. As these companies navigate economic challenges and capitalize on emerging trends, their performance may serve as a key barometer for the region’s economic resilience moving forward.
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Additional Resources
- Seeking Alpha: Viant Technology Sell-off Driven by Temporary Headwinds
- Wikipedia: Viant Technology
- Business Wire: Viant Announces Appointment of New Head of Corporate Development
- Google Search: Viant Technology
- Investing.com: Viant Technology’s SWOT Analysis
- Google Scholar: Viant Technology
- TradingView: Viant Technology Reports Strong Q2 2025 Financial Results
- Encyclopedia Britannica: Viant Technology
- Finimize: Viant Technology Grew Sales
- Google News: Viant Technology
Author: STAFF HERE COSTA MESA WRITER
COSTA MESA STAFF WRITER The COSTA MESA STAFF WRITER represents the experienced team at HERECostaMesa.com, your go-to source for actionable local news and information in Costa Mesa, Orange County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the OC Fair, Concerts in the Park, and Fish Fry. Our coverage extends to key organizations like the Costa Mesa Chamber of Commerce and Boys & Girls Clubs of Central Orange Coast, plus leading businesses in retail, fashion, and technology that power the local economy such as Vans, Experian, and South Coast Plaza. As part of the broader HERE network, including HEREAnaheim.com, HEREBeverlyHills.com, HERECoronado.com, HEREHollywood.com, HEREHuntingtonBeach.com, HERELongBeach.com, HERELosAngeles.com, HEREMissionViejo.com, HERESanDiego.com, and HERESantaAna.com, we provide comprehensive, credible insights into California's dynamic landscape.
