TLDR
- Cathie Wood’s Ark Invest bought shares in Nvidia, Iridium Communications, and Teradyne on Wednesday, adding to existing positions in all three companies
- Nvidia became the first company to reach $4 trillion market cap this summer and its shares have nearly doubled since April lows
- Iridium serves over 2.4 million subscribers with 5% year-over-year growth, expecting 30% bottom-line increases in 2025 and 2026
Cathie Wood’s Ark Invest purchased shares in three companies on Wednesday, continuing to add to existing positions in Nvidia, Iridium Communications, and Teradyne. The moves come as Wood’s largest exchange-traded fund has gained 31% this year, beating major market indexes that show single-digit gains in 2025.
Nvidia remains the crown jewel of Wood’s purchases. The AI chip maker became the first company to reach $4 trillion in market capitalization this summer. The stock hit another all-time high this week, trading at $173.19 per share.
The company faced challenges earlier in 2025. Nvidia shares dropped more than one-third of their value by the time they bottomed out in April. Two main factors drove the sell-off: news of a Chinese AI startup claiming it could deliver AI without Nvidia’s latest chips, and export restrictions on high-end H20 chips to China.
The recovery has been swift. Nvidia shares have nearly doubled since their April lows. The company reported revenue growth of 73% in its latest quarter, beating expectations.
Trade War Developments
U.S. Commerce Secretary Howard Lutnick told Reuters this week that resuming H20 chip sales to China could be used as a bargaining chip in negotiations. The goal is to secure more essential rare-earth elements from China in exchange.
Nvidia expects billions in quarterly charges from its inability to sell H20 chips in China. However, analysts project revenue and earnings per share to grow 52% and 47% respectively when the company reports next month.
The Chinese AI threat from DeepSeek appears to have been overblown. Nvidia’s strong quarterly results showed the company maintained its market position despite the competitive pressure.
Iridium Communications Growth
Iridium Communications serves over 2.4 million billable subscribers, representing 5% growth over the past year. The satellite communications company specializes in data and voice services.
Growth comes primarily from commercial Internet of Things applications. The company will report second-quarter results next week.
Iridium has achieved just one year of double-digit revenue growth over the past six years. However, the bottom line shows more promise.
Analysts expect Iridium’s business to grow 6% this year, slowing to 4% in 2026. They project bottom-line increases of more than 30% in both years.
Teradyne Recovery Story
Teradyne makes chip-testing equipment and has shown improving performance. The company’s revenue rose 5% last year after two consecutive years of double-digit declines.
The pace is accelerating. Teradyne has delivered double-digit revenue gains in back-to-back quarters recently. The stock has faced analyst downgrades in recent weeks, but Wood sees an opportunity.
Teradyne’s current trading range spans from $65.77 to $155.18 over the past 52 weeks. The stock closed Wednesday at $92.79, down 0.88% for the day.
Wood publishes Ark’s daily transactions at the end of every trading day. Her investment strategy focuses on disruptive innovation across multiple sectors. The recent purchases reflect her continued confidence in AI infrastructure, satellite communications, and semiconductor testing equipment.
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