Quick Summary
- On May 22, ARK Invest acquired 42,126 Cerebras Systems shares valued at approximately $11.8 million via ARKK and ARKW ETFs
- The fund simultaneously purchased 105,810 Twist Bioscience shares ($6.2 million) and 25,029 Bullish shares ($900,000)
- ARK divested 1,859 Advanced Micro Devices shares totaling $835,787, extending a weeklong divestment pattern
- Cerebras received expedited approval for S&P index addition, taking effect May 25, skipping the typical year-long waiting requirement
- The AI chip maker derives 86% of total revenue from merely two Abu Dhabi-based customers, creating significant concentration risk
Cathie Wood’s ARK Invest executed several notable transactions on Friday, May 22, 2026. The most significant transaction involved taking a position in Cerebras Systems, a newly public artificial intelligence semiconductor manufacturer.
Through its ARKK and ARKW exchange-traded funds, ARK acquired 42,126 Cerebras shares. The purchase totaled approximately $11.8 million. This transaction builds upon earlier Cerebras acquisitions ARK completed in preceding weeks.
Cerebras launched its public offering on May 14. The initial pricing was set at $185 per share, but trading commenced at $350 and momentarily reached $385 during the debut session. By week’s end, the stock stabilized around the $280 level.
The company’s market capitalization approached $100 billion at its highest point. This valuation emerged despite financial results showing $510 million in annual revenue and $87.9 million in net profit for the 2025 fiscal year.
Investor demand for the initial public offering exceeded available shares by a factor of 20. This overwhelming interest suggests market participants are betting on the company’s technological capabilities more than its present financial performance.
Cerebras’s Unique Technology Approach
Cerebras manufactures a semiconductor chip that utilizes an entire silicon wafer as a single unit rather than dividing it into individual components. This produces one massive processor comparable in size to a dinner plate. According to the company, this architecture eliminates latency issues typically associated with connecting multiple separate chips.
This innovative design has captured the attention of investors focused on next-generation AI computing infrastructure.
Accelerated S&P Inclusion and Market Impact
On May 19, S&P Dow Jones announced that Cerebras would join its index on an accelerated timeline, becoming effective May 25. The semiconductor firm circumvented the conventional 12-month seasoning period by satisfying specific market capitalization requirements.
Index membership requires passive funds tracking the S&P to purchase shares automatically. This mechanism generated additional demand immediately following the announcement.
GuruFocus assigns Cerebras a GF Score of 42 on a 100-point scale. The company’s financial strength receives a rating of 3 out of 10, indicating its early developmental stage.
A major concern highlighted by market analysts involves revenue concentration. Two customers with Abu Dhabi connections represent 86% of the company’s entire revenue stream. The loss of either relationship would create substantial challenges for revenue replacement.
Public records show no insider trading activity from company executives during the previous three-month period.
Additional ARK Portfolio Adjustments
ARK simultaneously purchased 105,810 Twist Bioscience shares valued at $6.2 million, demonstrating ongoing commitment to the biotechnology sector. The fund also accumulated 25,029 Bullish shares across three ETFs, totaling approximately $900,000.
Regarding divestments, ARK liquidated 1,859 Advanced Micro Devices shares for $835,787 through its ARKW ETF. This sale extends a consistent pattern of reducing the fund’s AMD exposure throughout the previous week.
