ARK Invest bought Cloudflare, Block, and Securitize while selling Illumina, Shopify, 10x Genomics, and AMD on August 18, adding new positions in Rocket Lab, Cerebras Systems, and several biotech names on the same tape.
Cloudflare was the day’s headline internet-infrastructure buy, Block was the largest by dollar value, and Securitize marked another add on the tokenization firm’s recent weakness.
ARK Adds Cloudflare, a Stablecoin Payments Play
The ARK Fintech Innovation ETF (ARKF) bought 2,996 shares of Cloudflare (NYSE: NET) at the day’s $300.00 close, per the firm’s trade disclosures. The buy is worth about $898,800 and equal to 0.1187% of the fund. Cloudflare’s market cap sits at $107.28 billion, with a 52-week range of $158.83 to $332.22.
Cloudflare is drawing attention from crypto followers. The company co-founded the x402 Foundation with Coinbase, launched a Monetization Gateway in July that settles API payments in USDC stablecoins, and rolled out a stablecoin wallet for AI agents in early August. Q2 revenue came in at $696 million (up 36% year-over-year), and the firm priced a $2.175 billion 0% convertible note offering on August 10.
The purchase adds to ARK’s steady Cloudflare accumulation, which included a $32.4 million buy on August 7 and a $9.8 million top-up on August 12.
Block and Securitize Anchor the Fintech Adds
Block, Inc. (NYSE: XYZ) was ARK’s largest trade of the day by dollar value. ARKK added 15,859 shares and ARKF picked up 951 more, a combined 16,810 shares worth roughly $1.35 million at Block’s $80.28 close.
Block is a name of particular interest to crypto followers. Beyond its Square and Cash App businesses, the company holds bitcoin on its balance sheet, runs the Bitkey self-custody wallet, and has enabled bitcoin payments across Square checkouts. Q2 revenue reached $6.62 billion, up 9% year-over-year, and Block raised its full-year guidance.
ARKF also added 31,340 shares of Securitize (NYSE: SECZ) at a reference price near $5.84, a purchase of about $185,000 and 0.0222% of the fund. The buy extends ARK’s layered accumulation after the tokenization firm reported Q2 revenue of $14.4 million (down 5% year-over-year) against a $20.6 million estimate, sending the stock down 20% on August 12. ARK bought 192,702 SECZ shares on August 13 and 189,796 more on August 17.
Securitize went public on the NYSE on July 2 via a SPAC merger with Cantor Equity Partners II at a $1.25 billion pre-money valuation. The company runs the transfer-agent and issuance infrastructure behind BlackRock’s BUIDL and reports over $5 billion in tokenized assets under management (AUM) as of July.
Rocket Lab, Cerebras, and Biotech Names Round Out the Buying
ARKK’s largest addition by fund weight was 160,890 shares of Rocket Lab Corp (RKLB), or 0.2005% of the fund. The Innovation ETF also picked up 27,311 shares of Cerebras Systems (CBRS), and ARKW added another 7,778 Cerebras shares, pushing the AI-hardware name into two funds on the day.
ARKG added 26,246 shares of Ionis Pharmaceuticals (IONS), 35,501 shares of Tempus AI (TEM), 5,614 shares of Scribe Therapeutics (SCTX), and 59,279 shares of Perceptive Capital Solutions (FRNM).
Selling in Illumina, Shopify, 10x Genomics, and AMD
ARKK offloaded 50,071 Shopify (SHOP) shares (0.1161% of the ETF), 32,648 Illumina (ILMN) shares (0.0969%), and 19,955 shares of 10x Genomics (TXG). ARKG cut 10x Genomics by another 16,523 shares, along with 21,947 CareDx (CDNA) shares and 20,847 AtaiBeckley (ATAI) shares.
ARKW clipped 3,679 Advanced Micro Devices (AMD) shares, continuing ARK’s recent pattern of exiting AMD while accumulating Nvidia and Cerebras. Small sales of Brera Holdings across ARKF, ARKK, and ARKW rounded out the disclosure.
How the Trades Fit ARK’s Recent Pattern
The August 18 tape continues themes visible in ARK’s recent disclosures. The firm has been steadily building positions in stablecoin, tokenization, and internet-infrastructure names such as Cloudflare and Securitize while trimming semiconductor and e-commerce holdings including AMD and Shopify.
Because ARK’s trade notifications do not state reasons for individual transactions, these moves should not be interpreted as explicit views on the companies’ future prospects. The disclosure reflects portfolio changes and should not, on its own, be treated as a recommendation to buy, sell, or hold the securities involved.
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