Cayman Islands Capture 75% of Offshore Hedge Funds as China Cuts U.S. Treasury Holdings to 2008 Low

Why It Matters

The concentration of offshore hedge‑fund activity in the Cayman Islands creates a new, highly leveraged source of demand for U.S. Treasuries. While this can temporarily ease financing pressures, it also introduces systemic risk if leveraged positions unwind rapidly. At the same time, China’s pull‑back removes a historically stable sovereign buyer, potentially narrowing the pool of long‑term investors and raising the cost of borrowing for the U.S. government. Both dynamics signal a broader reconfiguration of global capital flows, where private, tax‑advantaged jurisdictions play an outsized role in financing the world’s reserve currency. Policymakers will need to balance the benefits of this liquidity against the heightened opacity and geopolitical implications of a reduced Chinese presence in the Treasury market.

Key Takeaways

• Approximately 75% of offshore hedge funds are domiciled in the Cayman Islands.
• Cayman Islands’ U.S. Treasury holdings are estimated at $1.4‑$1.85 trillion by end‑2024, up from $427 billion reported in Nov 2025.
• Nearly 40% of all new Treasury notes and bonds issued since 2022 were purchased in the Cayman Islands.
• China’s U.S. Treasury holdings have fallen to their lowest level since 2008, after being the largest holder in 2019.
• The Federal Reserve has opened an investigation into opaque basis‑trade activity by Cayman‑based hedge funds.

Pulse Analysis

The Cayman Islands have evolved from a tax haven into a pivotal node in the global Treasury market. The 1993 Mutual Funds Law created a regulatory environment that attracted hedge funds seeking flexibility and low tax burdens. Over the past three decades, that ecosystem has matured into a sophisticated, albeit opaque, market maker for U.S. debt. The current $1.5 trillion exposure reflects not just passive holding but active trading strategies—chief among them basis trades—that amplify both liquidity and risk.

China’s retreat from U.S. Treasuries marks a strategic shift in its reserve management. Historically, Beijing used Treasury holdings as a diplomatic lever and a safe‑asset anchor. The decline suggests a reallocation toward domestic bonds, other sovereign assets, or a response to heightened U.S.–China tensions. This withdrawal reduces the diversity of the Treasury investor base, making the market more dependent on private, leveraged participants whose behavior can be more volatile.

Looking ahead, the Federal Reserve’s investigation could lead to tighter reporting requirements or limits on leveraged Treasury positions, which would curtail the current surge in Cayman‑based buying. Simultaneously, U.S. policymakers may consider measures to diversify the foreign holder base, perhaps by encouraging more sovereign or pension‑fund participation. The interplay between these regulatory moves and the strategic choices of major economies like China will shape Treasury financing costs and market stability for years to come.