The curated database of hedge funds that publish investor letters. Research by geography, strategy, and schools of thought.
| # | Fund | Strategy | Style | Geography | AUM | Latest Letter |
|---|---|---|---|---|---|---|
As of Sep 24, 2026
GMO did not disclose specific quarterly or year-to-date fund performance returns, exposure metrics, or leverage figures in this asset allocation letter. The managers frame their strategy around structural market mechanics, warning that the prevailing US equity regime is highly fragile due to extreme valuations, unhedged investor allocations, and an unprecedented wave of impending equity supply that risks triggering a sharp market downturn. The authors highlight a structural shift toward market inelasticity driven by the rise of passive indexing and benchmark-constrained mandates. With only 30% of market capital acting opportunistically, exogenous equity flows exert outsized price impacts. Historically, each 1% net increase in equity supply reduces aggregate equity values by roughly 4% over the following twelve months, exposing equity markets to sharp multi-year drawdowns when primary issuance expands. Looking ahead, GMO identifies imminent supply shocks as the primary catalyst likely to burst the artificial intelligence bubble, preceding any ultimate demand shortfall. Massive equity issuance—including a $970 billion SpaceX lockup release, multi-trillion-dollar IPOs from Anthropic and OpenAI, and ongoing secondary dilution from hyperscaler capital expenditures—threatens to inflict a 20% return headwind over the next 12 to 18 months.
In an increasingly inelastic and benchmark-constrained stock market, an unprecedented wave of new equity supply from private AI and tech valuations will overwhelm active buyer liquidity and catalyze a market-wide rollover.
GMO expects US equity returns to fall roughly 20% below normal over the next 12 to 18 months as substantial equity issuance overwhelms inelastic demand and exposes extreme valuations.
Neutral / Balanced
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