Grantham, Mayo, van Otterloo & Co. LLC
Grantham, Mayo, Van Otterloo & Co. LLC (GMO) is a global investment management firm founded in Boston in 1977. The firm is known for its contrarian, value-oriented approach, leveraging quantitative models, and a focus on mean reversion. GMO partners primarily with sophisticated institutions, financial intermediaries, and families worldwide. The firm has a history of success in identifying and profiting from economic bubbles and today offers a range of equity, fixed income, multi-asset, and alternative strategies. GMO employs around 600 people globally, mainly headquartered in Boston, with additional offices in major international financial centers.
Investment Strategy
GMO employs a long-term, valuation-based, and contrarian investment philosophy, believing that asset classes and markets eventually revert to historical averages. The firm uses quantitative research and fundamental analysis to identify assets with attractive risk-reward profiles, often allocating capital to undervalued or out-of-favor segments. Its strategies encompass equities, fixed income, multi-asset, and alternatives, and GMO is known for its willingness to take non-consensus positions based on its models, frequently eschewing market optimism for periods of caution and defensiveness. ESG considerations are integrated where they are viewed as materially relevant to investment outcomes.
Latest 13F Filing Activity
Grantham, Mayo, van Otterloo & Co. LLC filed their most recent 13F report on Jun 30, 2025 disclosing 598 equity positions and 4 options positions with a total 13F market value of $33B. The fund increased holdings in Microsoft Corp., Broadcom Inc., Meta Platforms Inc. among other positions. Grantham, Mayo, van Otterloo & Co. LLC reduced exposure to Otis Worldwide Corp., Unitedhealth Group Inc., Apple Inc. among others.
Top Holdings
Equity Positions (598)
| Ticker | Security | Weight | Market Value | Shares | Avg Cost | Price | Change (QoQ) |
|---|---|---|---|---|---|---|---|
M MSFT | MICROSOFT CORP | 7.27% | $2.42B | 4,859,939 | $219.66 | $497.41 | +$621.9M |
M META | META PLATFORMS INC | 4.94% | $1.64B | 2,226,027 | $265.38 | $738.09 | +$452.6M |
G GOOGL | ALPHABET INC | 4.16% | $1.38B | 7,853,396 | $104.58 | $176.23 | +$172.6M |
O ORCL | ORACLE CORP | 3.76% | $1.25B | 5,708,423 | $63.07 | $218.63 | +$400.1M |
A AAPL | APPLE INC | 3.69% | $1.23B | 5,974,046 | $121.55 | $205.17 | -$259.4M |
Options Positions (4)
| Ticker | Security | Action | Type | Notional Value | Contracts | Underlying Price | Premium Paid | Change (Contracts) | Change (Value) |
|---|---|---|---|---|---|---|---|---|---|
H HYG | ISHARES TR | New | Put | $131.6M | 3,470 | $80.65 | $80.65 | +3,470 | +$131.6M |
C COOP | MR COOPER GROUP INC | New | Put | $24.1M | 1,612 | $149.21 | $149.21 | +1,612 | +$24.1M |
S SUN | SUNOCO LP/SUNOCO FIN CORP | New | Put | $21.2M | 3,951 | $53.59 | $53.59 | +3,951 | +$21.2M |
R RKT | ROCKET COS INC | New | Put | $188.6K | 133 | $14.18 | $14.18 | +133 | +$188.6K |