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Grantham, Mayo, van Otterloo & Co. LLC

CIK:0001352662
Asset Manager
$33B AUM
608 holdings
Boston, MA, United States
Founded:1977
600 employees
Latest filing:Jun 30, 2025

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.

Top Buys
M
MSFTMICROSOFT CORP
+$621.9M
A
AVGOBROADCOM INC
+$553.1M
M
METAMETA PLATFORMS INC
+$452.6M
O
ORCLORACLE CORP
+$400.1M
L
LRCXLAM RESEARCH CORP
+$317.3M
Top Sells
O
OTISOTIS WORLDWIDE CORP
-$562.8M
U
UNHUNITEDHEALTH GROUP INC
-$496.9M
A
AAPLAPPLE INC
-$259.4M
V
VVISA INC
-$181.2M
E
ELVELEVANCE HEALTH INC
-$145.6M

Top Holdings

M
MSFTMICROSOFT CORP
+7.3%$2.42B
M
METAMETA PLATFORMS INC
+4.9%$1.64B
G
GOOGLALPHABET INC
+4.2%$1.38B
O
ORCLORACLE CORP
+3.8%$1.25B
A
AAPLAPPLE INC
+3.7%$1.23B

Equity Positions (598)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
M
MSFT
MICROSOFT CORP7.27%$2.42B4,859,939$219.66$497.41+$621.9M
M
META
META PLATFORMS INC4.94%$1.64B2,226,027$265.38$738.09+$452.6M
G
GOOGL
ALPHABET INC4.16%$1.38B7,853,396$104.58$176.23+$172.6M
O
ORCL
ORACLE CORP3.76%$1.25B5,708,423$63.07$218.63+$400.1M
A
AAPL
APPLE INC3.69%$1.23B5,974,046$121.55$205.17-$259.4M

Options Positions (4)

TickerSecurityActionTypeNotional ValueContractsUnderlying PricePremium PaidChange (Contracts)Change (Value)
H
HYG
ISHARES TRNew
Put
$131.6M3,470$80.65$80.65+3,470+$131.6M
C
COOP
MR COOPER GROUP INCNew
Put
$24.1M1,612$149.21$149.21+1,612+$24.1M
S
SUN
SUNOCO LP/SUNOCO FIN CORPNew
Put
$21.2M3,951$53.59$53.59+3,951+$21.2M
R
RKT
ROCKET COS INCNew
Put
$188.6K133$14.18$14.18+133+$188.6K

Industry Allocation

SERVICES-PREPACKAGED SOFTWARE
+13.7%
PHARMACEUTICAL PREPARATIONS
+9.8%
SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC.
+9.4%
SERVICES-BUSINESS SERVICES, NEC
+6.9%
SEMICONDUCTORS & RELATED DEVICES
+6.8%