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Grantham, Mayo, Van Otterloo & Co. LLC

Location
Boston, MA
Portfolio Value
Large $35,022,569,452
Diversification
Diversified
Filing Date
Global Rank
#185 / 7,976 ▲ 4
Top Industry
Software - Infrastructure 10.8%
3Y Alpha vs SPY
-6.0%
Period ended 9 months ago
Filed Nov 13, 2025 · 7mo
23 quarters · since Mar 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio
+51.3%
SPY
+76.5%
Annualised alpha
-6.1%
Max drawdown
−17.5%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

571 positions · as of Sep 30, 2025 · Δ vs Jun 30, 2025
Top Position
7.3%
−0.1 pts
Top 5
25.2%
+0.9 pts
Top 10
40.9%
+1.8 pts
HHI
259
Dec 2022 → Sep 2025 · range 135 – 259
Diversified+9

Portfolio Trend

23 quarters · across all stocks

Sector Breakdown

As of Sep 30, 2025
Sector % Portfolio Value
Technology 35.8% $12,546,939,221
Healthcare 23.5% $8,234,913,692
Communication Services 10.8% $3,766,072,625
Financial Services 10.4% $3,637,425,106
Consumer Cyclical 7.0% $2,454,330,791
Consumer Defensive 4.7% $1,636,256,987
Industrials 3.6% $1,248,760,032
Energy 2.3% $800,979,821
Basic Materials 1.6% $562,999,507
Utilities 0.2% $85,877,471
Real Estate 0.1% $47,422,632
Unclassified 0.0% $591,567

Last Quarter's Activity

Export CSV
Sep 30, 2025 vs Jun 30, 2025

Added To

Positions the filer increased
25 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
25 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
25 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
571 positions · $35,022,569,452 total · as of Sep 30, 2025
Showing 1–50 of 571 positions by value · page 1 of 12
Ticker Company Shares Value (USD) % of Portfolio History