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MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Location
Boston, MA
Portfolio Value
Mega $291,151,728,376
Diversification
Diversified
Reports for
MFS Institutional Advisors, Inc. MFS Investment Management CO (LUX) S.A.R.L. MFS International Singapore Pte. Ltd. MFS International (U.K.) Ltd. MFS Investment Management K.K. MFS Heritage Trust CO MFS INVESTMENT MANAGEMENT CANADA LTD MFS International Australia Pty Ltd
+ 1 more NEW YORK LIFE INVESTMENT MANAGEMENT LLC
Filing Date
Global Rank
#40 / 8,651 ▼ 3
Top Industry
Semiconductors 10.9%
3Y Alpha vs SPY
+17.4%
Period ended 58 days ago
Filed Aug 12, 2026 · 15d
26 quarters · since Mar 2020

Clone Performance

Aug 2023–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio
+161.0%
SPY
+74.1%
Annualised alpha
+17.4%
Max drawdown
−17.0%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends. Captured split ratios restate closes onto one basis; only an unusable ratio can exclude earlier closes for that listing. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

983 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
4.3%
+0.2 pts
Top 5
16.3%
+1.5 pts
Top 10
23.4%
+2.5 pts
HHI
94
Sep 2023 → Jun 2026 · range 77 – 99
Diversified+6

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Technology 25.1% $73,170,651,340
Financial Services 17.0% $49,481,853,628
Industrials 13.9% $40,483,596,944
Healthcare 10.8% $31,515,808,276
Consumer Cyclical 7.8% $22,738,771,286
Communication Services 6.2% $18,077,119,802
Utilities 5.0% $14,453,681,102
Basic Materials 4.6% $13,251,496,452
Energy 4.1% $11,958,999,817
Consumer Defensive 3.0% $8,875,621,714
Real Estate 2.4% $7,093,425,622
Unclassified 0.0% $50,702,393

Last Quarter's Activity

Export CSV
Jun 30, 2026 vs Mar 31, 2026

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
983 tracked positions · $291,151,728,376 total · as of Jun 30, 2026
Showing 1–50 of 983 positions by value · page 1 of 20
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.