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2026-Q1 · 940 positions · $297.2B reported · filed 2026-05-14

PORT replays the filed quarters against SPY — return, risk, attribution and what changed since the previous book.

Massachusetts Financial Services Co's filer page →

Top holdings · as reported for 2026-Q1

TickerNameSectorWeight
NVDANVIDIA CORPORATIONInformation Technology3.9%
MSFTMICROSOFT CORPInformation Technology3.6%
AAPLAPPLE INCInformation Technology2.6%
GOOGLALPHABET INCCommunication Services2.3%
AMZNAMAZON COM INCConsumer Discretionary2.2%
JPMJPMORGAN CHASE & COFinancials1.5%
AVGOBROADCOM INCInformation Technology1.2%
TSMTAIWAN SEMICONDUCTOR MFG LTDInformation Technology1.1%
JNJJOHNSON & JOHNSONHealth Care1.1%
CITHE CIGNA GROUPHealth Care1.0%

10 of 940 reported positions.

Versus 2025-Q4: 90 new · 242 added · 498 trimmed · 110 held · 63 exited

Sector mix: Information Technology 21.8% · Financials 18.7% · Industrials 14.9% of the book · The five largest positions are 14.7% of the book.

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PORT — Massachusetts Financial Services Co · 13F 2026-Q1

Massachusetts Financial Services Co's filed 13F book, analyzed: return vs SPY, risk, attribution, what changed.

Pick a source — a fund manager's filed 13F, an ETF's holdings, or a saved portfolio — and every tab fills in. Or try an example:

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Hypothetical, modeled with hindsight — not real results, and no guide to future results. See the Disclaimer.