MFS 13F holdings
MFS reported its Q2 2026 13F on Aug 3, 2026. The filing shows a $314.7B US stock portfolio in 997 positions, 16% of it in the top five: Nvidia (4.3%), Alphabet (3.3%), Apple (2.8%), Amazon.com (2.8%) and Microsoft (2.8%). In Q2 2026 it added to 5, trimmed 21 and sold out of 12. At today's prices that book is down 4.2% since the quarter closed. This is an institutional book, so its moves mostly reflect client money flowing in and out and index changes, not one manager's conviction. 13F filings arrive up to 45 days after the quarter ends and cover long US-listed positions only, so they show where the money was, not where it is now; this is educational analysis, not investment advice.
Q2 2026 13F, filed Aug 3, 2026. Prices as of Oct 27, 2026. Refreshed weekly from SEC EDGAR.
How big is MFS' stock portfolio?
From the Q2 2026 13F, filed Aug 3, 2026. Prices are today's, so "since quarter-end" is how the book as filed has done since.
What does MFS own?
The positions in its Q2 2026 13F, largest first. The 40 largest of 997 are shown. "This site's filters" is how many of this site's 8 value filters the stock passes; a stock this site tracks links to its own analysis.
| Stock | Weight | Size | Shares vs. last quarter | Quarters held | Since quarter-end | This site's filters |
|---|---|---|---|---|---|---|
| NVDANvidia Corp | 4.3% | $13.7B62.5M shares | -4% | 4+ | -0.3% | 3/8 |
| GOOGLAlphabet Inc | 3.3% | $10.5B28.7M shares | +23% | 4+ | -12.6% | 5/8 |
| AAPLApple Inc | 2.8% | $8.9B30.4M shares | +0% | 4+ | +18.0% | 2/8 |
| AMZNAmazon.com Inc | 2.8% | $8.8B32.1M shares | +24% | 4+ | -8.3% | 8/8 |
| MSFTMicrosoft Corp | 2.8% | $8.8B20.4M shares | -20% | 4+ | +24.0% | 2/8 |
| AVGOBroadcom Inc | 1.7% | $5.5B12.1M shares | +35% | 4+ | -24.2% | 3/8 |
| TSMTaiwan Semiconductor-Sp Adr | 1.5% | $4.7B9.5M shares | -2% | 4+ | -12.1% | n/a |
| KLACKla Corp | 1.4% | $4.5B14.7M shares | +794% | 4+ | -49.6% | 2/8 |
| JPMJpmorgan Chase & Co | 1.3% | $4.0B12.3M shares | -16% | 4+ | +2.3% | 8/8 |
| Linde Plc | 1.0% | $3.3B4.9M shares | +4% | 4+ | n/a | n/a |
| Ubs Group AG | 1.0% | $3.2B62.9M shares | -4% | 4+ | n/a | n/a |
| CIThe Cigna Group | 0.9% | $2.9B10.4M shares | -10% | 4+ | +7.6% | 8/8 |
| MAMastercard Inc - A | 0.9% | $2.8B5.4M shares | -3% | 4+ | +16.1% | 2/8 |
| JNJJohnson & Johnson | 0.9% | $2.7B10.5M shares | -22% | 4+ | +4.8% | 3/8 |
| Medtronic Plc | 0.8% | $2.6B19.9M shares | -7% | 4+ | n/a | n/a |
| Aon Plc | 0.8% | $2.6B7.6M shares | -9% | 4+ | n/a | n/a |
| VVisa Inc-Class A Shares | 0.8% | $2.5B3.7M shares | -10% | 4+ | -40.8% | 2/8 |
| WATWaters Corp | 0.8% | $2.5B4.6M shares | -0% | 4+ | -14.2% | 2/8 |
| Seagate Technology Hldngs Pl | 0.8% | $2.5B2.6M shares | +1% | 4+ | n/a | n/a |
| BDXBecton Dickinson and Co | 0.8% | $2.5B8.7M shares | -5% | 4+ | -32.1% | 4/8 |
| FNVFranco-Nevada Corp | 0.8% | $2.4B11.0M shares | -0% | 4+ | n/a | n/a |
| TMOThermo Fisher Scientific Inc | 0.7% | $2.3B3.0M shares | -2% | 4+ | -9.7% | 4/8 |
| Willis Towers Watson Plc Ltd | 0.7% | $2.3B5.5M shares | -6% | 4+ | n/a | n/a |
| RTXRTX Corp | 0.7% | $2.2B11.7M shares | -17% | 4+ | +1.8% | 4/8 |
| EXMOCExxon Mobil Corp | 0.7% | $2.2B16.0M shares | -11% | 4+ | n/a | n/a |
| ADIAnalog Devices Inc | 0.7% | $2.2B5.4M shares | -13% | 4+ | +6.6% | 4/8 |
| SCHWSchwab (charles) Corp | 0.7% | $2.1B13.4M shares | -8% | 4+ | -44.0% | 6/8 |
| Eaton Corp Plc | 0.7% | $2.1B4.9M shares | +4% | 4+ | n/a | n/a |
| METAMETA Platforms Inc-Class A | 0.7% | $2.1B3.6M shares | -18% | 4+ | +8.1% | 8/8 |
| Chubb Limited | 0.6% | $2.0B5.9M shares | -10% | 4+ | n/a | n/a |
| APHAmphenol Corp | 0.6% | $1.9B10.5M shares | -25% | 4+ | -57.4% | 3/8 |
| AEMAgnico Eagle Mines Ltd | 0.6% | $1.9B11.9M shares | +1% | 4+ | +12.0% | n/a |
| MSMorgan Stanley | 0.6% | $1.9B9.2M shares | -22% | 4+ | -10.3% | 8/8 |
| CATCaterpillar Inc | 0.6% | $1.9B1.7M shares | +10% | 4+ | -33.8% | 4/8 |
| COPConocophillips | 0.6% | $1.9B18.0M shares | -11% | 4+ | +41.6% | 6/8 |
| MCKMckesson Corp | 0.6% | $1.9B2.4M shares | -16% | 4+ | +27.4% | 2/8 |
| GEVGE Vernova Inc | 0.6% | $1.8B1.6M shares | -5% | 4+ | -24.7% | 5/8 |
| NDAQNasdaq Inc | 0.6% | $1.8B23.3M shares | -20% | 4+ | +32.3% | 4/8 |
| Nxp Semiconductors N V | 0.6% | $1.8B6.5M shares | -15% | 4+ | n/a | n/a |
| UNPUnion Pacific Corp | 0.6% | $1.7B6.3M shares | -11% | 4+ | +8.4% | 5/8 |
What did MFS buy and sell in Q2 2026?
Compared with Q1 2026. A position counts as added or trimmed when its share count moved by 5% or more.
Bought (new)
No new positions.
Added to
Trimmed
Sold out
How has MFS' portfolio changed over time?
The reported stock book each quarter. It includes market moves as well as buying and selling.
| Quarter | Stock book | Positions | Change |
|---|---|---|---|
| Q3 2025 | $322.8B | 854 | n/a |
| Q4 2025 | $309.9B | 913 | -4.0% |
| Q1 2026 | $297.2B | 940 | -4.1% |
| Q2 2026 | $314.7B | 997 | +5.9% |
Does MFS hold options?
Puts and calls are reported at the notional value of the shares they control, so they sit apart from the stock book above.
| Underlying | Type | Notional | Shares controlled |
|---|---|---|---|
| n/aWelltower Inc | Call | $15.2M | 1.1M |
| n/aIshares Tr | Put | $173K | 186K |
Frequently asked questions about MFS
What does MFS own?
MFS's Q2 2026 13F lists 997 positions worth $314.7B. The largest are Nvidia (4.3%), Alphabet (3.3%), Apple (2.8%), Amazon.com (2.8%) and Microsoft (2.8%), together 16% of the book. The full table is above; each stock this site tracks links to its own analysis.
What did MFS buy and sell in Q2 2026?
Compared with Q1 2026, MFS added to 5, trimmed 21 and sold out of 12 (HON, Aptiv and Ascendis Pharma A/s and more). A position counts as added or trimmed when its share count moved by 5% or more.
How concentrated is MFS's portfolio?
The top position is 4% of the book, the top five 16% and the top ten 23%, across 997 positions. Estimated turnover last quarter was 25% of the book.
When does MFS file its next 13F?
Managers file within 45 days after each quarter ends. For the quarter ending Sep 30, 2026, the deadline is about Nov 16, 2026 (a weekend deadline moves to the next business day). This page updates when the filing is on EDGAR.
Can you see MFS's cost basis or profit?
No. A 13F lists positions at quarter-end, not what was paid or when, and it excludes shorts and non-US holdings. This page shows each stock's price change since the quarter closed (the whole book as filed is -4.2%, with 81% of it priced) and since the position first appeared, which is a rough read and not their profit.
Where does this data come from?
- Holdings: MFS's Form 13F-HR filings, listed on SEC EDGAR. The Q2 2026 book was filed Aug 3, 2026.
- Prices and tickers: today's prices are from Finnhub, matched to each filing's securities with OpenFIGI; "since quarter-end" compares today's price with the price implied by the filing (value divided by shares).
- Limits: a 13F covers long US-listed positions only, up to 45 days after the quarter ends: no shorts, no cost basis, no trades inside the quarter. Read the Editorial Standards for how this site treats filings, and Form 13F in the glossary.
About this page
This page lists everything in MFS's latest Form 13F (MFS): every position, what changed last quarter and how the stocks have moved since. Every figure comes from SEC filings and is refreshed weekly; read the Editorial Standards for the rules, or open Superinvestors to compare all 25 investors. Educational content only, not investment advice.