Full & Historical Holdings
Mid Cap Growth Fund
View Historical Holdings by Month
| Based on Market Value | Based on Equivalent Exposure | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| CUSIP/SEDOL | Ticker |
Securities
(on 12-31-25)
|
Shares or Par Amount | Value | Percent of Net Assets | Value | Percent of Net Assets | Market Cap ($mm) |
GICS Sectors
The Global Industry Classification Standard (GICS®) was developed by and/or is the exclusive property of MSCI, Inc. and S&P Global Market Intelligence Inc. ("S&P Global Market Intelligence"). GICS is a service mark of MSCI and S&P Global Market Intelligence and has been licensed for use by MFS. MFS has applied its own internal sector/industry classification methodology for equity securities and non-equity securities that are unclassified by GICS. |
Country | |
| 44320110 | HWM US | Howmet Aerospace Inc | 2,852,505 | $584,820,575.10 | 4.14% | $584,820,575.10 | 4.14% | 82,623.06 | Industrials | United States | |
| 87405410 | TTWO US | Take-Two Interactive Software Inc | 1,886,157 | $482,912,776.71 | 3.42% | $482,912,776.71 | 3.42% | 47,308.93 | Communication Services | United States | |
| 92840M10 | VST US | Vistra Corp | 2,315,677 | $373,588,170.41 | 2.64% | $373,588,170.41 | 2.64% | 54,662.72 | Utilities | United States | |
| 60983910 | MPWR US | Monolithic Power Systems Inc | 385,713 | $350,196,546.96 | 2.47% | $349,594,834.68 | 2.47% | 43,420.99 | Information Technology | United States | |
| 40171V10 | GWRE US | Guidewire Software Inc | 1,685,861 | $338,874,919.61 | 2.40% | $338,874,919.61 | 2.40% | 17,089.70 | Information Technology | United States | |
| 63230710 | NTRA US | Natera Inc | 1,417,224 | $324,671,846.16 | 2.30% | $324,671,846.16 | 2.30% | 31,687.99 | Health Care | United States | |
| 50212V10 | LPLA US | LPL Financial Holdings Inc | 897,884 | $320,697,228.28 | 2.27% | $320,697,228.28 | 2.27% | 28,587.04 | Financials | United States | |
| 12504L10 | CBRE US | CBRE Group Inc | 1,930,823 | $310,457,030.17 | 2.20% | $310,457,030.17 | 2.20% | 47,849.98 | Real Estate | United States | |
| 53803410 | LYV US | Live Nation Entertainment Inc | 2,156,753 | $307,337,302.50 | 2.18% | $307,337,302.50 | 2.18% | 33,450.59 | Communication Services | United States | |
| 87256C10 | TKO US | TKO Group Holdings Inc | 1,430,847 | $299,047,023.00 | 2.12% | $299,047,023.00 | 2.12% | 16,494.77 | Communication Services | United States | |
| 77104910 | RBLX US | ROBLOX Corp | 3,505,457 | $284,047,180.71 | 2.01% | $284,047,180.71 | 2.01% | 56,872.28 | Communication Services | United States | |
| 74762E10 | PWR US | Quanta Services Inc | 667,580 | $281,758,814.80 | 1.99% | $281,758,814.80 | 1.99% | 62,935.85 | Industrials | United States | |
| 04351P10 | ASND US | Ascendis Pharma AS ADR | 1,279,738 | $272,891,331.12 | 1.93% | $272,891,331.12 | 1.93% | 13,039.94 | Health Care | Denmark | |
| 05464C10 | AXON US | Axon Enterprise Inc | 479,513 | $272,329,818.09 | 1.93% | $272,329,818.09 | 1.93% | 44,815.62 | Industrials | United States | |
| 63110310 | NDAQ US | Nasdaq Inc | 2,611,865 | $253,690,447.45 | 1.80% | $253,690,447.45 | 1.80% | 55,630.82 | Financials | United States | |
| 14686910 | CVNA US | Carvana Co | 567,500 | $239,496,350.00 | 1.70% | $239,496,350.00 | 1.70% | 59,683.41 | Consumer Discretionary | United States | |
| 89623910 | TRMB US | Trimble Inc | 2,921,777 | $228,921,227.95 | 1.62% | $228,921,227.95 | 1.62% | 18,641.11 | Information Technology | United States | |
| 18915M10 | NET US | Cloudflare Inc | 1,152,548 | $227,224,838.20 | 1.61% | $227,224,838.20 | 1.61% | 69,042.32 | Information Technology | United States | |
| 16411R20 | LNG US | Cheniere Energy Inc | 1,165,873 | $226,634,052.47 | 1.60% | $226,634,052.47 | 1.60% | 42,221.51 | Energy | United States | |
| 97415510 | WING US | Wingstop Inc | 909,649 | $216,942,190.01 | 1.54% | $216,942,190.01 | 1.54% | 6,626.92 | Consumer Discretionary | United States | |
| 14316J10 | CG US | Carlyle Group Inc | 3,660,200 | $216,354,422.00 | 1.53% | $216,354,422.00 | 1.53% | 21,303.86 | Financials | United States | |
| 12201710 | BURL US | Burlington Stores Inc | 747,119 | $215,805,323.15 | 1.53% | $215,805,323.15 | 1.53% | 18,176.47 | Consumer Discretionary | United States | |
| 57479510 | MASI US | Masimo Corp | 1,643,450 | $213,747,107.00 | 1.51% | $213,747,107.00 | 1.51% | 6,986.04 | Health Care | United States | |
| 92916010 | VMC US | Vulcan Materials Co | 729,132 | $207,963,029.04 | 1.47% | $207,963,029.04 | 1.47% | 37,686.38 | Materials | United States | |
| 12738710 | CDNS US | Cadence Design Systems Inc | 652,722 | $204,027,842.76 | 1.44% | $204,027,842.76 | 1.44% | 85,084.59 | Information Technology | United States | |
| 67103H10 | ORLY US | O'Reilly Automotive Inc | 2,217,358 | $202,245,223.18 | 1.43% | $202,245,223.18 | 1.43% | 77,239.55 | Consumer Discretionary | United States | |
| 22266T10 | CPNG US | Coupang Inc | 8,411,268 | $198,421,812.12 | 1.40% | $198,421,812.12 | 1.40% | 43,004.57 | Consumer Discretionary | South Korea | |
| 00846U10 | A US | Agilent Technologies Inc | 1,411,097 | $192,007,968.79 | 1.36% | $192,007,968.79 | 1.36% | 38,575.69 | Health Care | United States | |
| G93A5A10 | VIK US | Viking Holdings Ltd | 2,668,781 | $190,577,651.21 | 1.35% | $190,577,651.21 | 1.35% | 31,678.19 | Consumer Discretionary | United States | |
| B15C4L | CSU CN | Constellation Software Inc/Canada | 77,835 | $187,282,996.30 | 1.33% | $187,216,836.55 | 1.33% | 50,973.20 | Information Technology | Canada | |
| 23804L10 | DDOG US | Datadog Inc | 1,370,044 | $186,312,283.56 | 1.32% | $186,312,283.56 | 1.32% | 47,671.97 | Information Technology | United States | |
| 30063P10 | EXAS US | Exact Sciences Corp | 1,829,992 | $185,853,987.52 | 1.32% | $185,853,987.52 | 1.32% | 19,287.96 | Health Care | United States | |
| 44857910 | H US | Hyatt Hotels Corp | 1,095,104 | $175,567,073.28 | 1.24% | $175,567,073.28 | 1.24% | 15,276.73 | Consumer Discretionary | United States | |
| 26142V10 | DKNG US | DraftKings Inc | 4,931,528 | $169,940,454.88 | 1.20% | $169,940,454.88 | 1.20% | 17,153.24 | Consumer Discretionary | United States | |
| G8473T10 | STE US | STERIS PLC | 660,880 | $167,546,297.60 | 1.19% | $167,546,297.60 | 1.19% | 24,882.23 | Health Care | United States | |
| 03990B10 | ARES US | Ares Management Corp | 1,023,492 | $165,427,011.96 | 1.17% | $165,427,011.96 | 1.17% | 35,611.13 | Financials | United States | |
| 77070010 | HOOD US | Robinhood Markets Inc | 1,424,045 | $161,059,489.50 | 1.14% | $161,059,489.50 | 1.14% | 101,639.35 | Financials | United States | |
| 13321L10 | CCJ US | Cameco Corp | 1,700,149 | $155,546,632.01 | 1.10% | $155,546,632.01 | 1.10% | 39,835.40 | Energy | Canada | |
| 16516773 | EXE US | Expand Energy Corp | 1,338,242 | $147,688,387.12 | 1.05% | $147,688,387.12 | 1.05% | 26,284.41 | Energy | United States | |
| 67929510 | OKTA US | Okta Inc | 1,658,649 | $143,423,379.03 | 1.02% | $143,423,379.03 | 1.02% | 15,324.91 | Information Technology | United States | |
| 94184810 | WAT US | Waters Corp | 375,362 | $142,573,748.46 | 1.01% | $142,573,748.46 | 1.01% | 22,618.00 | Health Care | United States | |
| 87603010 | TPR US | Tapestry Inc | 1,111,670 | $142,038,075.90 | 1.01% | $142,038,075.90 | 1.01% | 26,282.29 | Consumer Discretionary | United States | |
| 89400J10 | TRU US | TransUnion | 1,616,219 | $138,590,779.25 | 0.98% | $138,590,779.25 | 0.98% | 16,652.65 | Industrials | United States | |
| 75991610 | RGEN US | Repligen Corp | 822,965 | $134,851,044.90 | 0.95% | $134,851,044.90 | 0.95% | 9,223.80 | Health Care | United States | |
| 23156110 | CW US | Curtiss-Wright Corp | 243,543 | $134,257,949.61 | 0.95% | $134,257,949.61 | 0.95% | 20,455.98 | Industrials | United States | |
| 02043Q10 | ALNY US | Alnylam Pharmaceuticals Inc | 331,878 | $131,971,286.70 | 0.93% | $131,971,286.70 | 0.93% | 52,535.06 | Health Care | United States | |
| 05605H10 | BWXT US | BWX Technologies Inc | 688,050 | $118,922,562.00 | 0.84% | $118,922,562.00 | 0.84% | 15,802.20 | Industrials | United States | |
| V7780T10 | RCL US | Royal Caribbean Cruises Ltd | 415,180 | $116,217,185.60 | 0.82% | $115,802,005.60 | 0.82% | 76,065.10 | Consumer Discretionary | United States | |
| 36168Q10 | GFL US | GFL Environmental Inc | 2,688,819 | $115,484,776.05 | 0.82% | $115,484,776.05 | 0.82% | 16,065.06 | Industrials | Canada | |
| 19247G10 | COHR US | Coherent Corp | 602,938 | $111,284,266.66 | 0.79% | $111,284,266.66 | 0.79% | 29,005.84 | Information Technology | United States | |
| 09073M10 | TECH US | Techne Corp | 1,802,620 | $106,012,082.20 | 0.75% | $106,012,082.20 | 0.75% | 9,163.34 | Health Care | United States | |
| 14365830 | CCL US | Carnival Corp | 3,294,817 | $100,623,711.18 | 0.71% | $100,623,711.18 | 0.71% | 40,068.48 | Consumer Discretionary | United States | |
| L8681T10 | SPOT US | Spotify Technology SA | 171,023 | $99,314,766.33 | 0.70% | $99,314,766.33 | 0.70% | 119,675.04 | Communication Services | Sweden | |
| 15986410 | CRL US | Charles River Laboratories International Inc | 495,103 | $98,763,146.44 | 0.70% | $98,763,146.44 | 0.70% | 9,817.50 | Health Care | United States | |
| 71377A10 | PFGC US | Performance Food Group Co | 1,078,547 | $96,982,946.24 | 0.69% | $96,982,946.24 | 0.69% | 14,100.55 | Consumer Staples | United States | |
| 42829110 | HXL US | Hexcel Corp | 1,310,736 | $96,863,390.40 | 0.69% | $96,863,390.40 | 0.69% | 5,882.87 | Industrials | United States | |
| 56275010 | MANH US | Manhattan Associates Inc | 557,115 | $96,553,600.65 | 0.68% | $96,553,600.65 | 0.68% | 10,443.36 | Information Technology | United States | |
| 17177930 | CIEN US | Ciena Corp | 398,381 | $93,169,364.47 | 0.66% | $93,169,364.47 | 0.66% | 32,979.41 | Information Technology | United States | |
| 91332U10 | U US | Unity Software Inc | 2,099,763 | $92,746,531.71 | 0.66% | $92,746,531.71 | 0.66% | 18,900.91 | Information Technology | United States | |
| 03852U10 | ARMK US | Aramark | 2,485,660 | $91,621,427.60 | 0.65% | $91,621,427.60 | 0.65% | 9,691.75 | Consumer Discretionary | United States | |
| 46631310 | JBL US | Jabil Inc | 387,575 | $88,374,851.50 | 0.63% | $88,374,851.50 | 0.63% | 24,507.82 | Information Technology | United States | |
| H8088L10 | SRAD US | Sportradar Group AG | 3,643,288 | $86,600,955.76 | 0.61% | $86,600,955.76 | 0.61% | 7,118.16 | Consumer Discretionary | Switzerland | |
| 92537N10 | VRT US | Vertiv Holdings Co | 521,169 | $84,434,589.69 | 0.60% | $84,434,589.69 | 0.60% | 61,942.63 | Industrials | United States | |
| G7997R10 | STX US | Seagate Technology Holdings PLC | 306,310 | $84,581,380.30 | 0.60% | $84,354,710.90 | 0.60% | 58,811.77 | Information Technology | United States | |
| 09057220 | BIO US | Bio-Rad Laboratories Inc | 278,278 | $84,315,451.22 | 0.60% | $84,315,451.22 | 0.60% | 8,172.85 | Health Care | United States | |
| 15118V20 | CELH US | Celsius Holdings Inc | 1,714,012 | $78,398,908.88 | 0.55% | $78,398,908.88 | 0.55% | 11,791.10 | Consumer Staples | United States | |
| 22160N10 | CSGP US | CoStar Group Inc | 1,159,148 | $77,941,111.52 | 0.55% | $77,941,111.52 | 0.55% | 28,497.84 | Real Estate | United States | |
| 70557310 | PEGA US | Pegasystems Inc | 1,286,813 | $76,848,472.36 | 0.54% | $76,848,472.36 | 0.54% | 10,184.95 | Information Technology | United States | |
| 58507V10 | MDLN US | Medline Inc | 1,798,467 | $75,535,614.00 | 0.53% | $75,535,614.00 | 0.53% | 55,176.11 | Health Care | United States | |
| G0260P10 | AS US | Amer Sports Inc | 1,986,832 | $74,208,175.20 | 0.53% | $74,208,175.20 | 0.53% | 20,686.12 | Consumer Discretionary | Finland | |
| 60937P10 | MDB US | MongoDB Inc | 154,987 | $65,046,494.03 | 0.46% | $65,046,494.03 | 0.46% | 34,159.31 | Information Technology | United States | |
| 516529 | ASM NA | ASM International NV | 103,478 | $62,378,473.58 | 0.44% | $62,378,473.58 | 0.44% | 29,736.17 | Information Technology | Netherlands | |
| 03674X10 | AR US | Antero Resources Corp | 1,729,392 | $59,594,848.32 | 0.42% | $59,594,848.32 | 0.42% | 10,630.70 | Energy | United States | |
| BNGDN8 | MRO LN | Melrose Industries PLC | 7,112,717 | $55,959,964.22 | 0.40% | $55,959,964.22 | 0.40% | 9,918.21 | Industrials | United Kingdom | |
| 53122975 | FWONK US | Liberty Media Corp-Liberty Formula One | 511,318 | $50,369,936.18 | 0.36% | $50,369,936.18 | 0.36% | 24,632.82 | Communication Services | United States | |
| 29084Q10 | EME US | EMCOR Group Inc | 80,542 | $49,274,790.18 | 0.35% | $49,274,790.18 | 0.35% | 27,387.31 | Industrials | United States | |
| 44351060 | HUBB US | Hubbell Inc | 101,115 | $44,906,182.65 | 0.32% | $44,906,182.65 | 0.32% | 23,602.23 | Industrials | United States | |
| 92247510 | VEEV US | Veeva Systems Inc | 194,828 | $43,491,454.44 | 0.31% | $43,491,454.44 | 0.31% | 36,694.96 | Health Care | United States | |
| 91820410 | VFC US | VF Corp | 2,339,199 | $42,292,717.92 | 0.30% | $42,292,717.92 | 0.30% | 7,064.30 | Consumer Discretionary | United States | |
| 03110010 | AME US | AMETEK Inc | 204,281 | $41,940,932.11 | 0.30% | $41,940,932.11 | 0.30% | 47,263.18 | Industrials | United States | |
| 36873610 | GNRC US | Generac Holdings Inc | 251,819 | $34,340,557.03 | 0.24% | $34,340,557.03 | 0.24% | 8,002.87 | Industrials | United States | |
| 09371210 | BE US | Bloom Energy Corp | 390,931 | $33,967,994.59 | 0.24% | $33,967,994.59 | 0.24% | 20,550.42 | Industrials | United States | |
| 25213110 | DXCM US | Dexcom Inc | 504,487 | $33,482,802.19 | 0.24% | $33,482,802.19 | 0.24% | 25,885.38 | Health Care | United States | |
| 33975010 | FND US | Floor & Decor Holdings Inc | 529,780 | $32,258,304.20 | 0.23% | $32,258,304.20 | 0.23% | 6,561.27 | Consumer Discretionary | United States | |
| 60471A10 | MIR US | Mirion Technologies Inc | 1,337,486 | $31,323,922.12 | 0.22% | $31,323,922.12 | 0.22% | 5,803.98 | Information Technology | United States | |
| 89235610 | TSCO US | Tractor Supply Co | 613,381 | $30,675,183.81 | 0.22% | $30,675,183.81 | 0.22% | 26,457.39 | Consumer Discretionary | United States | |
| 45232710 | ILMN US | Illumina Inc | 228,110 | $29,918,907.60 | 0.21% | $29,918,907.60 | 0.21% | 20,067.48 | Health Care | United States | |
| G1691012 | BLSH US | Bullish | 786,175 | $29,772,447.25 | 0.21% | $29,772,447.25 | 0.21% | 5,706.40 | Financials | Cayman Islands | |
| M7518J10 | ODD US | Oddity Tech Ltd | 738,380 | $29,668,108.40 | 0.21% | $29,668,108.40 | 0.21% | 2,243.17 | Consumer Staples | Israel | |
| 81764X10 | TTAN US | ServiceTitan Inc | 270,008 | $28,755,852.00 | 0.20% | $28,755,852.00 | 0.20% | 9,972.02 | Information Technology | United States | |
| G4124C10 | GRAB US | Grab Holdings Ltd | 5,742,750 | $28,656,322.50 | 0.20% | $28,656,322.50 | 0.20% | 20,394.13 | Industrials | Singapore | |
| M9806810 | WIX US | Wix.com Ltd | 260,291 | $27,041,631.99 | 0.19% | $27,041,631.99 | 0.19% | 5,829.06 | Information Technology | Israel | |
| 90225210 | TYL US | Tyler Technologies Inc | 56,955 | $25,854,722.25 | 0.18% | $25,854,722.25 | 0.18% | 19,532.44 | Information Technology | United States | |
| 61770010 | MORN US | Morningstar Inc | 101,235 | $21,999,377.85 | 0.16% | $21,999,377.85 | 0.16% | 9,019.89 | Financials | United States | |
| 05550J10 | BJ US | BJ's Wholesale Club Holdings Inc | 235,306 | $21,184,599.18 | 0.15% | $21,184,599.18 | 0.15% | 11,780.25 | Consumer Staples | United States | |
| 55405Y10 | MTSI US | MACOM Technology Solutions Holdings Inc | 117,335 | $20,097,138.80 | 0.14% | $20,097,138.80 | 0.14% | 12,834.52 | Information Technology | United States | |
| 00091G10 | ACVA US | ACV Auctions Inc | 2,179,503 | $17,479,614.06 | 0.12% | $17,479,614.06 | 0.12% | 1,380.81 | Industrials | United States | |
| 64119N60 | NTSK US | Netskope Inc | 952,617 | $16,708,902.18 | 0.12% | $16,708,902.18 | 0.12% | 6,893.96 | Information Technology | United States | |
| 14892910 | CAVA US | Cava Group Inc | 240,872 | $14,136,777.68 | 0.10% | $14,136,777.68 | 0.10% | 6,807.23 | Consumer Discretionary | United States | |
| 14215210 | CAI US | Caris Life Sciences Inc | 492,887 | $13,298,091.26 | 0.09% | $13,298,091.26 | 0.09% | 7,612.32 | Health Care | United States | |
| 88023B10 | TEM US | Tempus AI Inc | 223,562 | $13,201,336.10 | 0.09% | $13,201,336.10 | 0.09% | 10,491.94 | Health Care | United States | |
| 31684110 | FIG US | Figma Inc | 244,692 | $9,144,140.04 | 0.06% | $9,144,140.04 | 0.06% | 18,410.67 | Information Technology | United States | |
| CASH_USD | CASH_USD | Cash | - | 117,457,196.87 | 0.83% | 116,964,199.23 | 0.83% | - | - | - | |
| 55291X10 | 55291X10 | MFS Institutional Money Market Short Term Vehicle FRB | - | 124,391,838.63 | 0.88% | 124,407,589.25 | - | - | - | United States | |
| CASH_CAD | CASH_CAD | Canadian Dollar | - | 66,159.75 | 0.00% | 66,159.75 | - | - | - | Canada | |
| CASH_EUR | CASH_EUR | Euro | - | 249.33 | 0.00% | 249.33 | - | - | - | Germany | |
| CASH_GBP | CASH_GBP | British Pounds | - | 3.30 | 0.00% | 3.30 | - | - | - | United Kingdom | |
| CAPUSD | CAPUSD | CAPUSD | - | -2,498,958.17 | -0.02% | -2,498,958.17 | - | - | - | United States | |
| CASH_USD | CASH_USD | Us Dollars | - | -5,010,844.24 | -0.04% | -5,010,844.24 | - | - | - | United States | |
| CASH_DERV | - | Other | - | 0.01 | 0.00% | 492,997.65 | 0.00% | - | - | Other | |
*Short positions, unlike long positions, lose value if the underlying asset gains value.
Portfolio characteristics are based on equivalent exposure, which measures how a portfolio's value would change due to price changes in an asset held either directly or, in the case of a derivative contract, indirectly. The market value of the holding may differ.
The list of portfolio holdings is as of the date shown and may not represent current or future portfolio composition. This information should not be construed as a recommendation to buy or sell any of the securities mentioned.
This portfolio data has not been audited or adjusted for certain financial statement reclassifications. An audit could potentially result in adjustments to this data. For adjusted holdings information, please refer to the fund's quarterly portfolio holdings and semiannual reports. For audited portfolio holdings information, please refer to the fund's annual report.
A complete list of portfolio holdings for each MFS fund is generally available on mfs.com at the earliest, 19 days after the end of each month. Top 10 portfolio holdings are generally available at the earliest, 11 calendar days after the end of each month.
When posting a fund's top 10 securities holdings, if applicable, for funds with significant investments in both equity and debt instrument securities, the fund's top 10 equity and top 10 debt instrument securities will be made available. In addition, for funds that primarily invest in shares of MFS funds, when posting a fund's top 10 securities holdings, all of the following, as applicable, will be posted all securities positions in shares of MFS funds, top 10 aggregated equity securities contained within fund investments and top 10 aggregated debt instrument securities positions contained within underlying fund investments.
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The information provided on this page should be read in conjunction with the fund's prospectus or summary prospectus for the portfolio being offered, which are available online here or by contacting MFS. Consider the fund's investment objectives, risks, charges, and expenses, and otherwise read these documents carefully before you invest. Shares of the funds are not FDIC-insured and are not deposits or other obligations of, or guaranteed by, any bank. Shares of the funds involve investment risk, including possible loss of principal.
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