Full & Historical Holdings
Mid Cap Growth Series
View Historical Holdings by Month
| Based on Market Value | Based on Equivalent Exposure | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| CUSIP/SEDOL | Ticker |
Securities
(on 03-31-26)
|
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 | 57,807 | $13,322,201.22 | 4.17% | $13,322,201.22 | 4.17% | 92,557.58 | Industrials | United States | |
| 60983910 | MPWR US | Monolithic Power Systems Inc | 9,713 | $10,639,024.55 | 3.32% | $10,619,708.55 | 3.32% | 53,703.17 | Information Technology | United States | |
| 74762E10 | PWR US | Quanta Services Inc | 16,910 | $9,283,928.20 | 2.90% | $9,283,928.20 | 2.90% | 82,144.06 | Industrials | United States | |
| 87405410 | TTWO US | Take-Two Interactive Software Inc | 46,998 | $9,282,105.00 | 2.90% | $9,282,105.00 | 2.90% | 36,572.15 | Communication Services | United States | |
| 16411R20 | LNG US | Cheniere Energy Inc | 29,082 | $8,252,308.32 | 2.58% | $8,252,308.32 | 2.58% | 60,270.62 | Energy | United States | |
| 53803410 | LYV US | Live Nation Entertainment Inc | 53,885 | $8,218,001.35 | 2.57% | $8,218,001.35 | 2.57% | 35,904.06 | Communication Services | United States | |
| 57479510 | MASI US | Masimo Corp | 42,208 | $7,507,536.96 | 2.35% | $7,507,536.96 | 2.35% | 9,285.59 | Health Care | United States | |
| 04351P10 | ASND US | Ascendis Pharma AS ADR | 31,813 | $7,276,587.49 | 2.28% | $7,276,587.49 | 2.28% | 14,176.09 | Health Care | Denmark | |
| 87256C10 | TKO US | TKO Group Holdings Inc | 36,008 | $7,261,013.20 | 2.27% | $7,261,013.20 | 2.27% | 15,721.91 | Communication Services | United States | |
| 63230710 | NTRA US | Natera Inc | 35,695 | $7,138,643.05 | 2.23% | $7,138,643.05 | 2.23% | 28,344.83 | Health Care | United States | |
| 12201710 | BURL US | Burlington Stores Inc | 20,854 | $6,785,474.52 | 2.12% | $6,785,474.52 | 2.12% | 20,407.18 | Consumer Discretionary | United States | |
| 50212V10 | LPLA US | LPL Financial Holdings Inc | 22,524 | $6,775,894.92 | 2.12% | $6,775,894.92 | 2.12% | 24,090.52 | Financials | United States | |
| 92840M10 | VST US | Vistra Corp | 41,015 | $6,165,784.95 | 1.93% | $6,165,784.95 | 1.93% | 50,820.56 | Utilities | United States | |
| 63110310 | NDAQ US | Nasdaq Inc | 66,130 | $5,613,775.70 | 1.76% | $5,613,775.70 | 1.76% | 48,378.30 | Financials | United States | |
| 18915M10 | NET US | Cloudflare Inc | 25,766 | $5,316,556.44 | 1.66% | $5,316,556.44 | 1.66% | 72,608.36 | Information Technology | United States | |
| 05464C10 | AXON US | Axon Enterprise Inc | 11,998 | $5,095,430.62 | 1.59% | $5,095,430.62 | 1.59% | 34,144.09 | Industrials | United States | |
| G93A5A10 | VIK US | Viking Holdings Ltd | 66,603 | $4,893,988.44 | 1.53% | $4,893,988.44 | 1.53% | 32,748.42 | Consumer Discretionary | United States | |
| 92916010 | VMC US | Vulcan Materials Co | 17,661 | $4,809,090.30 | 1.50% | $4,809,090.30 | 1.50% | 35,562.38 | Materials | United States | |
| 13321L10 | CCJ US | Cameco Corp | 42,446 | $4,610,060.06 | 1.44% | $4,610,060.06 | 1.44% | 47,295.09 | Energy | Canada | |
| 77104910 | RBLX US | ROBLOX Corp | 79,869 | $4,517,390.64 | 1.41% | $4,517,390.64 | 1.41% | 40,064.79 | Communication Services | United States | |
| 12504L10 | CBRE US | CBRE Group Inc | 33,092 | $4,482,642.32 | 1.40% | $4,482,642.32 | 1.40% | 40,059.72 | Real Estate | United States | |
| 14686910 | CVNA US | Carvana Co | 14,182 | $4,458,537.16 | 1.40% | $4,458,537.16 | 1.40% | 44,954.38 | Consumer Discretionary | United States | |
| 14316J10 | CG US | Carlyle Group Inc | 91,738 | $4,439,201.82 | 1.39% | $4,439,201.82 | 1.39% | 17,477.07 | Financials | United States | |
| 44857910 | H US | Hyatt Hotels Corp | 30,460 | $4,379,843.40 | 1.37% | $4,379,843.40 | 1.37% | 13,603.11 | Consumer Discretionary | United States | |
| 23156110 | CW US | Curtiss-Wright Corp | 6,141 | $4,184,223.36 | 1.31% | $4,182,757.92 | 1.31% | 25,112.57 | Industrials | United States | |
| 29084Q10 | EME US | EMCOR Group Inc | 5,506 | $4,065,134.86 | 1.27% | $4,065,134.86 | 1.27% | 32,878.84 | Industrials | United States | |
| 67103H10 | ORLY US | O'Reilly Automotive Inc | 42,909 | $3,960,929.79 | 1.24% | $3,960,929.79 | 1.24% | 77,716.62 | Consumer Discretionary | United States | |
| 00846U10 | A US | Agilent Technologies Inc | 32,176 | $3,675,578.70 | 1.15% | $3,667,420.48 | 1.15% | 32,221.69 | Health Care | United States | |
| 87603010 | TPR US | Tapestry Inc | 25,488 | $3,596,611.68 | 1.13% | $3,596,611.68 | 1.13% | 28,603.00 | Consumer Discretionary | United States | |
| G8473T10 | STE US | STERIS PLC | 16,202 | $3,582,748.26 | 1.12% | $3,582,748.26 | 1.12% | 21,692.85 | Health Care | United States | |
| 97415510 | WING US | Wingstop Inc | 23,079 | $3,576,552.63 | 1.12% | $3,576,552.63 | 1.12% | 4,268.03 | Consumer Discretionary | United States | |
| 05605H10 | BWXT US | BWX Technologies Inc | 17,390 | $3,556,081.10 | 1.11% | $3,556,081.10 | 1.11% | 18,699.61 | Industrials | United States | |
| 17177930 | CIEN US | Ciena Corp | 8,805 | $3,418,365.15 | 1.07% | $3,418,365.15 | 1.07% | 54,916.30 | Information Technology | United States | |
| 16516773 | EXE US | Expand Energy Corp | 30,451 | $3,342,910.78 | 1.05% | $3,342,910.78 | 1.05% | 26,390.92 | Energy | United States | |
| 40171V10 | GWRE US | Guidewire Software Inc | 21,894 | $3,274,466.64 | 1.02% | $3,274,466.64 | 1.02% | 12,661.37 | Information Technology | United States | |
| 92537N10 | VRT US | Vertiv Holdings Co | 13,030 | $3,265,057.40 | 1.02% | $3,265,057.40 | 1.02% | 95,871.52 | Industrials | United States | |
| 89623910 | TRMB US | Trimble Inc | 49,775 | $3,246,823.25 | 1.02% | $3,246,823.25 | 1.02% | 15,394.28 | Information Technology | United States | |
| 19247G10 | COHR US | Coherent Corp | 13,436 | $3,200,589.56 | 1.00% | $3,200,589.56 | 1.00% | 44,660.05 | Information Technology | United States | |
| 42829110 | HXL US | Hexcel Corp | 37,412 | $3,027,753.16 | 0.95% | $3,027,753.16 | 0.95% | 6,140.19 | Industrials | United States | |
| 44351060 | HUBB US | Hubbell Inc | 6,122 | $3,004,310.28 | 0.94% | $3,004,310.28 | 0.94% | 26,133.87 | Industrials | United States | |
| 516529 | ASM NA | ASM International NV | 3,943 | $3,003,490.81 | 0.94% | $3,003,490.82 | 0.94% | 37,574.90 | Information Technology | Netherlands | |
| 67929510 | OKTA US | Okta Inc | 37,189 | $2,927,146.19 | 0.92% | $2,927,146.19 | 0.92% | 13,959.77 | Information Technology | United States | |
| 36168Q10 | GFL US | GFL Environmental Inc | 66,896 | $2,790,901.12 | 0.87% | $2,790,901.12 | 0.87% | 15,477.58 | Industrials | Canada | |
| 94184810 | WAT US | Waters Corp | 9,306 | $2,771,326.80 | 0.87% | $2,771,326.80 | 0.87% | 29,214.74 | Health Care | United States | |
| 02043Q10 | ALNY US | Alnylam Pharmaceuticals Inc | 8,275 | $2,737,949.25 | 0.86% | $2,737,949.25 | 0.86% | 43,881.02 | Health Care | United States | |
| 26142V10 | DKNG US | DraftKings Inc | 124,509 | $2,691,884.58 | 0.84% | $2,691,884.58 | 0.84% | 10,703.05 | Consumer Discretionary | United States | |
| 75524B10 | RBC US | RBC Bearings Inc | 4,927 | $2,675,952.24 | 0.84% | $2,675,952.24 | 0.84% | 17,172.91 | Industrials | United States | |
| G7997R10 | STX US | Seagate Technology Holdings PLC | 6,810 | $2,672,896.14 | 0.83% | $2,667,885.60 | 0.83% | 85,445.21 | Information Technology | United States | |
| 46631310 | JBL US | Jabil Inc | 9,696 | $2,575,548.48 | 0.81% | $2,575,548.48 | 0.81% | 28,375.39 | Information Technology | United States | |
| 22266T10 | CPNG US | Coupang Inc | 135,414 | $2,556,616.32 | 0.80% | $2,556,616.32 | 0.80% | 34,418.24 | Consumer Discretionary | South Korea | |
| 75991610 | RGEN US | Repligen Corp | 21,679 | $2,554,219.78 | 0.80% | $2,554,219.78 | 0.80% | 6,636.93 | Health Care | United States | |
| V7780T10 | RCL US | Royal Caribbean Cruises Ltd | 9,173 | $2,539,512.64 | 0.79% | $2,524,226.14 | 0.79% | 74,443.98 | Consumer Discretionary | United States | |
| 03852U10 | ARMK US | Aramark | 62,056 | $2,515,750.24 | 0.79% | $2,515,750.24 | 0.79% | 10,655.37 | Consumer Discretionary | United States | |
| 14365830 | CCL US | Carnival Corp | 96,385 | $2,494,443.80 | 0.78% | $2,494,443.80 | 0.78% | 35,843.80 | Consumer Discretionary | United States | |
| 03110010 | AME US | AMETEK Inc | 11,361 | $2,435,343.96 | 0.76% | $2,435,343.96 | 0.76% | 49,096.37 | Industrials | United States | |
| 12738710 | CDNS US | Cadence Design Systems Inc | 8,755 | $2,432,751.85 | 0.76% | $2,432,751.85 | 0.76% | 75,761.53 | Information Technology | United States | |
| 09073M10 | TECH US | Techne Corp | 45,113 | $2,357,605.38 | 0.74% | $2,357,605.38 | 0.74% | 8,176.25 | Health Care | United States | |
| 71377A10 | PFGC US | Performance Food Group Co | 26,939 | $2,307,594.74 | 0.72% | $2,307,594.74 | 0.72% | 13,457.10 | Consumer Staples | United States | |
| 58507V10 | MDLN US | Medline Inc | 51,837 | $2,306,746.50 | 0.72% | $2,306,746.50 | 0.72% | 58,473.00 | Health Care | United States | |
| 98074510 | WWD US | Woodward Inc | 5,765 | $2,063,408.80 | 0.65% | $2,063,408.80 | 0.65% | 21,388.58 | Industrials | United States | |
| 03674X10 | AR US | Antero Resources Corp | 46,786 | $1,985,597.84 | 0.62% | $1,985,597.84 | 0.62% | 13,093.80 | Energy | United States | |
| 09057220 | BIO US | Bio-Rad Laboratories Inc | 6,967 | $1,942,051.25 | 0.61% | $1,942,051.25 | 0.61% | 7,523.46 | Health Care | United States | |
| 15118V20 | CELH US | Celsius Holdings Inc | 53,046 | $1,882,072.08 | 0.59% | $1,882,072.08 | 0.59% | 9,117.51 | Consumer Staples | United States | |
| 15986410 | CRL US | Charles River Laboratories International Inc | 10,782 | $1,859,895.00 | 0.58% | $1,859,895.00 | 0.58% | 8,491.80 | Health Care | United States | |
| 23804L10 | DDOG US | Datadog Inc | 14,800 | $1,747,140.00 | 0.55% | $1,747,140.00 | 0.55% | 41,615.69 | Information Technology | United States | |
| 25213110 | DXCM US | Dexcom Inc | 27,463 | $1,724,676.40 | 0.54% | $1,724,676.40 | 0.54% | 24,169.51 | Health Care | United States | |
| 44641310 | HII US | Huntington Ingalls Industries Inc | 4,433 | $1,684,096.70 | 0.53% | $1,684,096.70 | 0.53% | 14,908.30 | Industrials | United States | |
| G0260P10 | AS US | Amer Sports Inc | 49,856 | $1,641,259.52 | 0.51% | $1,641,259.52 | 0.51% | 19,036.71 | Consumer Discretionary | Finland | |
| H8088L10 | SRAD US | Sportradar Group AG | 90,962 | $1,522,703.88 | 0.48% | $1,522,703.88 | 0.48% | 5,012.96 | Consumer Discretionary | Switzerland | |
| 03820C10 | AIT US | Applied Industrial Technologies Inc | 5,496 | $1,458,198.72 | 0.46% | $1,458,198.72 | 0.46% | 9,918.72 | Industrials | United States | |
| L8681T10 | SPOT US | Spotify Technology SA | 2,861 | $1,387,327.51 | 0.43% | $1,387,327.51 | 0.43% | 99,810.48 | Communication Services | Sweden | |
| 23345M10 | DTM US | DT Midstream Inc | 9,938 | $1,346,033.74 | 0.42% | $1,338,350.46 | 0.42% | 13,698.83 | Energy | United States | |
| 45232710 | ILMN US | Illumina Inc | 10,697 | $1,318,512.22 | 0.41% | $1,318,512.22 | 0.41% | 18,858.78 | Health Care | United States | |
| 60782810 | MOD US | Modine Manufacturing Co | 5,997 | $1,299,609.87 | 0.41% | $1,299,609.87 | 0.41% | 11,442.29 | Industrials | United States | |
| 91820410 | VFC US | VF Corp | 75,269 | $1,278,820.31 | 0.40% | $1,278,820.31 | 0.40% | 6,647.56 | Consumer Discretionary | United States | |
| 77070010 | HOOD US | Robinhood Markets Inc | 18,126 | $1,256,131.80 | 0.39% | $1,256,131.80 | 0.39% | 62,462.10 | Financials | United States | |
| 89400J10 | TRU US | TransUnion | 18,126 | $1,254,137.94 | 0.39% | $1,254,137.94 | 0.39% | 13,325.99 | Industrials | United States | |
| 36873610 | GNRC US | Generac Holdings Inc | 6,292 | $1,229,016.36 | 0.38% | $1,229,016.36 | 0.38% | 11,461.38 | Industrials | United States | |
| 31677310 | FITB US | Fifth Third Bancorp | 25,165 | $1,179,174.70 | 0.37% | $1,169,165.90 | 0.37% | 41,898.51 | Financials | United States | |
| 60937P10 | MDB US | MongoDB Inc | 4,770 | $1,167,552.90 | 0.37% | $1,167,552.90 | 0.37% | 19,702.27 | Information Technology | United States | |
| 69047Q10 | OVV US | Ovintiv Inc | 19,538 | $1,159,775.68 | 0.36% | $1,159,775.68 | 0.36% | 16,818.79 | Energy | United States | |
| 55405Y10 | MTSI US | MACOM Technology Solutions Holdings Inc | 5,031 | $1,117,234.17 | 0.35% | $1,117,234.17 | 0.35% | 16,657.91 | Information Technology | United States | |
| 65566310 | NDSN US | Nordson Corp | 4,198 | $1,120,342.56 | 0.35% | $1,116,919.88 | 0.35% | 14,841.89 | Industrials | United States | |
| 03990B10 | ARES US | Ares Management Corp | 10,004 | $1,091,436.40 | 0.34% | $1,091,436.40 | 0.34% | 24,215.29 | Financials | United States | |
| 53122975 | FWONK US | Liberty Media Corp-Liberty Formula One | 12,771 | $1,085,790.42 | 0.34% | $1,085,790.42 | 0.34% | 21,259.59 | Communication Services | United States | |
| 53390010 | LECO US | Lincoln Electric Holdings Inc | 4,268 | $1,066,426.20 | 0.33% | $1,063,073.44 | 0.33% | 13,661.04 | Industrials | United States | |
| 09371210 | BE US | Bloom Energy Corp | 7,485 | $1,014,142.65 | 0.32% | $1,014,142.65 | 0.32% | 38,011.48 | Industrials | United States | |
| 45687V10 | IR US | INGERSOLL-RAND INC | 12,615 | $1,010,713.80 | 0.32% | $1,010,713.80 | 0.32% | 31,376.43 | Industrials | United States | |
| G8711010 | FTI US | TechnipFMC PLC | 14,149 | $978,823.77 | 0.31% | $978,120.37 | 0.31% | 27,700.39 | Energy | United States | |
| 25765110 | DCI US | Donaldson Co Inc | 11,273 | $956,739.51 | 0.30% | $956,739.51 | 0.30% | 9,829.15 | Industrials | United States | |
| 31488V10 | FERG US | Ferguson Enterprises Inc | 3,885 | $909,614.90 | 0.28% | $906,215.10 | 0.28% | 45,694.70 | Industrials | United States | |
| 01387210 | AA US | Alcoa Inc | 13,541 | $898,174.53 | 0.28% | $898,174.53 | 0.28% | 17,500.49 | Materials | United States | |
| 004561 | ANTO LN | Antofagasta PLC | 19,588 | $871,407.32 | 0.27% | $871,407.33 | 0.27% | 43,857.60 | Materials | United Kingdom | |
| 33975010 | FND US | Floor & Decor Holdings Inc | 15,730 | $799,084.00 | 0.25% | $799,084.00 | 0.25% | 5,480.07 | Consumer Discretionary | United States | |
| 89235610 | TSCO US | Tractor Supply Co | 16,811 | $761,538.30 | 0.24% | $761,538.30 | 0.24% | 23,873.87 | Consumer Discretionary | United States | |
| BZ3DNP | AGI CN | Alamos Gold Inc | 16,934 | $753,393.19 | 0.24% | $753,393.19 | 0.24% | 18,680.49 | Materials | Canada | |
| 14892910 | CAVA US | Cava Group Inc | 8,582 | $694,283.80 | 0.22% | $694,283.80 | 0.22% | 9,414.96 | Consumer Discretionary | United States | |
| G4124C10 | GRAB US | Grab Holdings Ltd | 182,608 | $668,345.28 | 0.21% | $668,345.28 | 0.21% | 14,967.52 | Industrials | Singapore | |
| 89055F10 | BLD US | TopBuild Corp | 1,590 | $558,567.00 | 0.17% | $558,567.00 | 0.17% | 9,885.42 | Consumer Discretionary | United States | |
| 05550J10 | BJ US | BJ's Wholesale Club Holdings Inc | 3,618 | $356,083.56 | 0.11% | $356,083.56 | 0.11% | 12,762.77 | Consumer Staples | United States | |
| 65011110 | NYT US | New York Times Co | 3,786 | $317,001.78 | 0.10% | $317,001.78 | 0.10% | 13,550.03 | Communication Services | United States | |
| 92333F10 | VG US | Venture Global Inc | 17,880 | $281,788.80 | 0.09% | $281,788.80 | 0.09% | 38,722.32 | Energy | United States | |
| 60365F10 | MMED US | MiniMed Group Inc | 18,259 | $272,424.28 | 0.09% | $272,424.28 | 0.09% | 4,189.74 | Health Care | United States | |
| CASH_USD | CASH_USD | Cash & Cash Equivalents | - | 2,873,540.77 | 0.90% | 2,861,137.96 | 0.90% | - | - | - | |
| 55291X10 | 55291X10 | MFS Institutional Money Market Short Term Vehicle FRB | - | 4,867,405.65 | 1.53% | 4,868,022.09 | - | - | - | United States | |
| CAPUSD | CAPUSD | CAPUSD | - | 116,791.19 | 0.04% | 116,791.19 | - | - | - | United States | |
| CASH_CAD | CASH_CAD | Canadian Dollar | - | 21.20 | 0.00% | 21.20 | - | - | - | Canada | |
| CASH_USD | CASH_USD | Us Dollars | - | -2,123,696.52 | -0.66% | -2,123,696.52 | - | - | - | United States | |
| CASH_DERV | - | Other | - | -0.01 | 0.00% | 12,402.81 | 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.
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