OTCBX
MFS Mid Cap Growth Fund
MFS SERIES TRUST IV

Portfolio concentration

As of February 28, 2026 · N-PORT
Holdings
104
Top-10 weight
26.47%
Effective holdings ?
65
Crowding ?
746.6

Holdings

As of February 28, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 HOWMET AEROSPACE INC 2,302,899 $604.58M 4.38%
2 MONOLITHIC POWER SYS INC 385,713 $440.77M 3.20%
3 TAKE-TWO INTERACTV SOFTWR INC 1,886,157 $398.88M 2.89%
4 QUANTA SVCS INC 667,580 $375.90M 2.73%
5 LIVE NATION ENTERTAINMENT INC 2,156,753 $349.70M 2.54%
6 TKO GROUP HOLDINGS INC 1,430,847 $320.32M 2.32%
7 Ascendis Pharma A/S 1,279,738 $298.82M 2.17%
8 NATERA INC 1,417,224 $294.84M 2.14%
9 MASIMO CORP 1,643,450 $288.18M 2.09%
10 VISTRA CORP 1,615,099 $280.85M 2.04%
11 CHENIERE ENERGY INC 1,165,873 $274.83M 1.99%
12 LPL FINL HLDGS INC 897,884 $269.71M 1.96%
13 AXON ENTERPRISE INC 479,513 $260.09M 1.89%
14 BURLINGTON STORES INC 792,368 $243.15M 1.76%
15 CBRE GROUP INC - CL A 1,607,075 $237.30M 1.72%
16 WINGSTOP INC 909,649 $236.06M 1.71%
17 NASDAQ INC 2,611,865 $228.75M 1.66%
18 VULCAN MATERIALS CO 729,132 $226.03M 1.64%
19 ROBLOX CORP - A 3,188,993 $218.96M 1.59%
20 VIKING HOLDINGS LTD 2,668,781 $208.22M 1.51%
21 CAMECO CORP 1,700,149 $201.30M 1.46%
22 HYATT HOTELS CORP CL A 1,217,409 $196.61M 1.43%
23 CARLYLE GROUP INC (THE) 3,660,200 $190.29M 1.38%
24 CARVANA CO CL A 567,500 $189.64M 1.38%
25 O'REILLY AUTOMOTIVE INC 1,985,830 $186.43M 1.35%
26 CLOUDFLARE INC-A 1,031,626 $177.64M 1.29%
27 TAPESTRY INC 1,111,670 $172.83M 1.25%
28 AGILENT TECHNOLOGIES INC 1,411,097 $171.28M 1.24%
29 CURTISS WRIGHT CORPORATION 243,543 $170.56M 1.24%
30 STERIS PLC 660,880 $166.77M 1.21%
31 TRIMBLE INC 2,398,115 $160.36M 1.16%
32 EMCOR GROUP INC 219,309 $158.92M 1.15%
33 MFS Institutional Money Market Portfolio, Class A 149,962,545 $149.98M 1.09%
34 BWX TECHNOLOGIES INC 688,050 $141.72M 1.03%
35 COHERENT CORP 537,551 $139.19M 1.01%
36 HEXCEL CORPORATION 1,490,033 $138.11M 1.00%
37 CARNIVAL CORP 4,363,355 $137.66M 1.00%
38 VERTIV HOLDINGS CO 521,169 $132.84M 0.96%
39 ASM INTL NV 156,566 $132.13M 0.96%
40 EXPAND ENERGY CORP 1,211,028 $130.69M 0.95%
41 ROYAL CARIBBEAN CRUISES LTD 415,180 $129.10M 0.94%
42 GUIDEWIRE SOFTWARE INC 875,525 $127.23M 0.92%
43 CIENA CORP 352,236 $122.82M 0.89%
44 HUBBELL INC 239,044 $122.30M 0.89%
45 OKTA INC CL A 1,658,649 $120.25M 0.87%
46 WATERS CORP 375,362 $119.88M 0.87%
47 GFL ENVIRONM-SUB 2,688,819 $118.82M 0.86%
48 DRAFTKINGS INC 4,931,528 $117.57M 0.85%
49 CADENCE DESIGN SYSTEMS INC 388,339 $117.05M 0.85%
50 COUPANG INC A 6,128,836 $116.94M 0.85%
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