NPORT-P false 0000863032 XXXXXXXX S000002470 C000006638 C000070410 C000006637 C000006635 C000006644 C000006636 C000006643 C000006641 C000006639 MFS Series Trust VI 811-06102 0000863032 549300TNIHF98FLHSE74 111 Huntington Avenue Boston 02199 617-954-5000 MFS Utilities Fund S000002470 7PN70WZSAN5180NLO003 2024-10-31 2024-01-31 N 2472180803.88 3063900.55 2469116903.33 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 81.50000000 N S&P 500 SPX PG&E Corp. 8YQ2GSDWYZXO2EDN3511 69331C108 9626465.00000000 NS USD 162398464.55000000 6.577188157068 Long EC CORP US N 1 N N N RWE AG 529900GB7KCA94ACC940 N/A 2370014.00000000 NS 87928541.59000000 3.561133191847 Long EC CORP DE N 1 N N N MFS Institutional Money Market Portfolio 5L2W638H85N8T1136O07 55291X109 6692644.90500000 NS USD 6693314.17000000 0.271081298782 Long STIV RF US N 1 N N N SBA Communications Corp. 5299001HX8ZN8Y8QIT49 78410G104 320113.00000000 NS USD 71660496.18000000 2.902272309721 Long EC CORP US N 1 N N N NextEra Energy, Inc. N/A 65339F101 4700723.00000000 NS USD 275603389.49000000 11.16202271015 Long EC CORP US N 1 N N N Edison International 549300I7ROF15MAEVP56 281020107 1426126.00000000 NS USD 96234982.48000000 3.897546622851 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A -181702.71000000 -0.00735901608 N/A DFE N/A N 2 BNP Paribas R0MUWSFPU8MPRO8K5P83 63200107.82000000 GBP 79956731.61000000 USD 2024-04-19 -181702.71000000 N N N DTE Energy Co. 549300IX8SD6XXD71I78 233331107 1105362.00000000 NS USD 116527262.04000000 4.719390235547 Long EC CORP US N 1 N N N Atmos Energy Corp. QVLWEGTD2S8GJMO8D383 049560105 356669.00000000 NS USD 40638865.86000000 1.645886665195 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A 5659.98000000 0.000229230944 N/A DFE N/A N 2 Goldman Sachs International W22LROWP2IHZNBB6K528 23310338.15000000 USD 21504259.88000000 EUR 2024-04-19 5659.98000000 N N N Enel SpA WOCMU6HCI0OJWNPRZS33 N/A 8570941.00000000 NS 58460139.54000000 2.367653773750 Long EC CORP IT N 2 N N N Iberdrola SA 5QK37QC7NWOJ8D7WVQ45 N/A 1038178.00000000 NS 12508251.61000000 0.506588067706 Long EC CORP ES N 2 N N N Southern Co. (The) 549300FC3G3YU2FBZD92 842587107 1724278.00000000 NS USD 119871806.56000000 4.854845325400 Long EC CORP US N 1 N N N EDP - Energias de Portugal SA 529900CLC3WDMGI9VH80 N/A 7827721.00000000 NS 34923075.18000000 1.414395370786 Long EC CORP PT N 2 N N N N/A N/A N/A 1.00000000 NC N/A -310.57000000 -0.00001257818 N/A DFE N/A N 2 UBS AG BFM8T61CT2L1QCEMIK50 23143.75000000 USD 21058.96000000 EUR 2024-04-19 -310.57000000 N N N EDP Renovaveis SA 529900MUFAH07Q1TAX06 N/A 4868317.00000000 NS 78600277.40000000 3.183335600432 Long EC CORP ES N 2 N N N Xcel Energy, Inc. LGJNMI9GH8XIDG5RCM61 98389B100 1304067.00000000 NS USD 78074491.29000000 3.162041099986 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A -221.24000000 -0.00000896028 N/A DFE N/A N 2 UBS AG BFM8T61CT2L1QCEMIK50 38571.71000000 USD 35370.50000000 EUR 2024-04-19 -221.24000000 N N N United Utilities Group plc 2138002IEYQAOC88ZJ59 N/A 766016.00000000 NS 10306901.74000000 0.417432715563 Long EC CORP GB N 2 N N N Public Service Enterprise Group, Inc. PUSS41EMO3E6XXNV3U28 744573106 580202.00000000 NS USD 33645913.98000000 1.362669946272 Long EC CORP US N 1 N N N PPL Corp. 9N3UAJSNOUXFKQLF3V18 69351T106 3428392.00000000 NS USD 89823870.40000000 3.637894596195 Long EC CORP US N 1 N N N China Resources Gas Group Ltd. 529900A0E1J5JSOKEK83 N/A 4361200.00000000 NS 12328362.29000000 0.499302494481 Long EC CORP BM N 1 N N N Constellation Energy Corp. 549300F8Y20RYGNGV346 21037T109 679245.00000000 NS USD 82867890.00000000 3.356175233673 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A -487.33000000 -0.00001973701 N/A DFE N/A N 2 Morgan Stanley Capital Services I7331LVCZKQKX5T7XV54 36643.89000000 USD 33347.06000000 EUR 2024-04-19 -487.33000000 N N N National Grid plc 8R95QZMKZLJX5Q2XR704 N/A 3589296.00000000 NS 47777549.22000000 1.935005554235 Long EC CORP GB N 2 N N N Exelon Corp. 3SOUA6IRML7435B56G12 30161N101 684948.00000000 NS USD 23843039.88000000 0.965650506375 Long EC CORP US N 1 N N N American Electric Power Co., Inc. 1B4S6S7G0TW5EE83BO58 025537101 869390.00000000 NS USD 67934134.60000000 2.751353510576 Long EC CORP US N 1 N N N E.ON SE Q9MAIUP40P25UFBFG033 N/A 1443474.00000000 NS 19593127.30000000 0.793527729431 Long EC CORP DE N 1 N N N Veolia Environnement SA 969500LENY69X51OOT31 N/A 1122665.00000000 NS 36568024.31000000 1.481016320478 Long EC CORP FR N 2 N N N Ameren Corp. XRZQ5S7HYJFPHJ78L959 023608102 1076864.00000000 NS USD 74917428.48000000 3.034179077505 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A -67862.36000000 -0.00274844661 N/A DFE N/A N 2 State Street Bank and Trust 571474TGEMMWANRLN572 27505266.63000000 CAD 20410991.71000000 USD 2024-04-19 -67862.36000000 N N N N/A N/A N/A 1.00000000 NC N/A -315.72000000 -0.00001278675 N/A DFE N/A N 2 State Street Bank and Trust 571474TGEMMWANRLN572 51336.75000000 USD 47056.51000000 EUR 2024-04-19 -315.72000000 N N N Orsted A/S W9NG6WMZIYEU8VEDOG48 N/A 329997.00000000 NS 18193711.53000000 0.736850956933 Long EC CORP DK N 2 N N N Rogers Communications, Inc. 5493000M6Z4XFIP6PF03 775109200 681574.00000000 NS 31836696.94000000 1.289396095302 Long EC CORP CA N 1 N N N Evergy, Inc. 549300PGTHDQY6PSUI61 30034W106 851439.00000000 NS USD 43227558.03000000 1.750729500563 Long EC CORP US N 1 N N N Equatorial Energia SA N/A N/A 1809300.00000000 NS 12938700.75000000 0.524021391314 Long EC CORP BR N 1 N N N Pinnacle West Capital Corp. TWSEY0NEDUDCKS27AH81 723484101 537392.00000000 NS USD 37026308.80000000 1.499576984389 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A -1912.87000000 -0.00007747182 N/A DFE N/A N 2 UBS AG BFM8T61CT2L1QCEMIK50 588493.75000000 USD 541001.40000000 EUR 2024-04-19 -1912.87000000 N N N Alliant Energy Corp. 5493009ML300G373MZ12 018802108 1317784.00000000 NS USD 64123369.44000000 2.597016340276 Long EC CORP US N 1 N N N CLP Holdings Ltd. 25490002BUTSMP94GO68 N/A 1835500.00000000 NS 14549887.67000000 0.589274961034 Long EC CORP HK N 2 N N N Cellnex Telecom SA 5493008T4YG3AQUI7P67 N/A 2058187.00000000 NS 79251693.38000000 3.209718149558 Long EC CORP ES N 2 N N N Sempra PBBKGKLRK5S5C0Y4T545 816851109 1462053.00000000 NS USD 104624512.68000000 4.237325196668 Long EC CORP US N 1 N N N Southwest Gas Holdings, Inc. 254900LKF9EV0CUKNE09 844895102 232206.00000000 NS USD 13625848.08000000 0.551851071191 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A 7901.15000000 0.000319999024 N/A DFE N/A N 2 UBS AG BFM8T61CT2L1QCEMIK50 1491966.03000000 EUR 1625565.62000000 USD 2024-04-19 7901.15000000 N N N N/A N/A N/A 1.00000000 NC N/A -113.35000000 -0.00000459071 N/A DFE N/A N 2 Morgan Stanley Capital Services I7331LVCZKQKX5T7XV54 14469.04000000 USD 13240.20000000 EUR 2024-04-19 -113.35000000 N N N Portland General Electric Co. GJOUP9M7C39GLSK9R870 736508847 859081.00000000 NS USD 35162185.33000000 1.424079405984 Long EC CORP US N 1 N N N N/A N/A N/A 1.00000000 NC N/A -88580.31000000 -0.00358753001 N/A DFE N/A N 2 Morgan Stanley Capital Services I7331LVCZKQKX5T7XV54 16348357.90000000 USD 14996333.46000000 EUR 2024-04-19 -88580.31000000 N N N Dominion Energy, Inc. ILUL7B6Z54MRYCF6H308 25746U109 3153814.00000000 NS USD 144192376.08000000 5.839835930228 Long EC CORP US N 1 N N N AES Corp. (The) 2NUNNB7D43COUIRE5295 00130H105 1240066.00000000 NS USD 20684300.88000000 0.837720597680 Long EC CORP US N 1 N N N Hellenic Telecommunications Organization SA ELPUFM0XZRZO4LFXW404 N/A 984307.00000000 NS 13669066.50000000 0.553601430599 Long EC CORP GR N 1 N N N CenterPoint Energy, Inc. 21TPXMRRHFKOBHDC8J74 15189T107 742175.00000000 NS USD 20736369.50000000 0.839829392931 Long EC CORP US N 1 N N N SSE plc 549300KI75VYLLMSK856 N/A 2689984.00000000 NS 57288563.87000000 2.320204595932 Long EC CORP GB N 2 N N N N/A N/A N/A 1.00000000 NC N/A 2251960.56000000 0.091205100777 N/A DFE N/A N 2 State Street Bank and Trust 571474TGEMMWANRLN572 288535427.85000000 EUR 315096556.66000000 USD 2024-04-19 2251960.56000000 N N N N/A N/A N/A 1.00000000 NC N/A -270.99000000 -0.00001097517 N/A DFE N/A N 2 Morgan Stanley Capital Services I7331LVCZKQKX5T7XV54 36044.36000000 USD 32993.65000000 EUR 2024-04-19 -270.99000000 N N N 2024-03-01 MFS Series Trust VI Kasey Phillips Kasey Phillips Assistant Treasurer XXXX