NPORT-P false 0001014913 XXXXXXXX S000035417 C000108790 C000167328 Frontier Funds, Inc. 811-07685 0001014913 549300TMAADQMXZCXG08 400 Skokie Blvd Suite 500 Northbrook 60062-2815 847-509-9860 Frontier MFG Core Infrastructure Fund S000035417 54930024JUVLTGGBLV83 2024-06-30 2023-12-31 N 458971036.560000000000 1679006.460000000000 457292030.100000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 0.000000000000 N CMS Energy Corp 549300IA9XFBAGNIBW29 125896100 67331.000000000000 NS USD 3909911.170000000000 0.8550140638 Long EC CORP US N 1 N N N Exelon Corp 3SOUA6IRML7435B56G12 30161N101 221297.000000000000 NS USD 7944562.300000000000 1.7373060926 Long EC CORP US N 1 N N N Power Assets Holdings Ltd 254900JOWYUW1ZX4DF47 N/A 1236659.000000000000 NS 7166398.120000000000 1.5671382067 Long EC CORP HK N 1 N N N Portland General Electric Co GJOUP9M7C39GLSK9R870 736508847 17663.000000000000 NS USD 765514.420000000000 0.1674016536 Long EC CORP US N 1 N N N National Grid PLC 8R95QZMKZLJX5Q2XR704 N/A 1001750.000000000000 NS 13509381.410000000000 2.9542131769 Long EC CORP GB N 1 N N N Hicl Infrastructure PLC 213800BVXR1E5L7PEV94 N/A 1314084.000000000000 NS 2321543.380000000000 0.5076719530 Long EC RF GB N 1 N N N Aena SME SA 959800R7QMXKF0NFMT29 E526K0106 75377.000000000000 NS 13655133.030000000000 2.9860859432 Long EC CORP ES N 1 N N N Crown Castle Inc 54930012H97VSM0I2R19 22822V101 76890.000000000000 NS USD 8856959.100000000000 1.9368277855 Long EC CORP US N 1 N N N APA Group N/A N/A 783016.000000000000 NS 4556823.790000000000 0.9964800368 Long EC CORP AU N 1 N N N NiSource Inc 549300D8GOWWH0SJB189 65473P105 96750.000000000000 NS USD 2568712.500000000000 0.5617225604 Long EC CORP US N 1 N N N Northwest Natural Holding Co 254900PSJL6ZEC8FR782 66765N105 7085.000000000000 NS USD 275889.900000000000 0.0603312286 Long EC CORP US N 1 N N N Pinnacle West Capital Corp TWSEY0NEDUDCKS27AH81 723484101 24614.000000000000 NS USD 1768269.760000000000 0.3866828293 Long EC CORP US N 1 N N N SJW Group N/A 784305104 7267.000000000000 NS USD 474898.450000000000 0.1038501480 Long EC CORP US N 1 N N N Fortis Inc/Canada 549300MQYQ9Y065XPR71 349553107 292730.000000000000 NS 12042347.310000000000 2.6334041526 Long EC CORP CA N 1 N N N PINFRA 52990035X6RK8DBUWA73 P7925L103 224531.000000000000 NS 2423152.410000000000 0.5298916776 Long EC CORP MX N 1 N N N Evergy Inc 549300PGTHDQY6PSUI61 30034W106 53231.000000000000 NS USD 2778658.200000000000 0.6076332009 Long EC CORP US N 1 N N N FirstEnergy Corp 549300SVYJS666PQJH88 337932107 121112.000000000000 NS USD 4439965.920000000000 0.9709257166 Long EC CORP US N 1 N N N Middlesex Water Co N/A 596680108 6365.000000000000 NS USD 417671.300000000000 0.0913357926 Long EC CORP US N 1 N N N Enav SpA 81560048ECF8D2059980 N/A 338340.000000000000 NS 1283379.230000000000 0.2806476268 Long EC CORP IT N 1 N N N Flughafen Zurich AG 529900PFO97GCN5SYB55 N/A 18503.000000000000 NS 3863179.120000000000 0.8447947626 Long EC CORP CH N 1 N N N Enbridge Inc 98TPTUM4IVMFCZBCUR27 29250N105 375262.000000000000 NS 13508922.230000000000 2.9541127640 Long EC CORP CA N 1 N N N ONE Gas Inc 549300HXDWI0LATTX840 68235P108 12810.000000000000 NS USD 816253.200000000000 0.1784971411 Long EC CORP US N 1 N N N Macquarie Korea Infrastructure N/A N/A 267385.000000000000 NS 2582707.820000000000 0.5647830380 Long EC CORP KR N 1 N N N Ferrovial SE 72450022R2ZFL41Y6I04 N/A 379074.000000000000 NS 13818139.490000000000 3.0217319744 Long EC CORP ES N 1 N N N Hydro One Ltd 5493007QZDXTP1W2VL44 448811208 359307.000000000000 NS 10765245.010000000000 2.3541291563 Long EC CORP CA N 1 N N N Terna - Rete Elettrica Naziona 8156009E94ED54DE7C31 N/A 1206572.000000000000 NS 10061870.630000000000 2.2003162023 Long EC CORP IT N 1 N N N ALLETE Inc 549300NNLSIMY6Z8OT86 018522300 12451.000000000000 NS USD 761503.160000000000 0.1665244767 Long EC CORP US N 1 N N N CenterPoint Energy Inc 21TPXMRRHFKOBHDC8J74 15189T107 137757.000000000000 NS USD 3935717.490000000000 0.8606573548 Long EC CORP US N 1 N N N Transurban Group 549300ZR71SUQ4VUTM79 N/A 1469244.000000000000 NS 13726667.330000000000 3.0017289667 Long EC CORP AU N 1 N N N Snam SpA 8156002278562044AF79 N/A 1993387.000000000000 NS 10243769.850000000000 2.2400936766 Long EC CORP IT N 1 N N N Public Service Enterprise Grou PUSS41EMO3E6XXNV3U28 744573106 110624.000000000000 NS USD 6764657.600000000000 1.4792861355 Long EC CORP US N 1 N N N SBA Communications Corp 5299001HX8ZN8Y8QIT49 78410G104 23937.000000000000 NS USD 6072577.530000000000 1.3279430058 Long EC CORP US N 1 N N N WEC Energy Group Inc 549300IGLYTZUK3PVP70 92939U106 70303.000000000000 NS USD 5917403.510000000000 1.2940097619 Long EC CORP US N 1 N N N Xcel Energy Inc LGJNMI9GH8XIDG5RCM61 98389B100 122989.000000000000 NS USD 7614248.990000000000 1.6650736267 Long EC CORP US N 1 N N N International Public Partnersh 2138002AJT55TI5M4W30 N/A 1224577.000000000000 NS 2144683.820000000000 0.4689965446 Long EC RF GG N 1 N N N Severn Trent PLC 213800RPBXRETY4A4C59 N/A 177646.000000000000 NS 5839789.860000000000 1.2770373144 Long EC CORP GB N 1 N N N Vinci SA 213800WFQ334R8UXUG83 N/A 107860.000000000000 NS 13538463.750000000000 2.9605728635 Long EC CORP FR N 1 N N N REN - Redes Energeticas Nacion 549300FR1FN48IGHR915 N/A 502680.000000000000 NS 1290217.920000000000 0.2821431022 Long EC CORP PT N 1 N N N Italgas SpA 815600F25FF44EF1FA76 N/A 492289.000000000000 NS 2815129.630000000000 0.6156087237 Long EC CORP IT N 1 N N N Brookfield Renewable Corp N/A 11284V105 107046.000000000000 NS 3081192.740000000000 0.6737910432 Long EC CORP US N 1 N N N Cellnex Telecom SA 5493008T4YG3AQUI7P67 N/A 344430.999999000000 NS 13559137.880000000000 2.9650938541 Long EC CORP ES N 1 N N N Atmos Energy Corp QVLWEGTD2S8GJMO8D383 049560105 32685.000000000000 NS USD 3788191.500000000000 0.8283965717 Long EC CORP US N 1 N N N ACEA SpA 549300Q3448N041CTH56 N/A 152166.000000000000 NS 2323209.150000000000 0.5080362213 Long EC CORP IT N 1 N N N OGE Energy Corp CE5OG6JPOZMDSA0LAQ19 670837103 48065.000000000000 NS USD 1678910.450000000000 0.3671418567 Long EC CORP US N 1 N N N Aeroports de Paris SA 969500PJMBSFHYC37989 N/A 58695.000000000000 NS 7594115.960000000000 1.6606709630 Long EC CORP FR N 1 N N N Atlas Arteria Ltd 254900SGF4ZQDBH2YC59 N/A 902361.000000000000 NS 3554200.170000000000 0.7772276655 Long EC CORP AU N 1 N N N American Tower Corp 5493006ORUSIL88JOE18 03027X100 45838.000000000000 NS USD 9895507.440000000000 2.1639361259 Long EC CORP US N 1 N N N American Water Works Co Inc 549300DXHIJQMD5WFW18 030420103 44463.000000000000 NS USD 5868671.370000000000 1.2833530837 Long EC CORP US N 1 N N N Black Hills Corp 3MGELCRSTNSAMJ962671 092113109 15397.000000000000 NS USD 830668.150000000000 0.1816493827 Long EC CORP US N 1 N N N Chesapeake Utilities Corp 254900WW0FDCKAOCKE74 165303108 1671.000000000000 NS USD 176507.730000000000 0.0385984706 Long EC CORP US N 1 N N N Consolidated Edison Inc 54930033SBW53OO8T749 209115104 76926.000000000000 NS USD 6997958.220000000000 1.5303039982 Long EC CORP US N 1 N N N MGE Energy Inc N/A 55277P104 8425.000000000000 NS USD 609211.750000000000 0.1332215980 Long EC CORP US N 1 N N N Northwestern Energy Group Inc 254900N1WG46G1VMDM34 668074305 8752.000000000000 NS USD 445389.280000000000 0.0973971228 Long EC CORP US N 1 N N N PNM Resources Inc 5493003JOBJGLZSDDQ28 69349H107 14776.000000000000 NS USD 614681.600000000000 0.1344177374 Long EC CORP US N 1 N N N U.S. Bank Money Market Deposit Account N/A 8AMMF0A84 6614169.170000000000 NS USD 6614169.170000000000 1.4463775300 Long STIV RF US N 1 N N N Grupo Aeroportuario del Pacifi 4469000001BZ368XFI90 P4959P100 263992.000000000000 NS 4630470.360000000000 1.0125849687 Long EC CORP MX N 1 N N N Elia Group SA/NV 549300S1MP1NFDIKT460 N/A 44121.000000000000 NS 5518534.510000000000 1.2067856308 Long EC CORP BE N 1 N N N Essential Utilities Inc 549300ILTEOF3E3QY357 29670G102 62698.000000000000 NS USD 2341770.300000000000 0.5120951484 Long EC CORP US N 1 N N N Sempra PBBKGKLRK5S5C0Y4T545 816851109 124054.000000000000 NS USD 9270555.420000000000 2.0272724670 Long EC CORP US N 1 N N N TC Energy Corp 549300UGKOFV2IWJJG27 87807B107 340660.000000000000 NS 13307091.510000000000 2.9099766963 Long EC CORP CA N 1 N N N Dominion Energy Inc ILUL7B6Z54MRYCF6H308 25746U109 189324.000000000000 NS USD 8898228.000000000000 1.9458524125 Long EC CORP US N 1 N N N Duke Energy Corp I1BZKREC126H0VB1BL91 26441C204 98172.000000000000 NS USD 9526610.880000000000 2.0832663272 Long EC CORP US N 1 N N N Chorus Ltd R7NJHU48LTCIOB9BVU57 N/A 259658.000000000000 NS 1290164.920000000000 0.2821315123 Long EC CORP NZ N 1 N N N Grupo Aeroportuario del Surest 5299001W7JIDXCUOUC82 P4950Y100 166298.000000000000 NS 4886699.190000000000 1.0686167412 Long EC CORP MX N 1 N N N Koninklijke Vopak NV 724500UL634GFV1KYF10 N/A 76351.000000000000 NS 2565711.870000000000 0.5610663867 Long EC CORP NL N 1 N N N Grupo Aeroportuario del Centro 529900HUSBARAFSXJ605 P49530101 198500.000000000000 NS 2099323.660000000000 0.4590772464 Long EC CORP MX N 1 N N N Alliant Energy Corp 5493009ML300G373MZ12 018802108 58102.000000000000 NS USD 2980632.600000000000 0.6518006884 Long EC CORP US N 1 N N N Ameren Corp XRZQ5S7HYJFPHJ78L959 023608102 60223.000000000000 NS USD 4356531.820000000000 0.9526804609 Long EC CORP US N 1 N N N American Electric Power Co Inc 1B4S6S7G0TW5EE83BO58 025537101 113623.000000000000 NS USD 9228460.060000000000 2.0180671109 Long EC CORP US N 1 N N N American States Water Co 529900L26LIS2V8PWM23 029899101 9482.000000000000 NS USD 762542.440000000000 0.1667517450 Long EC CORP US N 1 N N N Avangrid Inc 549300OX0Q38NLSKPB49 05351W103 89687.000000000000 NS USD 2906755.670000000000 0.6356453817 Long EC CORP US N 1 N N N Avista Corp Q0IK63NITJD6RJ47SW96 05379B107 11347.000000000000 NS USD 405541.780000000000 0.0886833256 Long EC CORP US N 1 N N N California Water Service Group 529900QABDOBU6UVRQ36 130788102 13139.000000000000 NS USD 681519.930000000000 0.1490338526 Long EC CORP US N 1 N N N Canadian Utilities Ltd LWV4QIQODEH3VBHUFX07 136717832 120064.000000000000 NS 2889582.250000000000 0.6318899215 Long EC CORP CA N 1 N N N Aguas Andinas SA 894500KC50BSHRL3SK15 N/A 3344924.000000000000 NS 1080538.670000000000 0.2362907287 Long EC CORP CL N 1 N N N DTE Energy Co 549300IX8SD6XXD71I78 233331107 44967.000000000000 NS USD 4958061.420000000000 1.0842221368 Long EC CORP US N 1 N N N Emera Inc NQZVQT2P5IUF2PGA1Q48 290876101 167467.000000000000 NS 6357186.600000000000 1.3901809307 Long EC CORP CA N 1 N N N Entergy Corp 4XM3TW50JULSLG8BNC79 29364G103 44222.000000000000 NS USD 4474824.180000000000 0.9785484735 Long EC CORP US N 1 N N N Eversource Energy SJ7XXD41SQU3ZNWUJ746 30040W108 77224.000000000000 NS USD 4766265.280000000000 1.0422804174 Long EC CORP US N 1 N N N PPL Corp 9N3UAJSNOUXFKQLF3V18 69351T106 154273.000000000000 NS USD 4180798.300000000000 0.9142512934 Long EC CORP US N 1 N N N Fraport AG Frankfurt Airport S 5299001ERX0K10IZUL40 N/A 55075.000000000000 NS 3329403.650000000000 0.7280694678 Long EC CORP DE N 1 N N N Enagas SA 213800OU3FQKGM4M2U23 N/A 156041.000000000000 NS 2629565.780000000000 0.5750298730 Long EC CORP ES N 1 N N N Southern Co/The 549300FC3G3YU2FBZD92 842587107 127594.000000000000 NS USD 8946891.280000000000 1.9564940325 Long EC CORP US N 1 N N N Spire Inc 549300NXSY15DRY2R511 84857L101 12582.000000000000 NS USD 784361.880000000000 0.1715231905 Long EC CORP US N 1 N N N Vector Ltd N/A N/A 611929.000000000000 NS 1442882.080000000000 0.3155274934 Long EC CORP NZ N 1 N N N Getlink SE 9695007ZEQ7M0OE74G82 N/A 324371.000000000000 NS 5931738.070000000000 1.2971444240 Long EC CORP FR N 1 N N N United Utilities Group PLC 2138002IEYQAOC88ZJ59 N/A 404166.000000000000 NS 5458221.830000000000 1.1935965359 Long EC CORP GB N 1 N N N Algonquin Power & Utilities Co 549300K5VIUTJXQL7X75 015857105 419955.000000000000 NS 2649578.360000000000 0.5794061968 Long EC CORP CA N 1 N N N Auckland International Airport 549300HFZIZDJWB7AK60 N/A 896005.000000000000 NS 4984413.680000000000 1.0899848132 Long EC CORP NZ N 1 N N N IDACORP Inc N134NUJDWN8UEFA8B673 451107106 12205.000000000000 NS USD 1199995.600000000000 0.2624134078 Long EC CORP US N 1 N N N Redeia Corp SA 5493009HMD0C90GUV498 N/A 321593.000000000000 NS 5293375.910000000000 1.1575482540 Long EC CORP ES N 1 N N N Pennon Group PLC 213800V1CCTS41GWH423 N/A 158916.000000000000 NS 1522253.760000000000 0.3328843846 Long EC CORP GB N 1 N N N 2024-02-21 Frontier Funds, Inc. /s/ Elyce D. Dilworth Frontier Funds, Inc. Treasurer and Assistant Secretary