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false
0001014913
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S000062285
C000201867
C000201868
Frontier Funds, Inc.
811-07685
0001014913
549300TMAADQMXZCXG08
400 Skokie Blvd
Suite 500
Northbrook
60062-2815
847-509-9860
Frontier MFG Select Infrastructure Fund
S000062285
549300BDDWRTGO8T1393
2022-06-30
2021-09-30
N
128421077.900000000000
145515.780000000000
128275562.120000000000
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
252751.190000000000
N
Alliant Energy Corp
5493009ML300G373MZ12
Alliant Energy Corp
018802108
43999.000000000000
NS
USD
2463064.020000000000
1.9201350431
Long
EC
CORP
US
N
1
N
N
N
American Tower Corp
5493006ORUSIL88JOE18
American Tower Corp
03027X100
23071.000000000000
NS
USD
6123274.110000000000
4.7735313015
Long
EC
CORP
US
N
1
N
N
N
American Water Works Co Inc
549300DXHIJQMD5WFW18
American Water Works Co Inc
030420103
11551.000000000000
NS
USD
1952581.040000000000
1.5221769507
Long
EC
CORP
US
N
1
N
N
N
Atmos Energy Corp
QVLWEGTD2S8GJMO8D383
Atmos Energy Corp
049560105
66319.000000000000
NS
USD
5849335.800000000000
4.5599767433
Long
EC
CORP
US
N
1
N
N
N
CSX Corp
549300JVQR4N1MMP3Q88
CSX Corp
126408103
127973.000000000000
NS
USD
3805917.020000000000
2.9669852598
Long
EC
CORP
US
N
1
N
N
N
Crown Castle International Cor
54930012H97VSM0I2R19
Crown Castle International Corp
22822V101
32309.000000000000
NS
USD
5599795.880000000000
4.3654424798
Long
EC
CORP
US
N
1
N
N
N
Enbridge Inc
98TPTUM4IVMFCZBCUR27
Enbridge Inc
29250N105
185500.000000000000
NS
7390123.160000000000
5.7611309885
Long
EC
CORP
CA
N
1
N
N
N
Dominion Energy Inc
ILUL7B6Z54MRYCF6H308
Dominion Energy Inc
25746U109
34139.000000000000
NS
USD
2492829.780000000000
1.9433395877
Long
EC
CORP
US
N
1
N
N
N
Evergy Inc
549300PGTHDQY6PSUI61
Evergy Inc
30034W106
74884.000000000000
NS
USD
4657784.800000000000
3.6310772863
Long
EC
CORP
US
N
1
N
N
N
Eversource Energy
SJ7XXD41SQU3ZNWUJ746
Eversource Energy
30040W108
68084.000000000000
NS
USD
5566547.840000000000
4.3395232482
Long
EC
CORP
US
N
1
N
N
N
Koninklijke Vopak NV
724500UL634GFV1KYF10
Koninklijke Vopak NV
N5075T159
35035.000000000000
NS
1380461.180000000000
1.0761684901
Long
EC
CORP
NL
N
2
N
N
N
Transurban Group
549300ZR71SUQ4VUTM79
Transurban Group
Q9194A106
846966.000000000000
NS
8536140.240000000000
6.6545334894
Long
EC
CORP
AU
N
2
N
N
N
Norfolk Southern Corp
54930036C8MWP850MI84
Norfolk Southern Corp
655844108
18198.000000000000
NS
USD
4353871.500000000000
3.3941550737
Long
EC
CORP
US
N
1
N
N
N
Snam SpA
8156002278562044AF79
Snam SpA
T8578N103
573410.000000000000
NS
3172029.990000000000
2.4728248605
Long
EC
CORP
IT
N
2
N
N
N
Sempra Energy
PBBKGKLRK5S5C0Y4T545
Sempra Energy
816851109
48412.000000000000
NS
USD
6124118.000000000000
4.7741891743
Long
EC
CORP
US
N
1
N
N
N
U.S. Bank Money Market Deposit Account
N/A
U.S. Bank Money Market Deposit Account
8AMMF0A84
4161358.630000000000
NS
USD
4161358.630000000000
3.2440774854
Long
STIV
RF
US
N
1
N
N
N
Union Pacific Corp
549300LMMRSZZCZ8CL11
Union Pacific Corp
907818108
5668.000000000000
NS
USD
1110984.680000000000
0.8660922327
Long
EC
CORP
US
N
1
N
N
N
WEC Energy Group Inc
549300IGLYTZUK3PVP70
WEC Energy Group Inc
92939U106
54343.000000000000
NS
USD
4793052.600000000000
3.7365282372
Long
EC
CORP
US
N
1
N
N
N
Sydney Airport
N/A
Sydney Airport
Q8808P103
321063.000000000000
NS
1885552.380000000000
1.4699233033
Long
EC
CORP
AU
N
2
N
N
N
Red Electrica Corp SA
5493009HMD0C90GUV498
Red Electrica Corp SA
E42807110
273897.000000000000
NS
5494979.480000000000
4.2837305791
Long
EC
CORP
ES
N
2
N
N
N
National Grid PLC
8R95QZMKZLJX5Q2XR704
National Grid PLC
G6S9A7120
347108.000000000000
NS
4136041.780000000000
3.2243411852
Long
EC
CORP
GB
N
2
N
N
N
Auckland International Airport
549300HFZIZDJWB7AK60
Auckland International Airport Ltd
Q06213146
266227.000000000000
NS
1431067.990000000000
1.1156201278
Long
EC
CORP
NZ
N
2
N
N
N
Transurban Group
549300ZR71SUQ4VUTM79
Transurban Group
N/A
92858.000000000000
NS
950585.790000000000
0.7410497949
Long
EC
CORP
AU
N
1
N
N
N
AusNet Services Ltd
529900PPFC4A1KRQ2S64
AusNet Services
Q0708Q109
599734.000000000000
NS
1085557.040000000000
0.8462695638
Long
EC
CORP
AU
N
2
N
N
N
Aena SME SA
959800R7QMXKF0NFMT29
Aena SME SA
E526K0106
29970.000000000000
NS
5183042.970000000000
4.0405536989
Long
EC
CORP
ES
N
1
N
N
N
Atlas Arteria Ltd
N/A
Atlas Arteria Ltd
Q06180105
912345.000000000000
NS
4206806.030000000000
3.2795069930
Long
EC
CORP
AU
N
2
N
N
N
Xcel Energy Inc
LGJNMI9GH8XIDG5RCM61
Xcel Energy Inc
98389B100
80012.000000000000
NS
USD
5000750.000000000000
3.8984432556
Long
EC
CORP
US
N
1
N
N
N
Terna - Rete Elettrica Naziona
8156009E94ED54DE7C31
Terna Rete Elettrica Nazionale SpA
T9471R100
325939.000000000000
NS
2313117.690000000000
1.8032411254
Long
EC
CORP
IT
N
2
N
N
N
Spark Infrastructure Group
N/A
Spark Infrastructure Group
Q8604W120
1983046.000000000000
NS
4005478.520000000000
3.1225577607
Long
EC
CORP
AU
N
2
N
N
N
Aeroports de Paris
969500PJMBSFHYC37989
Aeroports de Paris
F00882104
12118.000000000000
NS
1543354.450000000000
1.2031554760
Long
EC
CORP
FR
N
2
N
N
N
Severn Trent PLC
213800RPBXRETY4A4C59
Severn Trent PLC
G8056D159
35186.000000000000
NS
1231830.960000000000
0.9603005745
Long
EC
CORP
GB
N
2
N
N
N
Vinci SA
213800WFQ334R8UXUG83
Vinci SA
F5879X108
55255.000000000000
NS
5746990.690000000000
4.4801913903
Long
EC
CORP
FR
N
2
N
N
N
United Utilities Group PLC
2138002IEYQAOC88ZJ59
United Utilities Group PLC
G92755100
305831.000000000000
NS
3980498.610000000000
3.1030841294
Long
EC
CORP
GB
N
2
N
N
N
2021-11-18
Frontier Funds, Inc.
/s/ Elyce D. Dilworth
Frontier Funds, Inc.
Treasurer and Assistant Secretary
XXXX