NPORT-EX 2 EOPTFI0DEL123122.htm
Schedule of investments
Optimum Fixed Income Fund 
December 31, 2022 (Unaudited)
    Principal
amount°
Value (US $)
Agency Asset-Backed Security — 0.02%
SLM Student Loan Trust
Series 2008-9 A 5.858% (LIBOR03M + 1.50%) 4/25/23 •
         514,030 $      509,048
Total Agency Asset-Backed Security
(cost $514,063)
      509,048
 
Agency Collateralized Mortgage Obligations — 2.61%
Fannie Mae Grantor
Trust
     
Series 1999-T2 A1 7.50% 1/19/39 •            3,182          3,207
Series 2004-T1 1A2 6.50% 1/25/44            3,100          3,185
Fannie Mae REMIC
Trust
     
Series 2004-W11 1A2 6.50% 5/25/44           22,410         22,987
Series 2004-W15 1A1 6.00% 8/25/44           15,547         15,674
Fannie Mae REMICs      
Series 1999-19 PH 6.00% 5/25/29           26,369         26,714
Series 2001-14 Z 6.00% 5/25/31            1,607          1,612
Series 2007-30 OE 1.784% 4/25/37 Ω, ^        1,272,988        937,629
Series 2008-24 ZA 5.00% 4/25/38        4,188,113      4,188,852
Series 2009-2 AS 1.311% (5.70% minus LIBOR01M, Cap 5.70%) 2/25/39 Σ, •          241,475         15,114
Series 2009-68 SA 2.361% (6.75% minus LIBOR01M, Cap 6.75%) 9/25/39 Σ, •           91,468         10,105
Series 2011-118 DC 4.00% 11/25/41          261,187        245,071
Series 2017-40 GZ 3.50% 5/25/47          403,495        360,375
Series 2017-95 FA 3.546% (LIBOR01M + 0.35%, Floor 0.35%) 11/25/47 •          231,241        223,097
Freddie Mac REMICs      
Series 2165 PE 6.00% 6/15/29           24,023         24,403
Series 3143 BC 5.50% 2/15/36          690,765        702,199
    Principal
amount°
Value (US $)
Agency Collateralized Mortgage Obligations (continued)
Freddie Mac REMICs      
Series 3289 SA 2.432% (6.75% minus LIBOR01M, Cap 6.75%) 3/15/37 Σ, •          291,492 $       27,026
Series 4676 KZ 2.50% 7/15/45          385,928        335,407
Freddie Mac
Structured Agency Credit Risk REMIC Trust
     
Series 2019-DNA4 M2 144A 6.339% (LIBOR01M + 1.95%) 10/25/49 #, •          101,326        101,326
Series 2019-HQA4 M2 144A 6.439% (LIBOR01M + 2.05%) 11/25/49 #, •           50,671         50,544
Series 2020-DNA2 M2 144A 6.239% (LIBOR01M + 1.85%) 2/25/50 #, •          214,623        214,150
Series 2020-DNA6 M2 144A 5.928% (SOFR + 2.00%) 12/25/50 #, •        3,135,405      3,113,682
Series 2021-DNA1 M2 144A 5.728% (SOFR + 1.80%) 1/25/51 #, •        5,840,573      5,701,809
Series 2021-DNA3 M2 144A 6.028% (SOFR + 2.10%) 10/25/33 #, •        2,500,000      2,451,185
Series 2021-DNA5 M2 144A 5.578% (SOFR + 1.65%) 1/25/34 #, •        2,838,828      2,799,825
Series 2021-HQA1 M2 144A 6.178% (SOFR + 2.25%) 8/25/33 #, •        7,000,000      6,592,826
Series 2021-HQA2 M2 144A 5.978% (SOFR + 2.05%) 12/25/33 #, •        5,000,000      4,546,874
Series 2022-DNA1 M2 144A 6.428% (SOFR + 2.50%) 1/25/42 #, •        3,000,000      2,709,711
NQ-OPTFI [12/22] 2/23 (2747704)    1

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Agency Collateralized Mortgage Obligations (continued)
Freddie Mac
Structured Agency Credit Risk REMIC Trust
     
Series 2022-DNA2 M2 144A 6.031% (SOFR + 3.75%) 2/25/42 #, •        1,000,000 $      940,444
Freddie Mac
Structured Pass Through Certificates
     
Series T-54 2A 6.50% 2/25/43 ♦            9,693         10,099
Series T-58 2A 6.50% 9/25/43 ♦            3,510          3,541
GNMA      
Series 2008-65 SB 1.647% (6.00% minus LIBOR01M, Cap 6.00%) 8/20/38 Σ, •          242,234         10,746
Series 2009-2 SE 1.467% (5.82% minus LIBOR01M, Cap 5.82%) 1/20/39 Σ, •          804,270         48,642
Series 2011-H21 FT 4.892% (H15T1Y + 0.70%, Cap 15.25%, Floor 0.70%) 10/20/61 •        3,264,267      3,260,475
Series 2011-H23 FA 4.542% (LIBOR01M + 0.70%, Cap 11.00%, Floor 0.70%) 10/20/61 •        2,143,978      2,134,507
Series 2012-H08 FB 4.442% (LIBOR01M + 0.60%, Cap 11.00%, Floor 0.60%) 3/20/62 •          251,350        249,957
Series 2012-H18 NA 4.362% (LIBOR01M + 0.52%, Cap 10.50%, Floor 0.52%) 8/20/62 •          159,246        158,141
Series 2012-H29 SA 4.357% (LIBOR01M + 0.515%, Cap 12.00%, Floor 0.515%) 10/20/62 •        2,783,676      2,759,657
Series 2013-113 LY 3.00% 5/20/43          173,000        156,026
    Principal
amount°
Value (US $)
Agency Collateralized Mortgage Obligations (continued)
GNMA      
Series 2015-H10 FA 3.381% (LIBOR01M + 0.60%, Cap 7.50%) 4/20/65 •        8,129,572 $    7,991,018
Series 2015-H11 FC 3.774% (LIBOR01M + 0.55%, Cap 7.50%, Floor 0.55%) 5/20/65 •          940,376        925,391
Series 2015-H12 FB 3.965% (LIBOR01M + 0.60%, Cap 7.50%, Floor 0.60%) 5/20/65 •        3,997,488      3,940,068
Series 2015-H20 FB 4.407% (LIBOR01M + 0.60%, Cap 7.50%, Floor 0.60%) 8/20/65 •        1,099,258      1,081,732
Series 2015-H30 FD 4.442% (LIBOR01M + 0.60%, Cap 11.00%, Floor 0.60%) 10/20/65 •           57,347         56,983
Series 2016-H06 FD 4.417% (LIBOR01M + 0.92%, Cap 7.50%, Floor 0.92%) 7/20/65 •        1,078,526      1,068,423
Series 2017-163 ZK 3.50% 11/20/47        2,751,333     2,557,082
Total Agency Collateralized Mortgage Obligations
(cost $65,251,797)
   62,777,521
 
Agency Commercial Mortgage-Backed Securities — 0.06%
Freddie Mac Multifamily Structured Pass Through Certificates
Series X3FX A2FX 3.00% 6/25/27 ♦
       1,070,000      1,009,255
FREMF Mortgage Trust
Series 2017-K71 B 144A 3.752% 11/25/50 #, •
         470,000       425,368
Total Agency Commercial Mortgage-Backed Securities
(cost $1,518,515)
    1,434,623
 
 
2    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Agency Mortgage-Backed Securities — 27.09%
Fannie Mae
5.50% 3/1/37
           4,695 $        4,693
Fannie Mae S.F. 15 yr      
2.00% 3/1/36        3,184,143      2,840,108
2.50% 7/1/36        5,911,374      5,425,727
Fannie Mae S.F. 20 yr      
2.00% 3/1/41        2,928,263      2,493,780
2.00% 5/1/41        2,681,473      2,283,627
3.00% 9/1/37        1,331,222      1,248,263
Fannie Mae S.F. 30 yr      
2.00% 12/1/50        7,830,553      6,411,728
2.00% 1/1/51          987,297        813,067
2.00% 2/1/51        3,731,482      3,066,081
2.00% 4/1/51        4,882,042      3,986,224
2.00% 8/1/51        1,377,153      1,129,507
2.00% 1/1/52        3,864,041      3,174,043
2.50% 10/1/50        1,395,498      1,188,561
2.50% 1/1/51        2,859,140      2,438,215
2.50% 7/1/51        1,263,497      1,079,049
2.50% 8/1/51        7,178,952      6,131,145
2.50% 2/1/52        5,789,134      4,929,225
2.50% 4/1/52           65,095         55,204
3.00% 10/1/42        1,231,147      1,120,216
3.00% 4/1/43          413,650        376,620
3.00% 1/1/47        1,650,640      1,502,039
3.00% 11/1/48          648,605        580,147
3.00% 12/1/49        3,588,239      3,189,845
3.00% 3/1/50        1,616,703      1,432,645
3.00% 7/1/50          782,932        690,192
3.00% 5/1/51          536,967        476,329
3.00% 7/1/51        4,531,467      4,008,511
3.00% 8/1/51        1,661,848      1,464,028
3.00% 12/1/51          505,491        446,556
3.50% 2/1/47        2,257,958      2,112,435
3.50% 7/1/47        1,802,845      1,687,259
3.50% 1/1/48          861,853        799,430
3.50% 2/1/48        1,587,057      1,470,651
3.50% 11/1/48          977,926        906,196
3.50% 1/1/50        1,273,607      1,168,153
3.50% 3/1/50          598,288        558,824
3.50% 8/1/50        6,620,617      6,129,145
3.50% 1/1/52          970,800        883,532
3.50% 3/1/52        3,438,156      3,158,822
3.50% 4/1/52        2,389,000      2,193,320
3.50% 5/1/52        3,253,005      2,980,679
3.50% 6/1/52        2,617,868      2,379,096
4.00% 10/1/40            8,910          8,556
4.00% 11/1/40           36,170         34,558
4.00% 3/1/46           54,360         52,068
4.00% 3/1/47        3,038,524      2,910,523
4.00% 4/1/47          458,762        439,597
    Principal
amount°
Value (US $)
Agency Mortgage-Backed Securities (continued)
Fannie Mae S.F. 30 yr      
4.00% 6/1/48        2,214,733 $    2,114,522
4.00% 9/1/48        2,744,844      2,617,176
4.00% 10/1/48        2,384,287      2,286,511
4.00% 1/1/49           42,888         40,893
4.00% 3/1/49          121,526        115,875
4.00% 6/1/49          553,205        529,887
4.50% 5/1/35           27,454         27,005
4.50% 8/1/35           45,575         44,835
4.50% 9/1/35           52,888         52,153
4.50% 5/1/39          172,476        170,814
4.50% 6/1/40          131,308        129,968
4.50% 7/1/40          164,544        158,266
4.50% 4/1/41           12,859         12,655
4.50% 1/1/42        1,811,683      1,785,795
4.50% 5/1/46          118,425        117,399
4.50% 4/1/48          670,785        667,779
4.50% 7/1/48          132,615        130,049
4.50% 8/1/48           94,454         92,224
4.50% 9/1/48          226,380        221,041
4.50% 12/1/48          182,063        178,261
4.50% 1/1/49        5,281,714      5,202,420
4.50% 1/1/50        1,957,679      1,930,216
4.50% 9/1/52        9,097,876      8,757,442
5.00% 3/1/34              848            866
5.00% 4/1/34            4,184          4,273
5.00% 8/1/34            7,809          7,975
5.00% 4/1/35            1,679          1,693
5.00% 12/1/37              696            702
5.00% 3/1/38           42,517         43,082
5.00% 6/1/38              869            866
5.00% 5/1/40           65,539         66,367
5.00% 7/1/47          339,065        344,204
5.00% 7/1/52        3,635,866      3,588,255
5.00% 10/1/52       10,480,949     10,397,137
5.50% 12/1/33            7,685          7,728
5.50% 2/1/35          131,594        136,560
5.50% 5/1/44        4,492,775      4,649,429
5.50% 10/1/52        8,988,592      9,018,569
5.50% 11/1/52        4,773,749      4,829,003
5.50% 12/1/52        5,104,752      5,118,454
6.00% 9/1/36            6,294          6,389
6.00% 8/1/38           12,743         12,935
6.00% 12/1/38            2,747          2,866
6.00% 6/1/41          932,337        964,217
6.00% 7/1/41        3,167,822      3,307,522
6.00% 1/1/42          794,356        829,294
6.00% 12/1/52        9,794,562      9,942,106
6.50% 11/1/33            1,563          1,603
6.50% 2/1/36           25,844         27,069
6.50% 3/1/36           46,545         47,771
 
NQ-OPTFI [12/22] 2/23 (2747704)    3

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Agency Mortgage-Backed Securities (continued)
Fannie Mae S.F. 30 yr      
6.50% 6/1/36           34,120 $       35,414
6.50% 2/1/38            9,800         10,138
6.50% 11/1/38            1,997          2,090
Fannie Mae S.F. 30 yr
TBA
     
2.00% 2/15/53       50,200,000     40,878,846
2.50% 1/1/53       41,200,000     34,876,389
3.00% 1/1/53       11,000,000      9,651,062
3.00% 2/15/53      162,000,000    142,235,077
3.50% 2/15/53       72,100,000     65,519,606
4.00% 2/15/53       56,500,000     52,982,201
4.50% 1/1/53       15,000,000     14,433,845
4.50% 2/1/53        3,100,000      2,982,873
5.00% 2/1/53        4,400,000      4,333,599
5.50% 1/1/53        3,880,000      3,889,570
Freddie Mac ARM      
2.00% (LIBOR12M + 1.625%, Cap 10.50%, Floor 1.625%) 2/1/38 •           12,250         11,938
3.555% (LIBOR12M + 2.18%, Cap 10.517%, Floor 2.18%) 5/1/37 •           39,013         38,917
Freddie Mac S.F. 15 yr      
2.00% 12/1/35        2,380,917      2,129,650
3.00% 3/1/35        7,113,460      6,663,248
Freddie Mac S.F. 20 yr      
2.00% 3/1/41        3,336,997      2,841,868
2.50% 6/1/41        5,993,789      5,271,312
3.00% 4/1/42        1,758,989      1,571,278
5.00% 11/1/42        3,332,200      3,314,665
5.50% 10/1/23            1,090          1,094
5.50% 8/1/24            1,117          1,121
Freddie Mac S.F. 30 yr      
2.00% 9/1/51        4,845,798      3,959,155
2.00% 3/1/52        1,945,402      1,584,028
2.50% 10/1/50        2,480,741      2,133,097
2.50% 11/1/50        2,295,955      1,947,292
2.50% 2/1/51        4,260,249      3,658,693
2.50% 10/1/51        6,597,644      5,624,278
3.00% 11/1/46        2,292,170      2,053,863
3.00% 11/1/49        2,248,558      1,987,278
3.00% 1/1/50          602,498        536,516
3.00% 12/1/50          172,970        154,036
3.00% 5/1/51        5,605,302      5,036,092
3.00% 8/1/51        1,487,369      1,314,998
3.00% 2/1/52          569,128        499,681
3.50% 8/1/48           18,385         17,018
3.50% 9/1/48        1,591,855      1,475,179
3.50% 11/1/48        4,476,614      4,166,042
    Principal
amount°
Value (US $)
Agency Mortgage-Backed Securities (continued)
Freddie Mac S.F. 30 yr      
3.50% 4/1/52        2,052,978 $    1,874,498
4.00% 12/1/45          433,015        415,488
4.00% 7/1/47          140,419        134,280
4.00% 10/1/47        1,353,237      1,281,928
4.00% 9/1/52        1,992,967      1,870,092
4.50% 8/1/48          796,642        782,340
4.50% 1/1/49        2,812,111      2,752,225
4.50% 3/1/49          168,413        164,973
4.50% 4/1/49          701,150        688,130
4.50% 8/1/49        1,513,034      1,492,739
5.00% 7/1/52        6,079,803      6,017,705
5.50% 9/1/41        1,281,326      1,330,076
5.50% 9/1/52        5,285,482      5,344,158
5.50% 11/1/52        6,030,602      6,056,025
6.50% 11/1/33           13,734         14,182
6.50% 1/1/35           40,710         43,041
7.00% 1/1/38            5,026          4,983
GNMA I S.F. 30 yr      
3.00% 8/15/45        4,705,519      4,221,448
3.00% 3/15/50          369,200        327,876
GNMA I S.F. 30 yr TBA
4.00% 1/20/53
       6,000,000      5,676,584
GNMA II S.F. 30 yr      
3.00% 8/20/50          691,564        628,333
5.00% 9/20/52        1,691,573      1,676,583
5.50% 5/20/37           54,607         56,820
5.50% 6/20/49        3,523,658      3,592,282
6.00% 4/20/34            1,690         1,685
Total Agency Mortgage-Backed Securities
(cost $681,601,559)
  650,869,861
 
Agency Obligation — 0.21%
Federal Home Loan Banks
4.31% (SOFR + 0.01%) 1/4/23 •
       5,000,000     5,000,009
Total Agency Obligation
(cost $5,000,000)
    5,000,009
 
Collateralized Debt Obligations — 6.62%
522 Funding CLO
Series 2018-3A AR 144A 3.75% (LIBOR03M + 1.04%, Floor 1.04%) 10/20/31 #, •
       1,200,000      1,173,737
 
4    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Adagio V CLO DAC
Series V-A ARR 144A 2.098% (EUR003M + 0.72%, Floor 0.72%) 10/15/31 #, •
EUR      1,100,000 $    1,146,107
AMMC CLO 16
Series 2015-16A AR2 144A 4.991% (LIBOR03M + 0.98%, Floor 0.98%) 4/14/29 #, •
         599,070        594,409
Anchorage Capital CLO 9
Series 2016-9A AR2 144A 5.219% (LIBOR03M + 1.14%, Floor 1.14%) 7/15/32 #, •
       1,800,000      1,759,684
Anchorage Capital CLO 11
Series 2019-11A AR 144A 5.465% (LIBOR03M + 1.14%, Floor 1.14%) 7/22/32 #, •
       1,200,000      1,172,944
Apex Credit CLO
Series 2018-1A A2 144A 5.388% (LIBOR03M + 1.03%) 4/25/31 #, •
       2,400,000      2,335,253
Apidos CLO XXIV
Series 2016-24A A1AL 144A 5.193% (LIBOR03M + 0.95%, Floor 0.95%) 10/20/30 #, •
       1,350,000      1,327,841
Aqueduct European CLO DAC
Series 2017-1A AR 144A 2.096% (EUR003M + 0.64%, Floor 0.64%) 7/20/30 #, •
EUR      1,704,993      1,782,712
Ares European CLO
Series 7A A1RR 144A 2.038% (EUR003M + 0.66%, Floor 0.66%) 10/15/30 #, •
EUR      1,295,954      1,353,048
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Ares European CLO X DAC
Series 10A AR 144A 2.158% (EUR003M + 0.78%, Floor 0.78%) 10/15/31 #, •
EUR      2,700,000 $    2,796,185
Ares European CLO XII DAC
Series 12A AR 144A 2.306% (EUR003M + 0.85%, Floor 0.85%) 4/20/32 #, •
EUR        300,000        311,788
Ares European CLO XIV DAC
Series 14A A 144A 2.582% (EUR003M + 1.12%, Floor 1.12%) 10/21/33 #, •
EUR      3,750,000      3,925,534
Ares XL CLO
Series 2016-40A A1RR 144A 4.949% (LIBOR03M + 0.87%, Floor 0.87%) 1/15/29 #, •
       1,777,365      1,755,535
Ares XXXIX CLO
Series 2016-39A A1R2 144A 5.244% (LIBOR03M + 1.05%, Floor 1.05%) 4/18/31 #, •
       1,500,000      1,473,787
Atrium XII
Series 12A AR 144A 5.155% (LIBOR03M + 0.83%) 4/22/27 #, •
       2,091,221      2,065,344
Aurium CLO IV DAC
Series 4A AR 144A 2.108% (EUR003M + 0.73%, Floor 0.73%) 1/16/31 #, •
EUR      2,998,758      3,136,395
Bain Capital Euro CLO DAC
Series 2018-2A AR 144A 2.196% (EUR003M + 0.74%, Floor 0.74%) 1/20/32 #, •
EUR      1,300,000      1,355,710
Benefit Street Partners CLO XII
Series 2017-12A A1R 144A 5.029% (LIBOR03M + 0.95%, Floor 0.95%) 10/15/30 #, •
         500,000        491,894
 
NQ-OPTFI [12/22] 2/23 (2747704)    5

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Benefit Street Partners CLO XVII
Series 2019-17A AR 144A 5.159% (LIBOR03M + 1.08%, Floor 1.08%) 7/15/32 #, •
         700,000 $      682,304
Black Diamond CLO DAC
Series 2019-1A A1R 144A 2.778% (EUR003M + 0.98%, Floor 0.98%) 5/15/32 #, •
EUR        300,000        312,834
Blackrock European CLO VII DAC
Series 7A AR 144A 1.998% (EUR003M + 0.62%, Floor 0.62%) 10/15/31 #, •
EUR      2,200,000      2,282,404
BlueMountain Fuji EUR CLO III DAC
Series 3A A1R 144A 2.098% (EUR003M + 0.72%, Floor 0.72%) 1/15/31 #, •
EUR      1,399,335      1,459,910
BNPP AM Euro CLO
DAC
     
Series 2018-1A AR 144A 1.978% (EUR003M + 0.60%, Floor 0.60%) 4/15/31 #, • EUR        250,000        260,713
Series 2019-1A AR 144A 2.322% (EUR003M + 0.82%, Floor 0.82%) 7/22/32 #, • EUR      1,000,000      1,032,204
Cairn CLO IV DAC
Series 2014-4A ARRR 144A 2.178% (EUR003M + 0.60%, Floor 0.60%) 4/30/31 #, •
EUR      1,578,843      1,646,395
Cairn CLO X DAC
Series 2018-10A AR 144A 2.158% (EUR003M + 0.78%, Floor 0.78%) 10/15/31 #, •
EUR      1,400,000      1,451,435
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Carlyle Euro CLO DAC      
Series 2017-3A A1R 144A 2.078% (EUR003M + 0.70%, Floor 0.70%) 1/15/31 #, • EUR      1,899,133 $    1,977,611
Series 2019-2A A1R 144A 2.688% (EUR003M + 0.89%, Floor 0.89%) 8/15/32 #, • EUR        600,000        621,966
Carlyle Global Market Strategies CLO
Series 2013-1A A1RR 144A 5.60% (LIBOR03M + 0.95%, Floor 0.95%) 8/14/30 #, •
       2,471,729      2,438,935
Carlyle Global Market Strategies Euro CLO
Series 2014-2A AR1 144A 2.548% (EUR003M + 0.75%, Floor 0.75%) 11/15/31 #, •
EUR      1,500,000      1,561,270
CARLYLE US CLO
Series 2017-1A A1R 144A 5.243% (LIBOR03M + 1.00%, Floor 1.00%) 4/20/31 #, •
       1,500,000      1,477,429
CVC Cordatus Loan Fund VII DAC
Series 7A ARR 144A 2.676% (EUR003M + 0.63%, Floor 0.63%) 9/15/31 #, •
EUR      1,200,000      1,242,334
Dryden 27 R Euro CLO DAC
Series 2017-27A AR 144A 2.038% (EUR003M + 0.66%, Floor 0.66%) 4/15/33 #, •
EUR      2,200,000      2,271,955
Dryden 36 Senior Loan Fund
Series 2014-36A AR3 144A 5.099% (LIBOR03M + 1.02%, Floor 1.02%) 4/15/29 #, •
       3,286,672      3,251,071
 
6    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Dryden 52 Euro CLO DAC
Series 2017-52A AR 144A 2.622% (EUR003M + 0.86%, Floor 0.86%) 5/15/34 #, •
EUR      2,200,000 $    2,287,355
Euro-Galaxy III CLO DAC
Series 2013-3A ARRR 144A 2.122% (EUR003M + 0.62%, Floor 0.62%) 4/24/34 #, •
EUR      4,000,000      4,161,666
FS Rialto
Series 2022-FL4 A 144A 5.708% (SOFR + 1.90%, Floor 1.90%) 1/19/39 #, •
       3,500,000      3,414,204
Galaxy XXI CLO
Series 2015-21A AR 144A 5.263% (LIBOR03M + 1.02%) 4/20/31 #, •
       1,650,000      1,621,087
GoldenTree Loan Management EUR CLO DAC
Series 3A AR 144A 2.356% (EUR003M + 0.90%, Floor 0.90%) 1/20/32 #, •
EUR        300,000        310,875
Goldentree Loan Management US CLO 2
Series 2017-2A AR 144A 5.153% (LIBOR03M + 0.91%, Floor 0.91%) 11/20/30 #, •
       3,300,000      3,253,985
Harvest CLO XI DAC
Series 11A ARR 144A 2.775% (EUR003M + 0.65%, Floor 0.65%) 6/26/30 #, •
EUR      1,640,561      1,709,269
Harvest CLO XVI DAC
Series 16A ARR 144A 2.018% (EUR003M + 0.64%, Floor 0.64%) 10/15/31 #, •
EUR      2,000,000      2,085,273
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Harvest CLO XXI DAC
Series 21A A2R 144A 1.04% 7/15/31 #
EUR        250,000 $      239,912
HGI CRE CLO
Series 2022-FL3 A 144A 5.508% (SOFR + 1.70%, Floor 1.70%) 4/20/37 #, •
       3,000,000      2,926,422
Invesco Euro CLO I DAC
Series 1A A1R 144A 2.028% (EUR003M + 0.65%, Floor 0.65%) 7/15/31 #, •
EUR        250,000        258,626
Jubilee CLO DAC      
Series 2014-11A ARR 144A 1.988% (EUR003M + 0.61%, Floor 0.61%) 4/15/30 #, • EUR      1,700,000      1,770,984
Series 2014-12A ARRR 144A 1.978% (EUR003M + 0.60%, Floor 0.60%) 4/15/30 #, • EUR        600,000        630,612
Series 2016-17A A1RR 144A 2.028% (EUR003M + 0.65%, Floor 0.65%) 4/15/31 #, • EUR      1,400,000      1,446,873
Series 2016-17A A2RR 144A 2.028% (EUR003M + 0.65%, Floor 0.65%) 4/15/31 #, • EUR        500,000        510,537
KKR CLO 18
Series 18 AR 144A 5.134% (LIBOR03M + 0.94%, Floor 0.94%) 7/18/30 #, •
         471,566        465,612
Laurelin DAC
Series 2016-1A ARR 144A 2.176% (EUR003M + 0.72%, Floor 0.72%) 10/20/31 #, •
EUR      2,100,000      2,185,481
LCM XIII
Series 13A AR3 144A 5.097% (LIBOR03M + 0.87%, Floor 0.87%) 7/19/27 #, •
       3,024,259      2,982,367
 
NQ-OPTFI [12/22] 2/23 (2747704)    7

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
LCM XV
Series 15A AR2 144A 5.243% (LIBOR03M + 1.00%, Floor 1.00%) 7/20/30 #, •
       3,178,439 $    3,133,668
Man GLG Euro CLO III DAC
Series 3A AR 144A 2.058% (EUR003M + 0.68%, Floor 0.68%) 10/15/30 #, •
EUR      1,032,591      1,079,087
Man GLG Euro CLO V DAC
Series 5A A1R 144A 2.736% (EUR003M + 0.69%, Floor 0.69%) 12/15/31 #, •
EUR      1,900,000      1,982,606
Man GLG US CLO
Series 2018-1A A1R 144A 5.383% (LIBOR03M + 1.14%) 4/22/30 #, •
       3,000,000      2,933,259
Marathon CLO
Series 2021-16A A1A 144A 5.279% (LIBOR03M + 1.20%, Floor 1.20%) 4/15/34 #, •
       1,250,000      1,213,354
Marathon CLO V
Series 2013-5A A1R 144A 5.545% (LIBOR03M + 0.87%) 11/21/27 #, •
          18,261         18,221
Mountain View CLO X
Series 2015-10A AR 144A 4.761% (LIBOR03M + 0.82%, Floor 0.82%) 10/13/27 #, •
         372,547        371,620
Oak Hill European Credit Partners IV DAC
Series 2015-4A A1RE 144A 2.186% (EUR003M + 0.73%, Floor 0.73%) 1/20/32 #, •
EUR        295,093        307,694
Oaktree CLO
Series 2019-4A A1R 144A 5.363% (LIBOR03M + 1.12%, Floor 1.12%) 10/20/32 #, •
         500,000        487,336
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
OCP Euro CLO DAC
Series 2020-4A AR 144A 2.382% (EUR003M + 0.88%, Floor 0.88%) 9/22/34 #, •
EUR      1,900,000 $    1,957,693
OZLM IX
Series 2014-9A A1A3 144A 5.343% (LIBOR03M + 1.10%, Floor 1.10%) 10/20/31 #, •
         500,000        489,496
OZLM XVI
Series 2017-16A A1R 144A 5.674% (LIBOR03M + 1.03%, Floor 1.03%) 5/16/30 #, •
       2,516,100      2,479,016
OZLM XXIV
Series 2019-24A A1AR 144A 5.403% (LIBOR03M + 1.16%, Floor 1.16%) 7/20/32 #, •
       2,100,000      2,045,074
Palmer Square European Loan Funding DAC
Series 2021-1A A 144A 2.158% (EUR003M + 0.78%, Floor 0.78%) 4/15/31 #, •
EUR      1,792,371      1,868,079
Palmer Square Loan
Funding
     
Series 2021-3A A1 144A 5.043% (LIBOR03M + 0.80%, Floor 0.80%) 7/20/29 #, •          531,312        524,435
Series 2021-4A A1 144A 4.879% (LIBOR03M + 0.80%, Floor 0.80%) 10/15/29 #, •        2,107,824      2,078,295
Sculptor European CLO V DAC
Series 5A AR 144A 2.153% (EUR003M + 0.79%, Floor 0.79%) 1/14/32 #, •
EUR      3,300,000      3,432,675
 
8    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Segovia European CLO DAC
Series 2019-6A AR 144A 2.336% (EUR003M + 0.88%, Floor 0.88%) 7/20/32 #, •
EUR      1,600,000 $    1,654,284
Signal Peak CLO 5
Series 2018-5A A 144A 5.468% (LIBOR03M + 1.11%, Floor 1.11%) 4/25/31 #, •
       1,800,000      1,771,267
Sound Point CLO IX
Series 2015-2A ARRR 144A 5.453% (LIBOR03M + 1.21%, Floor 1.21%) 7/20/32 #, •
       2,600,000      2,521,178
Sound Point CLO XIV
Series 2016-3A AR2 144A 5.315% (LIBOR03M + 0.99%, Floor 0.99%) 1/23/29 #, •
       3,430,322      3,395,807
Sound Point CLO XVI
Series 2017-2A AR 144A 5.338% (LIBOR03M + 0.98%) 7/25/30 #, •
       4,400,000      4,326,252
Stratus CLO
Series 2021-3A A 144A 5.193% (LIBOR03M + 0.95%, Floor 0.95%) 12/29/29 #, •
       1,810,398      1,785,974
Symphony Static CLO I
Series 2021-1A A 144A 5.188% (LIBOR03M + 0.83%, Floor 0.83%) 10/25/29 #, •
         444,375        438,189
TCI-Symphony CLO
Series 2017-1A AR 144A 5.009% (LIBOR03M + 0.93%, Floor 0.93%) 7/15/30 #, •
         994,706        980,086
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
THL Credit Wind River CLO
Series 2019-3A AR 144A 5.159% (LIBOR03M + 1.08%, Floor 1.08%) 4/15/31 #, •
       3,100,000 $    3,025,026
Tikehau CLO DAC
Series 2015-1A ARR 144A 2.596% (EUR003M + 0.87%, Floor 0.87%) 8/4/34 #, •
EUR      2,000,000      2,074,892
Toro European CLO 6 DAC
Series 6A AR 144A 2.239% (EUR003M + 0.92%, Floor 0.92%) 1/12/32 #, •
EUR        300,000        309,990
Toro European CLO 7 DAC
Series 7A ARE 144A 2.572% (EUR003M + 0.81%, Floor 0.81%) 2/15/34 #, •
EUR      1,900,000      1,992,863
Venture 32 CLO
Series 2018-32A A1 144A 5.294% (LIBOR03M + 1.10%, Floor 1.10%) 7/18/31 #, •
         500,000        491,337
Venture 34 CLO
Series 2018-34A A 144A 5.309% (LIBOR03M + 1.23%, Floor 1.23%) 10/15/31 #, •
       2,500,000      2,450,062
Venture 38 CLO
Series 2019-38A A1R 144A 5.575% (LIBOR03M + 1.16%, Floor 1.16%) 7/30/32 #, •
       2,900,000      2,831,418
Venture 42 CLO
Series 2021-42A A1A 144A 5.209% (LIBOR03M + 1.13%, Floor 1.13%) 4/15/34 #, •
       1,300,000      1,240,565
Venture XVII CLO
Series 2014-17A ARR 144A 4.959% (LIBOR03M + 0.88%) 4/15/27 #, •
         273,371        270,787
 
NQ-OPTFI [12/22] 2/23 (2747704)    9

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Collateralized Debt Obligations (continued)
Venture XXIV CLO
Series 2016-24A ARR 144A 5.143% (LIBOR03M + 0.90%, Floor 0.90%) 10/20/28 #, •
         419,394 $      411,174
Venture XXVI CLO
Series 2017-26A AR 144A 5.343% (LIBOR03M + 1.10%, Floor 1.10%) 1/20/29 #, •
       3,285,676      3,229,853
Vibrant CLO IV
Series 2016-4A A1RR 144A 5.363% (LIBOR03M + 1.12%, Floor 1.12%) 7/20/32 #, •
       1,300,000      1,270,898
Vibrant CLO VI
Series 2017-6A AR 144A 5.696% (LIBOR03M + 0.95%) 6/20/29 #, •
       1,801,149      1,775,180
Vibrant CLO VII
Series 2017-7A A1R 144A 5.283% (LIBOR03M + 1.04%, Floor 1.04%) 9/15/30 #, •
       4,481,908      4,412,286
Vibrant CLO XI
Series 2019-11A A1R1 144A 5.363% (LIBOR03M + 1.12%, Floor 1.12%) 7/20/32 #, •
       1,500,000      1,470,885
Voya
Series 2012-4A A1R3 144A 5.079% (LIBOR03M + 1.00%) 10/15/30 #, •
       1,400,000      1,378,355
Voya CLO
Series 2014-4A A1RA 144A 5.111% (LIBOR03M + 1.10%) 7/14/31 #, •
         842,321       830,175
Total Collateralized Debt Obligations
(cost $170,429,706)
  158,930,208
 
Convertible Bonds — 0.23%
Kaman 3.25% exercise price $65.26, maturity date 5/1/24        2,540,000      2,373,630
    Principal
amount°
Value (US $)
Convertible Bonds (continued)
Liberty Broadband 144A 2.75% exercise price $857.56, maturity date 9/30/50 #           57,000 $       55,658
Liberty Broadband 144A 1.25% exercise price $900.01, maturity date 9/30/50 #        1,722,000      1,670,340
Spirit Airlines 1.00% exercise price $49.07, maturity date 5/15/26        1,906,000     1,543,860
Total Convertible Bonds
(cost $5,967,761)
    5,643,488
 
Corporate Bonds — 32.41%
Banking — 9.96%
Access Bank      
144A 6.125% 9/21/26 #          300,000        233,700
144A 9.125% 10/7/26 #, μ, ψ          325,000        233,854
Akbank TAS 144A 6.80% 2/6/26 #          370,000        358,525
Banco Bilbao Vizcaya Argentaria 5.875% 9/24/23 μ, ψ EUR        800,000        825,102
Banco Continental 144A 2.75% 12/10/25 #          600,000        537,519
Banco de Bogota      
144A 4.375% 8/3/27 #          200,000        181,944
144A 6.25% 5/12/26 #          200,000        196,477
Banco de Credito e Inversiones 144A 3.50% 10/12/27 #          435,000        401,157
Banco GNB Sudameris 144A 7.50% 4/16/31 #, μ          420,000        305,556
Banco Industrial 144A 4.875% 1/29/31 #, μ          320,000        300,408
Banco Mercantil del Norte 144A 8.375% 10/14/30 #, μ, ψ          275,000        273,074
Banco Nacional de Panama 144A 2.50% 8/11/30 #          200,000        160,655
Banco Santander      
2.958% 3/25/31         1,000,000        797,236
 
10    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Banking (continued)
Banco Santander      
3.496% 3/24/25         1,000,000 $      963,784
3.892% 5/24/24         1,400,000      1,371,274
4.175% 3/24/28 μ        1,200,000      1,114,778
Bancolombia 7.139% 10/18/27 μ          315,000        310,586
Bangkok Bank 144A 5.00% 9/23/25 #, μ, ψ          280,000        265,879
Bank Hapoalim 144A 3.255% 1/21/32 #, μ          595,000        514,520
Bank Leumi Le-Israel      
144A 3.275% 1/29/31 #, μ          300,000        266,609
144A 5.125% 7/27/27 #, μ          535,000        532,080
Bank of America      
2.482% 9/21/36 μ        9,185,000      6,769,869
2.676% 6/19/41 μ        1,865,000      1,261,302
3.384% 4/2/26 μ          500,000        477,942
3.55% 3/5/24 μ        2,100,000      2,092,241
3.864% 7/23/24 μ        2,200,000      2,180,560
3.974% 2/7/30 μ        3,400,000      3,094,801
4.125% 1/22/24           200,000        198,362
4.30% 1/28/25 μ, ψ          900,000        779,658
6.204% 11/10/28 μ        3,000,000      3,102,806
Bank of New York
Mellon
     
4.70% 9/20/25 μ, ψ        2,560,000      2,464,333
5.802% 10/25/28 μ          581,000        601,828
Barclays      
3.33% 11/24/42 μ        1,300,000        892,026
3.375% 4/2/25 μ EUR        500,000        530,252
4.972% 5/16/29 μ        3,000,000      2,822,817
5.501% 8/9/28 μ        1,600,000      1,552,243
6.024% (LIBOR03M + 1.38%) 5/16/24 •        1,800,000      1,800,083
6.375% 12/15/25 μ, ψ GBP        500,000        555,731
7.125% 6/15/25 μ, ψ GBP      1,800,000      2,062,702
7.25% 3/15/23 μ, ψ GBP        700,000        838,632
7.325% 11/2/26 μ        1,280,000      1,327,223
7.75% 9/15/23 μ, ψ          400,000        391,520
BBVA Bancomer 144A 5.875% 9/13/34 #, μ          400,000        370,121
BNP Paribas      
144A 1.904% 9/30/28 #, μ        1,800,000      1,501,593
144A 2.159% 9/15/29 #, μ          600,000        490,195
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Banking (continued)
BNP Paribas      
144A 2.871% 4/19/32 #, μ          300,000 $      235,296
144A 3.052% 1/13/31 #, μ        2,600,000      2,136,249
7.375% 8/19/25 μ, ψ          500,000        494,736
144A 7.375% 8/19/25 #, μ, ψ          700,000        692,631
CIMB Bank 144A 2.125% 7/20/27 #          550,000        481,925
Citigroup      
3.20% 10/21/26         1,000,000        926,516
4.044% 6/1/24 μ        1,800,000      1,788,306
4.075% 4/23/29 μ        2,400,000      2,212,702
5.61% 9/29/26 μ        3,070,000      3,086,362
Citizens Bank 6.064% 10/24/25 μ        2,130,000      2,155,541
Cooperatieve
Rabobank
     
3.75% 7/21/26         1,350,000      1,269,296
4.375% 8/4/25         2,000,000      1,954,068
Credit Suisse Group      
144A 2.593% 9/11/25 #, μ        1,105,000        977,531
3.80% 6/9/23         2,300,000      2,240,014
144A 4.194% 4/1/31 #, μ        2,500,000      1,945,541
144A 4.50% 9/3/30 #, μ, ψ          820,000        460,893
144A 6.25% 12/18/24 #, μ, ψ        2,000,000      1,576,746
144A 6.375% 8/21/26 #, μ, ψ        1,900,000      1,366,418
144A 6.442% 8/11/28 #, μ        5,555,000      5,067,068
7.50% 12/11/23 μ          400,000        350,400
Deutsche Bank      
2.129% 11/24/26 μ          700,000        618,248
3.547% 9/18/31 μ        1,500,000      1,205,780
3.729% 1/14/32 μ        2,591,000      1,904,941
3.961% 11/26/25 μ        5,700,000      5,450,787
6.119% 7/14/26 μ        3,000,000      2,982,798
Emirates NBD Bank
PJSC
     
2.625% 2/18/25           295,000        280,198
6.125% 4/9/26 μ, ψ          305,000        298,411
Fifth Third Bancorp      
2.55% 5/5/27             1,000            899
3.95% 3/14/28             4,000          3,838
4.337% 4/25/33 μ          507,000        464,671
 
NQ-OPTFI [12/22] 2/23 (2747704)    11

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Banking (continued)
Fifth Third Bancorp      
6.361% 10/27/28 μ            3,000 $        3,092
Fifth Third Bank 5.852% 10/27/25 μ        1,575,000      1,592,034
First Abu Dhabi Bank 4.50% 4/5/26 μ, ψ          325,000        312,061
Goldman Sachs Group      
0.673% 3/8/24 μ          700,000        692,509
1.431% 3/9/27 μ        2,000,000      1,756,038
1.542% 9/10/27 μ        3,993,000      3,449,494
3.615% 3/15/28 μ        2,000,000      1,865,897
4.223% 5/1/29 μ        4,700,000      4,387,155
Hana Bank 144A 1.25% 12/16/26 #          345,000        296,722
HSBC Holdings      
1.589% 5/24/27 μ        2,200,000      1,899,407
2.848% 6/4/31 μ        2,700,000      2,160,682
2.871% 11/22/32 μ        2,000,000      1,533,265
2.999% 3/10/26 μ          700,000        658,481
4.30% 3/8/26           200,000        193,685
4.70% 3/9/31 μ, ψ          500,000        397,446
5.21% 8/11/28 μ          500,000        483,187
5.674% (LIBOR03M + 1.00%) 5/18/24 •        1,000,000        996,310
5.875% 9/28/26 μ, ψ GBP        500,000        540,743
Huntington National
Bank
     
4.552% 5/17/28 μ          395,000        381,744
5.65% 1/10/30           855,000        863,554
ICICI Bank 144A 4.00% 3/18/26 #          335,000        319,739
Intesa Sanpaolo      
144A 4.00% 9/23/29 #        1,300,000      1,114,863
7.75% 1/11/27 μ, ψ EUR        200,000        207,084
Itau Unibanco Holding 144A 3.875% 4/15/31 #, μ          400,000        364,286
JPMorgan Chase &
Co.
     
1.764% 11/19/31 μ        2,335,000      1,775,342
1.953% 2/4/32 μ        1,170,000        897,661
2.595% 2/24/26 μ        1,500,000      1,411,440
2.947% 2/24/28 μ        1,100,000        996,641
2.963% 1/25/33 μ          500,000        408,254
3.109% 4/22/51 μ          455,000        300,088
3.22% 3/1/25 μ          500,000        486,195
3.882% 7/24/38 μ        1,545,000      1,288,022
4.005% 4/23/29 μ          900,000        834,251
4.851% 7/25/28 μ        4,060,000      3,964,286
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Banking (continued)
JPMorgan Chase &
Co.
     
5.00% 8/1/24 μ, ψ          400,000 $      366,222
KeyBank 5.85% 11/15/27         2,411,000      2,492,897
Lloyds Banking Group      
2.438% 2/5/26 μ          300,000        279,539
3.50% 4/1/26 μ EUR        200,000        210,772
3.75% 3/18/28 μ        1,400,000      1,294,409
Mitsubishi UFJ
Financial Group
     
2.193% 2/25/25         1,700,000      1,592,383
2.559% 2/25/30         1,800,000      1,493,575
Mizuho Financial
Group
     
2.226% 5/25/26 μ        1,600,000      1,470,954
2.564% 9/13/31         1,400,000      1,070,146
2.591% 5/25/31 μ        2,000,000      1,611,068
3.261% 5/22/30 μ        3,100,000      2,688,194
Morgan Stanley      
0.495% 10/26/29 μ EUR      2,000,000      1,720,147
1.928% 4/28/32 μ        1,415,000      1,070,960
2.484% 9/16/36 μ        5,700,000      4,146,123
3.625% 1/20/27         4,000,000      3,777,882
6.138% 10/16/26 μ          865,000        884,392
6.296% 10/18/28 μ        1,335,000      1,380,494
6.342% 10/18/33 μ          715,000        751,467
Nationwide Building
Society
     
144A 2.972% 2/16/28 #, μ          800,000        704,305
144A 3.766% 3/8/24 #, μ          800,000        795,672
144A 4.302% 3/8/29 #, μ        5,200,000      4,700,590
NatWest Group      
4.80% 4/5/26         5,000,000      4,895,716
5.125% 5/12/27 μ, ψ GBP        500,000        509,244
NBK SPC 144A 1.625% 9/15/27 #, μ          710,000        625,632
Nykredit Realkredit 2.00% 10/1/53  DKK              1              0
PNC Bank 4.05% 7/26/28         2,400,000      2,262,814
PNC Financial
Services Group
     
5.671% 10/28/25 μ        1,250,000      1,264,198
6.20% 9/15/27 μ, ψ        1,090,000      1,067,928
QNB Finance 2.625% 5/12/25           455,000        430,692
 
12    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Banking (continued)
Santander UK Group Holdings 3.823% 11/3/28 μ        3,200,000 $    2,864,714
Shinhan Bank 3.875% 3/24/26           345,000        322,228
Shinhan Financial Group 144A 3.34% 2/5/30 #, μ          410,000        375,840
Societe Generale      
144A 4.25% 4/14/25 #        3,600,000      3,456,308
144A 4.677% 6/15/27 #        3,500,000      3,408,700
7.875% 12/18/23 μ, ψ          500,000        496,159
Standard Chartered 7.75% 4/2/23 μ, ψ          300,000        298,390
State Street      
2.203% 2/7/28 μ        1,210,000      1,088,669
5.751% 11/4/26 μ          280,000        286,925
5.82% 11/4/28 μ          195,000        201,724
Sumitomo Mitsui
Financial Group
     
1.474% 7/8/25         2,600,000      2,371,419
2.222% 9/17/31         2,300,000      1,779,876
SVB Financial Group      
1.80% 2/2/31           775,000        567,094
4.00% 5/15/26 μ, ψ        2,110,000      1,395,280
4.57% 4/29/33 μ        2,910,000      2,582,644
Toronto-Dominion Bank 4.108% 6/8/27         2,710,000      2,623,991
Truist Bank 2.636% 9/17/29 μ        5,182,000      4,849,423
Truist Financial      
1.887% 6/7/29 μ        3,485,000      2,923,175
4.95% 9/1/25 μ, ψ        1,465,000      1,404,349
6.123% 10/28/33 μ          755,000        796,792
UBS 5.125% 5/15/24           200,000        197,829
UBS Group      
0.25% 11/5/28 μ EUR      1,000,000        875,447
144A 3.126% 8/13/30 #, μ        2,000,000      1,699,565
UniCredit      
7.50% 6/3/26 μ, ψ EUR        600,000        626,220
144A 7.83% 12/4/23 #        2,900,000      2,930,693
US Bancorp      
2.491% 11/3/36 μ        3,400,000      2,595,456
3.375% 2/5/24         2,915,000      2,864,179
3.60% 9/11/24         1,275,000      1,248,879
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Banking (continued)
US Bancorp      
3.95% 11/17/25         2,820,000 $    2,754,215
5.727% 10/21/26 μ          885,000        902,346
US Bank 3.40% 7/24/23           815,000        807,742
Virgin Money UK      
3.375% 4/24/26 μ GBP        100,000        111,688
4.00% 9/25/26 μ GBP        800,000        898,564
Wells Fargo & Co.      
3.196% 6/17/27 μ          900,000        835,932
3.584% 5/22/28 μ        5,300,000      4,929,198
3.90% 3/15/26 μ, ψ        1,000,000        875,890
4.808% 7/25/28 μ        2,720,000     2,661,095
    239,231,078
Basic Industry — 1.36%
AngloGold Ashanti Holdings 3.375% 11/1/28           595,000        519,779
Antofagasta 144A 5.625% 5/13/32 #          355,000        348,626
Braskem Netherlands Finance 144A 4.50% 1/31/30 #          370,000        315,504
Celanese US Holdings      
6.05% 3/15/25           590,000        588,203
6.165% 7/15/27         2,095,000      2,069,715
Corp Nacional del
Cobre de Chile
     
144A 3.70% 1/30/50 #          225,000        168,345
144A 4.25% 7/17/42 #          200,000        165,770
CSN Resources 144A 5.875% 4/8/32 #          385,000        322,696
First Quantum
Minerals
     
144A 6.875% 10/15/27 #          360,000        338,502
144A 7.50% 4/1/25 #          210,000        204,834
FMG Resources August 2006 144A 6.125% 4/15/32 #        7,300,000      6,818,528
Freeport Indonesia      
144A 5.315% 4/14/32 #          435,000        401,172
6.20% 4/14/52 #          200,000        175,102
GC Treasury Center 144A 5.20% 3/30/52 #          450,000        362,284
 
NQ-OPTFI [12/22] 2/23 (2747704)    13

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Basic Industry (continued)
Georgia-Pacific 8.00% 1/15/24         2,242,000 $    2,310,062
ICL Group 144A 6.375% 5/31/38 #          210,000        206,734
INEOS Styrolution Group 144A 2.25% 1/16/27 # EUR        500,000        437,145
MEGlobal Canada 144A 5.00% 5/18/25 #          400,000        393,660
Methanex 5.25% 12/15/29         2,515,000      2,235,909
Metinvest 144A 7.75% 10/17/29 #          627,000        318,203
Newmont      
2.25% 10/1/30         1,875,000      1,511,347
2.60% 7/15/32         1,160,000        926,630
2.80% 10/1/29         3,850,000      3,281,188
Novelis 144A 4.75% 1/30/30 #          835,000        742,165
OCP      
144A 3.75% 6/23/31 #          200,000        168,242
144A 5.125% 6/23/51 #          240,000        183,092
144A 6.875% 4/25/44 #          250,000        237,292
Phosagro OAO Via Phosagro Bond Funding DAC 144A 3.949% 4/24/23 #          380,000        294,480
Sasol Financing USA 6.50% 9/27/28           465,000        423,193
Sherwin-Williams 3.30% 5/15/50         3,495,000      2,404,514
Stillwater Mining 144A 4.00% 11/16/26 #          340,000        300,678
Vale Overseas 3.75% 7/8/30           305,000        267,542
Vedanta Resources Finance II 144A 8.95% 3/11/25 #          590,000        401,536
Volcan Cia Minera 144A 4.375% 2/11/26 #          222,000        191,541
Westlake 3.125% 8/15/51         4,310,000     2,671,076
     32,705,289
Brokerage — 0.25%
Charles Schwab 5.375% 6/1/25 μ, ψ        2,495,000      2,452,585
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Brokerage (continued)
Jefferies Group      
2.625% 10/15/31         2,925,000 $    2,238,311
6.45% 6/8/27           331,000        346,041
6.50% 1/20/43           880,000        861,406
XP 144A 3.25% 7/1/26 #          200,000       179,994
      6,078,337
Capital Goods — 0.98%
Abertis Infraestructuras Finance 3.248% 11/24/25 μ, ψ EUR      1,500,000      1,363,273
Aeropuerto Internacional de Tocumen 144A 5.125% 8/11/61 #          200,000        164,371
Aeropuertos Argentina 2000 144A 8.50% 8/1/31 #          455,723        382,261
Ardagh Metal Packaging Finance USA 144A 3.25% 9/1/28 #        4,600,000      3,913,290
Boeing      
1.95% 2/1/24         2,000,000      1,927,548
3.25% 2/1/28         1,545,000      1,405,748
3.75% 2/1/50         5,355,000      3,698,990
Caterpillar 2.60% 4/9/30            25,000         21,793
Cellnex Finance 144A 3.875% 7/7/41 #        3,159,000      2,165,321
GCC 144A 3.614% 4/20/32 #          390,000        325,136
Hutama Karya Persero 144A 3.75% 5/11/30 #          454,000        411,947
IHS Holding 144A 5.625% 11/29/26 #          640,000        533,760
Klabin Austria 144A 3.20% 1/12/31 #          425,000        340,552
Rolls-Royce 144A 5.75% 10/15/27 #        1,000,000        954,130
Rutas 2 and 7 Finance 144A 2.741% 9/30/36 #, ^          476,000        300,846
SAN Miguel Industrias Pet 144A 3.50% 8/2/28 #          605,000        517,074
Standard Industries 144A 3.375% 1/15/31 #        1,568,000      1,183,194
 
14    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Capital Goods (continued)
State Agency of Roads of Ukraine 144A 6.25% 6/24/30 #          575,000 $      102,747
Summit Digitel Infrastructure 144A 2.875% 8/12/31 #          535,000        411,661
Teledyne Technologies      
2.25% 4/1/28         1,980,000      1,708,302
2.75% 4/1/31         1,730,000      1,418,838
UltraTech Cement 144A 2.80% 2/16/31 #          420,000       334,719
     23,585,501
Communications — 2.90%
Alibaba Group Holding 2.70% 2/9/41           465,000        298,105
Altice Financing 144A 5.00% 1/15/28 #          345,000        278,467
Altice France      
2.125% 2/15/25  EUR      1,900,000      1,805,042
144A 5.50% 10/15/29 #        1,375,000      1,050,933
Amazon.com      
1.50% 6/3/30         1,000,000        805,835
2.50% 6/3/50         1,460,000        926,783
America Movil 4.70% 7/21/32           420,000        403,667
AT&T      
2.55% 12/1/33         2,673,000      2,062,060
3.50% 6/1/41         1,680,000      1,259,387
3.50% 9/15/53         7,070,000      4,803,606
Axian Telecom 144A 7.375% 2/16/27 #          380,000        334,400
CCO Holdings      
144A 4.25% 1/15/34 #        5,700,000      4,218,000
144A 4.50% 8/15/30 #          500,000        414,205
144A 5.00% 2/1/28 #          900,000        819,175
Charter
Communications Operating
     
3.85% 4/1/61         1,540,000        896,098
4.40% 12/1/61         4,252,000      2,735,898
4.908% 7/23/25           430,000        421,859
5.05% 3/30/29         3,800,000      3,583,012
Comcast 3.20% 7/15/36         1,830,000      1,489,993
Connect Finco 144A 6.75% 10/1/26 #        1,740,000      1,616,146
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Communications (continued)
CSC Holdings 144A 4.625% 12/1/30 #          890,000 $      493,807
CT Trust 144A 5.125% 2/3/32 #          750,000        659,653
Discovery Communications 4.00% 9/15/55         9,190,000      5,554,294
Frontier Communications Holdings 144A 5.875% 10/15/27 #        1,165,000      1,084,347
JD.com 3.875% 4/29/26           525,000        497,926
Sprint 7.625% 3/1/26           200,000        210,901
Sprint Spectrum 144A 4.738% 9/20/29 #          824,063        814,740
Tencent Holdings      
144A 2.88% 4/22/31 #          370,000        308,491
144A 3.68% 4/22/41 #          400,000        294,735
Time Warner Cable 7.30% 7/1/38         2,120,000      2,111,044
Time Warner Entertainment 8.375% 3/15/23         1,415,000      1,423,954
T-Mobile USA      
1.50% 2/15/26         2,100,000      1,882,740
3.00% 2/15/41         4,640,000      3,291,676
3.30% 2/15/51         1,500,000      1,007,605
3.75% 4/15/27         2,150,000      2,028,355
3.875% 4/15/30         1,400,000      1,271,425
Turkcell Iletisim Hizmetleri 144A 5.80% 4/11/28 #          350,000        303,485
VEON Holdings 144A 3.375% 11/25/27 #          760,000        527,329
Verizon
Communications
     
2.10% 3/22/28         1,100,000        956,591
2.355% 3/15/32         1,570,000      1,248,696
2.55% 3/21/31           800,000        659,862
2.875% 11/20/50         1,100,000        694,382
3.40% 3/22/41         1,845,000      1,394,558
4.50% 8/10/33         6,325,000      5,938,630
5.706% (LIBOR03M + 1.10%) 5/15/25 •        3,200,000      3,227,064
Vmed O2 UK Financing I 144A 4.25% 1/31/31 #        1,885,000     1,530,186
     69,639,147
 
NQ-OPTFI [12/22] 2/23 (2747704)    15

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Consumer Cyclical — 1.58%
Alsea 144A 7.75% 12/14/26 #          375,000 $      372,458
Aptiv 3.10% 12/1/51         4,171,000      2,481,118
Arcos Dorados 144A 6.125% 5/27/29 #          405,000        393,026
Carnival      
144A 4.00% 8/1/28 #          730,000        596,673
144A 7.625% 3/1/26 #        2,103,000      1,670,549
Ford Motor Credit      
1.744% 7/19/24  EUR        300,000        307,472
2.30% 2/10/25           345,000        315,530
2.33% 11/25/25  EUR        200,000        197,582
2.386% 2/17/26  EUR        500,000        489,907
2.70% 8/10/26           700,000        608,755
2.748% 6/14/24  GBP        100,000        114,566
2.90% 2/16/28           765,000        632,765
2.90% 2/10/29           500,000        400,018
3.25% 9/15/25  EUR      1,000,000      1,019,550
4.535% 3/6/25  GBP      1,100,000      1,267,139
4.542% 8/1/26         1,514,000      1,397,611
5.125% 6/16/25           600,000        578,125
Future Retail 144A 5.60% 1/22/25 #          565,000         22,600
General Motors Financial 5.70% 9/30/30 μ, ψ        1,780,000      1,513,222
Hilton Domestic
Operating
     
144A 3.625% 2/15/32 #          700,000        561,806
144A 4.00% 5/1/31 #          700,000        587,083
Hilton Grand Vacations Borrower Escrow 144A 5.00% 6/1/29 #          900,000        775,147
Hyatt Hotels 1.80% 10/1/24           300,000        281,300
Hyundai Capital Services 144A 0.75% 9/15/23 #        1,800,000      1,731,240
InRetail Consumer 144A 3.25% 3/22/28 #          530,000        456,478
Kia 144A 2.375% 2/14/25 #          395,000        366,821
Marriott International 3.50% 10/15/32           900,000        751,173
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Consumer Cyclical (continued)
Melco Resorts Finance      
144A 5.375% 12/4/29 #          200,000 $      160,818
5.75% 7/21/28           200,000        167,544
MGM China Holdings      
144A 4.75% 2/1/27 #          725,000        642,308
144A 5.25% 6/18/25 #          600,000        565,211
Nemak 144A 3.625% 6/28/31 #          365,000        286,043
Nissan Motor      
144A 3.043% 9/15/23 #        1,800,000      1,764,088
144A 4.345% 9/17/27 #        2,700,000      2,452,455
144A 4.81% 9/17/30 #          800,000        680,692
Nissan Motor
Acceptance
     
144A 2.45% 9/15/28 #          300,000        233,634
144A 3.875% 9/21/23 #        3,000,000      2,945,355
Royal Caribbean Cruises 144A 5.50% 4/1/28 #        1,270,000      1,015,771
Sands China      
2.80% 3/8/27           200,000        171,558
3.35% 3/8/29           400,000        327,325
3.75% 8/8/31           740,000        583,310
4.30% 1/8/26           400,000        369,660
5.90% 8/8/28         1,800,000      1,687,793
Studio City Finance 144A 6.50% 1/15/28 #          695,000        540,779
Turkiye Sise ve Cam Fabrikalari 144A 6.95% 3/14/26 #          420,000        410,440
Warnermedia Holdings      
144A 3.638% 3/15/25 #          400,000        380,714
144A 3.755% 3/15/27 #          400,000        360,781
144A 5.05% 3/15/42 #          800,000        614,900
144A 5.141% 3/15/52 #        1,825,000      1,333,760
Wynn Macau      
5.50% 1/15/26           200,000        183,784
 
16    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Consumer Cyclical (continued)
Wynn Macau      
5.50% 10/1/27           200,000 $      175,134
     37,943,571
Consumer Non-Cyclical — 2.67%
AbbVie      
2.85% 5/14/23           900,000        893,618
3.75% 11/14/23         1,200,000      1,188,403
4.05% 11/21/39         3,193,000      2,746,386
Amgen 2.20% 2/21/27         3,300,000      2,965,421
Ashtead Capital      
144A 1.50% 8/12/26 #          665,000        568,315
144A 2.45% 8/12/31 #          585,000        452,994
Bacardi 144A 4.45% 5/15/25 #          500,000        485,599
Bausch Health      
144A 11.00% 9/30/28 #          887,000        696,157
144A 14.00% 10/15/30 #          177,000        105,960
Baxter International 3.132% 12/1/51         2,336,000      1,517,796
Becton Dickinson Euro Finance 1.336% 8/13/41  EUR        700,000        466,837
Bellis Acquisition 3.25% 2/16/26  GBP      3,300,000      3,260,946
Bidvest Group UK 144A 3.625% 9/23/26 #          530,000        478,919
Centene 3.375% 2/15/30         1,000,000        847,625
Central American Bottling 144A 5.25% 4/27/29 #          335,000        312,969
Cia Cervecerias Unidas 144A 3.35% 1/19/32 #          295,000        249,235
Coca-Cola Icecek 144A 4.50% 1/20/29 #          400,000        349,390
Coty 144A 5.00% 4/15/26 #        1,500,000      1,424,493
CVS Health      
2.70% 8/21/40         2,755,000      1,913,644
4.78% 3/25/38         5,620,000      5,141,868
5.05% 3/25/48         2,635,000      2,378,444
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Consumer Non-Cyclical (continued)
CVS Pass Through Trust 144A 5.773% 1/10/33 #, ♦           61,228 $       59,865
Danone 144A 2.589% 11/2/23 #        1,500,000      1,469,250
GE HealthCare
Technologies
     
144A 5.60% 11/15/25 #          730,000        735,279
144A 5.65% 11/15/27 #          730,000        739,822
Global Payments 3.20% 8/15/29         2,150,000      1,832,025
GSK Consumer Healthcare Capital UK 3.125% 3/24/25           500,000        475,916
GSK Consumer Healthcare Capital US 3.375% 3/24/29           500,000        450,649
HCA 4.125% 6/15/29         3,400,000      3,111,004
Humana      
5.75% 3/1/28         1,170,000      1,196,788
5.875% 3/1/33           310,000        321,016
Indofood CBP Sukses Makmur 3.541% 4/27/32           465,000        383,772
International Container Terminal Services 4.75% 6/17/30           745,000        655,488
JBS USA LUX 144A 3.00% 2/2/29 #        1,466,000      1,216,508
MARB BondCo 144A 3.95% 1/29/31 #          410,000        315,548
MHP Lux 144A 6.25% 9/19/29 #          425,000        202,143
Mondelez International 2.125% 3/17/24           500,000        482,408
Natura & Co. Luxembourg Holdings 144A 6.00% 4/19/29 #          200,000        175,286
Pilgrim's Pride 144A 5.875% 9/30/27 #        1,458,000      1,416,733
Regeneron Pharmaceuticals 2.80% 9/15/50         1,170,000        730,644
Royalty Pharma      
1.75% 9/2/27         7,625,000      6,465,512
3.35% 9/2/51         1,298,000        805,257
3.55% 9/2/50         1,250,000        803,734
 
NQ-OPTFI [12/22] 2/23 (2747704)    17

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Consumer Non-Cyclical (continued)
Takeda
Pharmaceutical
     
3.025% 7/9/40           985,000 $      726,668
3.175% 7/9/50         4,797,000      3,256,874
Tenet Healthcare      
144A 4.25% 6/1/29 #        1,790,000      1,553,980
144A 6.125% 10/1/28 #        1,815,000      1,628,835
Teva Pharmaceutical
Finance Netherlands III
     
5.125% 5/9/29           365,000        325,524
6.75% 3/1/28           385,000        376,259
United Rentals North America 3.875% 2/15/31           869,000        730,434
UnitedHealth Group 3.70% 5/15/27           600,000        581,350
Viatris      
1.65% 6/22/25           320,000        290,107
2.70% 6/22/30         1,940,000      1,520,878
4.00% 6/22/50           450,000        278,816
Zoetis 5.40% 11/14/25           420,000       428,849
     64,188,240
Energy — 2.71%
BP Capital Markets 4.875% 3/22/30 μ, ψ        2,750,000      2,414,844
BP Capital Markets America 2.721% 1/12/32         1,465,000      1,224,977
Canacol Energy 144A 5.75% 11/24/28 #          440,000        389,297
CNX Resources 144A 6.00% 1/15/29 #        2,275,000      2,096,706
Crestwood Midstream Partners 144A 6.00% 2/1/29 #        1,737,000      1,596,226
Ecopetrol 4.625% 11/2/31           335,000        256,571
Ecopetrol SA 5.875% 11/2/51           320,000        215,678
EIG Pearl Holdings 144A 3.545% 8/31/36 #          465,000        391,359
Energean Israel Finance 144A 4.875% 3/30/26 #          325,000        301,665
Energo-Pro 144A 8.50% 2/4/27 #          670,000        614,708
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Energy (continued)
Energy Transfer      
4.95% 5/15/28           700,000 $      672,698
5.25% 4/15/29           655,000        634,749
5.50% 6/1/27         3,200,000      3,182,407
5.75% 2/15/33           585,000        573,467
6.25% 4/15/49         4,420,000      4,131,320
6.50% 11/15/26 μ, ψ        3,380,000      2,915,250
Enterprise Products
Operating
     
3.20% 2/15/52         4,365,000      2,879,463
3.30% 2/15/53           570,000        381,728
EQT 6.125% 2/1/25         1,100,000      1,104,378
Galaxy Pipeline Assets Bidco 144A 2.94% 9/30/40 #          483,265        390,264
Geopark 144A 5.50% 1/17/27 #          320,000        275,624
Guara Norte 144A 5.198% 6/15/34 #          591,871        501,654
Indika Energy Capital IV 144A 8.25% 10/22/25 #          645,000        638,194
KazMunayGas
National
     
144A 4.75% 4/19/27 #          200,000        185,100
144A 5.375% 4/24/30 #          320,000        287,623
KazTransGas JSC 144A 4.375% 9/26/27 #          630,000        570,912
Kosmos Energy 144A 7.75% 5/1/27 #          625,000        522,716
MC Brazil Downstream Trading 144A 7.25% 6/30/31 #          335,000        276,897
Medco Laurel Tree 144A 6.95% 11/12/28 #          405,000        359,260
MPLX 1.75% 3/1/26           685,000        611,354
Murphy Oil 5.875% 12/1/27         1,730,000      1,667,737
NuStar Logistics      
5.625% 4/28/27           205,000        192,039
6.375% 10/1/30         2,337,000      2,165,090
Oil and Gas Holding 144A 7.625% 11/7/24 #          200,000        203,886
ONEOK      
4.35% 3/15/29         1,500,000      1,389,366
 
18    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Energy (continued)
ONEOK      
7.50% 9/1/23         2,840,000 $    2,872,150
PDC Energy 5.75% 5/15/26         1,205,000      1,152,221
Pertamina Persero 144A 3.65% 7/30/29 #          197,000        181,263
Petrobras Global Finance 6.75% 6/3/50           185,000        161,781
Petroleos Mexicanos      
5.95% 1/28/31           600,000        455,480
6.70% 2/16/32            76,000         59,827
6.75% 9/21/47           390,000        249,711
7.69% 1/23/50           240,000        166,604
Petronas Capital      
144A 2.48% 1/28/32 #          200,000        165,821
144A 3.50% 4/21/30 #          440,000        402,410
PTTEP Treasury Center 144A 2.587% 6/10/27 #          695,000        618,039
Rio Oil Finance Trust Series 2014-1 9.25% 7/6/24            64,357         65,327
SA Global Sukuk 144A 2.694% 6/17/31 #          425,000        364,053
Sabine Pass Liquefaction 5.75% 5/15/24         5,501,000      5,505,306
Santos Finance 144A 3.649% 4/29/31 #        1,700,000      1,352,856
Saudi Arabian Oil      
144A 3.50% 11/24/70 #          220,000        150,265
144A 4.25% 4/16/39 #          430,000        385,861
Southwestern Energy 7.75% 10/1/27         2,050,000      2,092,539
Sweihan PV Power PJSC 144A 3.625% 1/31/49 #          427,080        344,380
Targa Resources 4.20% 2/1/33           300,000        258,963
Targa Resources Partners 5.00% 1/15/28         2,055,000      1,963,735
Tengizchevroil Finance Co. International 144A 2.625% 8/15/25 #          284,000        244,172
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Energy (continued)
Tennessee Gas Pipeline 144A 2.90% 3/1/30 #        6,275,000 $    5,269,756
Thaioil Treasury Center 144A 2.50% 6/18/30 #          410,000        321,240
Transportadora de Gas del Sur 144A 6.75% 5/2/25 #          370,000        343,428
Tullow Oil 144A 10.25% 5/15/26 #          410,000        329,566
UEP Penonome II 144A 6.50% 10/1/38 #          300,065        222,424
Uzbekneftegaz 144A 4.75% 11/16/28 #          200,000        161,088
Valero Energy 3.65% 12/1/51         3,193,000      2,268,865
Woodside Finance 144A 3.70% 9/15/26 #          400,000        374,578
YPF 144A 6.95% 7/21/27 #          510,000       362,100
     65,081,016
Finance Companies — 1.92%
AerCap Ireland Capital
DAC
     
1.65% 10/29/24           500,000        461,536
2.45% 10/29/26         1,445,000      1,265,441
3.00% 10/29/28         3,660,000      3,072,883
3.50% 1/15/25           300,000        285,943
4.45% 10/1/25         1,200,000      1,154,782
4.45% 4/3/26           150,000        143,343
4.50% 9/15/23           460,000        457,108
6.50% 7/15/25         1,350,000      1,369,203
Agile Group Holdings 5.50% 5/17/26           345,000        158,214
Air Lease      
2.875% 1/15/26         2,050,000      1,899,024
2.875% 1/15/32         2,380,000      1,896,786
3.00% 2/1/30         7,215,000      6,032,635
3.375% 7/1/25           670,000        634,320
4.125% 12/15/26 μ, ψ          715,000        491,563
4.25% 2/1/24           900,000        884,875
4.625% 10/1/28         2,115,000      1,982,332
5.85% 12/15/27           735,000        735,466
Aircastle 4.125% 5/1/24         2,500,000      2,417,900
 
NQ-OPTFI [12/22] 2/23 (2747704)    19

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Finance Companies (continued)
Aviation Capital Group      
144A 3.50% 11/1/27 #        3,225,000 $    2,821,910
144A 3.875% 5/1/23 #        1,000,000        991,999
Avolon Holdings Funding 144A 2.528% 11/18/27 #          116,000         92,889
China Evergrande Group 10.00% 4/11/23           550,000         39,490
CIFI Holdings Group      
5.25% 5/13/26           250,000         66,077
6.45% 11/7/24           430,000        115,119
Country Garden
Holdings
     
4.20% 2/6/26           254,000        156,037
7.25% 4/8/26           285,000        181,933
DAE Funding      
144A 1.55% 8/1/24 #          200,000        185,982
144A 1.625% 2/15/24 #        1,500,000      1,424,602
3.375% 3/20/28         2,700,000      2,400,543
GE Capital UK Funding Unlimited 5.875% 1/18/33  GBP        300,000        369,093
Goodman HK Finance 4.375% 6/19/24         1,095,000      1,070,830
Huarong Finance 2019 3.875% 11/13/29           550,000        435,173
Indigo Group 1.625% 4/19/28  EUR      1,700,000      1,575,780
Jyske Realkredit 1.50% 10/1/53  DKK              1              0
KeyCorp 4.789% 6/1/33 μ          617,000        584,372
Logicor Financing 3.25% 11/13/28  EUR      3,400,000      3,070,711
MAF Global Securities 7.875% 6/30/27 μ, ψ          215,000        217,825
MDGH GMTN RSC 144A 5.50% 4/28/33 #          310,000        328,437
OneMain Finance 6.125% 3/15/24         1,500,000      1,454,250
Owl Rock Capital 2.875% 6/11/28           500,000        393,379
Realkredit Danmark      
1.00% 10/1/50  DKK              1              0
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Finance Companies (continued)
Realkredit Danmark      
1.00% 10/1/53  DKK              1 $            0
1.50% 10/1/53  DKK              1              0
2.00% 10/1/53  DKK              1              0
Samhallsbyggnadsbolaget i Norden 1.125% 9/4/26  EUR        900,000        718,315
Sirius Real Estate 1.125% 6/22/26  EUR      2,400,000     2,010,136
     46,048,236
Industrials — 0.15%
Burlington Northern Santa Fe 2.875% 6/15/52         1,615,000      1,084,457
Cemex 144A 7.375% 6/5/27 #          350,000        359,758
Holcim Finance
Luxembourg
     
0.50% 4/23/31  EUR      1,100,000        879,131
0.625% 4/6/30  EUR      1,000,000        832,433
Inversiones La Construccion 144A 4.75% 2/7/32 #          395,000        322,309
West China Cement 4.95% 7/8/26           215,000       182,750
      3,660,838
Insurance — 0.85%
AIA Group      
144A 3.375% 4/7/30 #          375,000        330,351
144A 3.90% 4/6/28 #        1,000,000        940,857
Aon      
2.90% 8/23/51         4,930,000      3,157,302
5.00% 9/12/32         1,005,000        996,961
Athene Holding      
3.45% 5/15/52         2,510,000      1,550,423
3.95% 5/25/51         1,120,000        760,262
Athora Netherlands 2.375% 5/17/24  EUR      2,100,000      2,174,784
Berkshire Hathaway Finance 3.85% 3/15/52         3,595,000      2,884,510
Brighthouse Financial      
3.85% 12/22/51         2,970,000      1,885,902
4.70% 6/22/47         1,035,000        761,116
5.625% 5/15/30           850,000        810,410
Fairfax Financial Holdings 4.625% 4/29/30         1,000,000        909,528
 
20    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Insurance (continued)
MetLife 3.85% 9/15/25 μ, ψ        1,520,000 $    1,415,500
Prudential Financial 3.70% 3/13/51         1,660,000      1,275,027
Sagicor Financial 144A 5.30% 5/13/28 #          530,000       497,283
     20,350,216
Real Estate Investment Trusts — 1.01%
American Homes 4 Rent 3.625% 4/15/32         1,685,000      1,421,867
American Tower      
2.30% 9/15/31         1,600,000      1,247,737
3.00% 6/15/23           600,000        593,725
3.375% 5/15/24           500,000        486,815
3.65% 3/15/27           300,000        280,641
American Tower Trust #1 Series 13 2A 144A 3.07% 3/15/48 #        1,285,000      1,277,806
CIBANCO Institucion de Banca Multiple Trust 144A 4.375% 7/22/31 #          405,000        303,409
Cromwell Ereit Lux Finco 2.125% 11/19/25  EUR        600,000        519,319
Crown Castle      
1.05% 7/15/26         1,870,000      1,617,969
2.10% 4/1/31         3,573,000      2,824,652
Digital Realty Trust      
4.45% 7/15/28           770,000        730,459
5.55% 1/15/28         1,345,000      1,356,314
EPR Properties 4.50% 6/1/27         1,700,000      1,490,396
GLP Capital 4.00% 1/15/30         2,600,000      2,281,732
Iron Mountain 144A 5.25% 7/15/30 #          966,000        841,632
Iron Mountain Information Management Services 144A 5.00% 7/15/32 #        3,080,000      2,563,008
MPT Operating Partnership 3.692% 6/5/28  GBP      1,600,000      1,420,000
Trust Fibra Uno 144A 4.869% 1/15/30 #          475,000        408,749
VICI Properties      
4.75% 2/15/28           100,000         95,054
4.95% 2/15/30         2,440,000      2,325,972
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Real Estate Investment Trusts (continued)
VICI Properties      
144A 5.75% 2/1/27 #          145,000 $      141,529
     24,228,785
Technology — 1.27%
Autodesk 2.40% 12/15/31         2,390,000      1,915,397
Broadcom      
144A 3.137% 11/15/35 #        2,789,000      2,059,180
144A 3.419% 4/15/33 #        1,600,000      1,287,178
144A 3.469% 4/15/34 #        6,257,000      5,009,989
144A 4.926% 5/15/37 #          115,000        100,735
Broadridge Financial Solutions 2.60% 5/1/31         2,698,000      2,203,296
CA Magnum Holdings 144A 5.375% 10/31/26 #          418,000        381,938
CDW      
2.67% 12/1/26           465,000        413,707
3.276% 12/1/28         4,143,000      3,554,839
Entegris Escrow 144A 4.75% 4/15/29 #        1,230,000      1,124,161
Fiserv 3.50% 7/1/29         3,500,000      3,160,692
Lenovo Group 144A 6.536% 7/27/32 #          445,000        431,468
NXP      
3.125% 2/15/42           925,000        630,408
3.25% 5/11/41         1,740,000      1,220,455
3.875% 6/18/26         3,250,000      3,091,502
5.55% 12/1/28           440,000        440,358
Oracle      
5.80% 11/10/25           285,000        291,697
6.15% 11/9/29           610,000        634,603
SK Hynix      
144A 1.50% 1/19/26 #          365,000        316,479
144A 2.375% 1/19/31 #          370,000        271,635
TD SYNNEX      
2.375% 8/9/28           800,000        646,944
2.65% 8/9/31         1,200,000        912,268
TSMC Global 144A 4.625% 7/22/32 #          535,000       527,487
     30,626,416
 
NQ-OPTFI [12/22] 2/23 (2747704)    21

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Transportation — 1.41%
Air Canada 144A 3.875% 8/15/26 #          300,000 $      266,230
American Airlines 144A 5.50% 4/20/26 #          500,000        481,701
American Airlines 2015-1 Class A Pass Through Trust 3.375% 11/1/28 ♦        1,126,438        939,127
American Airlines 2016-1 Class AA Pass Through Trust 3.575% 7/15/29 ♦          500,066        446,373
American Airlines 2016-3 Class AA Pass Through Trust 3.00% 4/15/30 ♦          938,797        815,485
American Airlines 2019-1 Class AA Pass Through Trust 3.15% 8/15/33 ♦          172,886        143,073
American Airlines 2021-1 Class A Pass Through Trust 2.875% 1/11/36 ♦          100,000         80,473
Azul Investments      
144A 5.875% 10/26/24 #          430,000        346,650
144A 7.25% 6/15/26 #          400,000        245,175
British Airways 2018-1 Class AA Pass Through Trust 144A 3.80% 3/20/33 #, ♦        1,079,092        972,431
British Airways 2019-1 Class AA Pass Through Trust 144A 3.30% 6/15/34 #, ♦          267,173        226,683
Delta Air Lines      
144A 7.00% 5/1/25 #        5,349,000      5,471,216
7.375% 1/15/26         1,858,000      1,901,421
ERAC USA Finance 144A 2.70% 11/1/23 #          300,000        293,844
Gol Finance 144A 8.00% 6/30/26 #          410,000        244,285
Grupo Aeromexico 144A 8.50% 3/17/27 #        4,615,000      4,081,929
Kansas City Southern 3.00% 5/15/23           500,000        495,668
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Transportation (continued)
Lima Metro Line 2 Finance 144A 4.35% 4/5/36 #          643,992 $      573,544
Mileage Plus Holdings 144A 6.50% 6/20/27 #        4,500,290      4,484,098
Misc Capital Two Labuan 144A 3.75% 4/6/27 #          515,000        467,342
Penske Truck Leasing      
144A 3.95% 3/10/25 #        1,000,000        964,076
144A 4.45% 1/29/26 #        2,100,000      2,023,655
United Airlines      
144A 4.375% 4/15/26 #        2,005,000      1,861,895
144A 4.625% 4/15/29 #        4,961,000      4,328,228
United Airlines 2020-1 Class A Pass Through Trust 5.875% 4/15/29 ♦        1,501,728      1,480,623
US Airways 2012-2 Class A Pass Through Trust 4.625% 12/3/26 ♦          300,554        273,760
US Airways 2013-A Class A Pass Through Trust 3.95% 5/15/27 ♦           44,383        40,314
     33,949,299
Utilities — 3.39%
Abu Dhabi National Energy PJSC 144A 2.00% 4/29/28 #          425,000        378,377
AES Andes 144A 7.125% 3/26/79 #, μ          300,000        285,932
Alfa Desarrollo 144A 4.55% 9/27/51 #          498,177        379,435
American Water Capital 4.45% 6/1/32         4,035,000      3,872,516
Appalachian Power 4.50% 8/1/32         3,500,000      3,273,747
Atmos Energy      
2.85% 2/15/52           975,000        635,417
5.75% 10/15/52         1,745,000      1,832,481
Baltimore Gas and Electric 4.55% 6/1/52         1,395,000      1,239,906
 
22    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Utilities (continued)
Berkshire Hathaway Energy 2.85% 5/15/51         4,385,000 $    2,891,059
Boston Gas 144A 3.757% 3/16/32 #          500,000        436,660
Calpine      
144A 4.50% 2/15/28 #          453,000        405,065
144A 5.00% 2/1/31 #        1,535,000      1,290,181
144A 5.125% 3/15/28 #          454,000        406,025
Cikarang Listrindo 144A 4.95% 9/14/26 #          540,000        505,210
Consorcio Transmantaro 144A 5.20% 4/11/38 #          480,000        433,294
Duke Energy 4.875% 9/16/24 μ, ψ        1,630,000      1,491,450
Duke Energy Carolinas 3.95% 11/15/28         2,215,000      2,129,831
Duke Energy Indiana 3.25% 10/1/49         1,265,000        883,847
Enel Finance America 144A 2.875% 7/12/41 #        2,085,000      1,258,464
ENN Energy Holdings 144A 2.625% 9/17/30 #          605,000        491,067
Entergy Arkansas 4.20% 4/1/49           870,000        716,431
Entergy Louisiana 4.95% 1/15/45           235,000        209,458
Entergy Mississippi 3.85% 6/1/49         1,465,000      1,125,667
Entergy Texas 3.55% 9/30/49           700,000        505,595
Essential Utilities      
2.704% 4/15/30           695,000        584,484
3.351% 4/15/50           675,000        463,979
Evergy Kansas Central 3.45% 4/15/50         1,185,000        863,219
FirstEnergy Transmission 144A 4.55% 4/1/49 #            5,000          4,069
Georgia Power 4.70% 5/15/32         3,200,000      3,094,608
Greenko Power II 144A 4.30% 12/13/28 #          448,607        376,752
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Utilities (continued)
Indianapolis Power & Light 144A 5.65% 12/1/32 #        1,090,000 $    1,121,368
Israel Electric 144A 3.75% 2/22/32 #          390,000        342,755
JSW Hydro Energy 144A 4.125% 5/18/31 #          292,050        243,846
Louisville Gas and Electric 4.25% 4/1/49         2,685,000      2,241,744
Minejesa Capital 144A 5.625% 8/10/37 #          400,000        312,122
Mong Duong Finance Holdings 144A 5.125% 5/7/29 #          500,000        416,914
Nevada Power 5.90% 5/1/53         1,670,000      1,790,619
NextEra Energy
Capital Holdings
     
0.65% 3/1/23         2,800,000      2,781,006
3.00% 1/15/52         1,105,000        726,424
5.00% 7/15/32         2,625,000      2,582,501
Oglethorpe Power 3.75% 8/1/50         1,620,000      1,169,299
Oryx Funding 144A 5.80% 2/3/31 #          420,000        401,748
Pacific Gas and
Electric
     
2.10% 8/1/27         1,400,000      1,197,765
3.00% 6/15/28           800,000        693,143
3.25% 6/1/31           420,000        342,408
3.30% 3/15/27           700,000        623,699
3.30% 8/1/40         7,168,000      4,877,668
3.50% 6/15/25           400,000        377,762
3.50% 8/1/50         4,510,000      2,818,359
4.20% 3/1/29         3,200,000      2,863,865
4.40% 3/1/32         1,300,000      1,138,113
4.50% 7/1/40         1,100,000        863,734
4.95% 7/1/50           516,000        402,030
PacifiCorp 5.35% 12/1/53           600,000        597,545
Pedernales Electric Cooperative 144A 6.202% 11/15/32 #          620,000        621,754
Perusahaan Listrik
Negara
     
144A 4.125% 5/15/27 #          300,000        288,689
144A 5.25% 5/15/47 #          185,000        156,422
PG&E 5.25% 7/1/30         1,625,000      1,481,244
 
NQ-OPTFI [12/22] 2/23 (2747704)    23

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Corporate Bonds (continued)
Utilities (continued)
Sempra Energy 4.875% 10/15/25 μ, ψ          575,000 $      533,129
Sociedad de Transmision Austral 144A 4.00% 1/27/32 #          420,000        364,526
Southern 5.70% 10/15/32           900,000        923,430
Southern California
Edison
     
3.45% 2/1/52         3,037,000      2,175,133
3.65% 2/1/50         1,525,000      1,120,842
4.00% 4/1/47           880,000        691,767
4.875% 3/1/49         2,330,000      2,060,786
Southern California Gas 2.95% 4/15/27         2,600,000      2,401,534
Southern Co. Gas Capital 5.15% 9/15/32         1,901,000      1,871,570
System Energy Resources 2.14% 12/9/25           800,000        732,488
Vistra Operations 144A 5.125% 5/13/25 #        2,620,000     2,566,775
     81,380,752
Total Corporate Bonds
(cost $891,063,424)
  778,696,721
 
Municipal Bonds — 0.73%
American Municipal
Power, Ohio
     
(Combined Hydroelectric Projects - Build America Bonds) Series B  8.084%  2/15/50        1,500,000      1,934,250
Chicago, Illinois Transit
Authority Sales Tax Receipts Revenue
     
(Pension Funding) Series A 6.899%  12/1/40        1,750,000      1,942,727
(Retiree Health Care Funding) Series B  6.899%  12/1/40        1,750,000      1,942,728
Commonwealth of
Puerto Rico
     
(Restructured)      
Series A-1 2.993% 7/1/24 ^          162,917        151,060
    Principal
amount°
Value (US $)
Municipal Bonds (continued)
Commonwealth of
Puerto Rico
     
(Restructured)
Series A-1 4.00% 7/1/35          355,609 $      300,120
Series A-1 4.00% 7/1/37          377,735        309,977
GDB Debt Recovery
Authority of Puerto Rico
     
(Taxable)  7.50%  8/20/40        3,711,688      3,108,539
Golden State,
California Tobacco Securitization
     
(Senior) Series A1 2.587%  6/1/29        1,700,000      1,424,957
Municipal Electric
Authority of Georgia
     
(Build America Bonds Plant Vogtle Units 3 & 4 Project)  6.655%  4/1/57        1,728,000      1,869,972
New Jersey
Transportation Trust Fund Authority
     
(Build America Bonds) Series C 5.754%  12/15/28        1,590,000      1,603,531
New York City, New
York Transitional Finance Authority Future Tax Secured Revenue
     
(Build America Bonds) Subordinate Series A-1 5.508%  8/1/37          700,000        719,733
New York State Urban
Development
     
(Build America Bonds) Series E  5.77%  3/15/39          800,000        822,400
Pennsylvania Higher
Education Assistance Agency Revenue
     
(Student Loans) Series 2006-2 A-3 4.488% (LIBOR03M + 0.13%) 10/25/36 •          242,383        238,770
South Carolina Public
Service Authority
     
(Santee Cooper) Series D 4.77%  12/1/45          145,000        120,289
 
24    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Municipal Bonds (continued)
West Virginia Tobacco
Settlement Finance Authority
     
(Class 1 Senior Current Interest Bonds)      
Series A 1.82% 6/1/26          250,000 $      221,647
Series A 2.351% 6/1/28          300,000        254,586
Series A 2.551% 6/1/29          300,000        250,041
Series A 2.951% 6/1/31          500,000       405,170
Total Municipal Bonds
(cost $19,892,170)
   17,620,497
 
Non-Agency Asset-Backed Securities — 2.12%
ABFC Trust
Series 2006-HE1 A2D 4.609% (LIBOR01M + 0.22%, Floor 0.22%) 1/25/37 •
         256,198        150,423
Argent Securities Trust      
Series 2006-M1 A2C 4.689% (LIBOR01M + 0.30%, Floor 0.30%) 7/25/36 •        1,098,817        293,983
Series 2006-W4 A2C 4.709% (LIBOR01M + 0.32%, Floor 0.32%) 5/25/36 •          575,501        141,605
Bear Stearns Asset-Backed Securities I Trust
Series 2005-FR1 M2 5.394% (LIBOR01M + 1.01%, Floor 1.01%) 6/25/35 •
       1,033,515        982,154
Bear Stearns Asset-Backed Securities Trust
Series 2007-SD1 22A1 3.847% 10/25/36 •
          99,753         59,179
Centex Home Equity Loan Trust
Series 2002-A AF6 5.54% 1/25/32
             196            191
    Principal
amount°
Value (US $)
Non-Agency Asset-Backed Securities (continued)
CIT Mortgage Loan Trust
Series 2007-1 1M1 144A 5.889% (LIBOR01M + 1.50%, Floor 1.50%) 10/25/37 #, •
       3,600,000 $    3,411,823
Citicorp Residential Mortgage Trust
Series 2006-3 A5 4.71% 11/25/36 ~
         221,712        211,440
Countrywide Asset-Backed Certificates Trust      
Series 2004-3 2A 4.789% (LIBOR01M + 0.40%, Floor 0.40%) 8/25/34 •           27,761         25,419
Series 2005-3 MV7 5.034% (LIBOR01M + 1.95%, Floor 1.95%) 8/25/35 •        4,200,000      3,758,230
Series 2006-1 AF6 4.486% 7/25/36 •           29,597         27,750
Series 2006-11 1AF6 6.15% 9/25/46 •           34,004         30,727
Series 2006-17 2A2 4.689% (LIBOR01M + 0.30%, Floor 0.30%) 3/25/47 •          585,549        570,147
Series 2006-26 2A4 4.609% (LIBOR01M + 0.22%, Floor 0.22%) 6/25/37 •        1,021,081        975,620
Series 2007-6 2A4 4.699% (LIBOR01M + 0.31%, Floor 0.31%) 9/25/37 •          932,323        799,986
DataBank Issuer
Series 2021-1A A2 144A 2.06% 2/27/51 #
       1,600,000      1,385,839
Diamond Infrastructure Funding
Series 2021-1A A 144A 1.76% 4/15/49 #
       4,700,000      3,849,708
Domino's Pizza Master Issuer
Series 2021-1A A2I 144A 2.662% 4/25/51 #
       7,289,000      6,062,130
 
NQ-OPTFI [12/22] 2/23 (2747704)    25

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Non-Agency Asset-Backed Securities (continued)
EquiFirst Mortgage Loan Trust
Series 2004-2 M7 7.389% (LIBOR01M + 3.00%, Floor 3.00%) 10/25/34 •
         662,361 $      621,678
First Franklin Mortgage Loan Trust
Series 2006-FF5 2A3 4.709% (LIBOR01M + 0.32%, Floor 0.32%) 4/25/36 •
         667,317        642,489
Fremont Home Loan Trust
Series 2004-B M1 5.259% (LIBOR01M + 0.87%, Floor 0.87%) 5/25/34 •
       2,027,196      1,858,602
GE-WMC Mortgage Securities Trust
Series 2006-1 A2B 4.689% (LIBOR01M + 0.30%, Floor 0.30%) 8/25/36 •
       1,661,684        733,082
GSAMP Trust      
Series 2006-FM3 A2D 4.619% (LIBOR01M + 0.23%, Floor 0.23%) 11/25/36 •          779,092        371,112
Series 2007-SEA1 A 144A 4.689% (LIBOR01M + 0.30%, Floor 0.30%) 12/25/36 #, •          455,576        427,615
Hardee's Funding
Series 2018-1A A2II 144A 4.959% 6/20/48 #
         478,750        449,615
Home Equity Mortgage Loan Asset-Backed Trust
Series 2007-A 2A3 4.629% (LIBOR01M + 0.24%, Floor 0.24%) 4/25/37 •
       1,094,421        715,883
HSI Asset Securitization Trust
Series 2006-HE1 2A1 4.489% (LIBOR01M + 0.10%, Floor 0.10%) 10/25/36 •
          21,603          8,627
JPMorgan Chase Bank
Series 2021-3 B 144A 0.76% 2/26/29 #
         674,904        636,114
    Principal
amount°
Value (US $)
Non-Agency Asset-Backed Securities (continued)
JPMorgan Mortgage Acquisition Trust
Series 2006-CW2 AV5 4.629% (LIBOR01M + 0.24%, Floor 0.24%) 8/25/36 •
         201,285 $      196,061
Lendingpoint Asset Securitization Trust
Series 2021-B A 144A 1.11% 2/15/29 #
         192,455        191,113
Long Beach Mortgage
Loan Trust
     
Series 2006-1 2A4 4.989% (LIBOR01M + 0.60%, Floor 0.60%) 2/25/36 •        2,409,565      1,968,019
Series 2006-7 1A 4.699% (LIBOR01M + 0.31%, Floor 0.31%) 8/25/36 •        2,290,909      1,219,728
Morgan Stanley ABS
Capital I Trust
     
Series 2007-HE1 A2C 4.539% (LIBOR01M + 0.15%, Floor 0.15%) 11/25/36 •        3,681,359      2,194,462
Series 2007-HE5 A2D 4.729% (LIBOR01M + 0.34%, Floor 0.34%) 3/25/37 •        2,730,509      1,212,306
New Century Home Equity Loan Trust
Series 2005-1 M2 5.109% (LIBOR01M + 0.72%, Cap 12.50%, Floor 0.72%) 3/25/35 •
         233,599        222,350
Option One Mortgage
Loan Trust
     
Series 2005-1 M1 5.169% (LIBOR01M + 0.78%, Floor 0.78%) 2/25/35 •        1,064,217      1,001,044
Series 2007-4 2A4 4.699% (LIBOR01M + 0.31%, Floor 0.31%) 4/25/37 •        4,784,203      2,784,206
PFS Financing
Series 2021-A A 144A 0.71% 4/15/26 #
       1,800,000      1,693,674
 
26    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Non-Agency Asset-Backed Securities (continued)
RAAC Trust
Series 2005-SP2 2A 4.989% (LIBOR01M + 0.60%, Cap 14.00%, Floor 0.60%) 6/25/44 •
         180,306 $      147,375
Sofi Professional Loan Program
Series 2016-F A2 144A 3.02% 2/25/40 #
          93,511         89,174
Soundview Home Loan Trust
Series 2006-OPT1 2A4 4.929% (LIBOR01M + 0.54%, Floor 0.54%) 3/25/36 •
         124,280        121,480
Structured Asset Investment Loan Trust
Series 2003-BC2 M1 5.769% (LIBOR01M + 1.38%, Floor 1.38%) 4/25/33 •
          15,778         15,183
Structured Asset
Securities Mortgage Loan Trust
     
Series 2006-BC1 A6 4.659% (LIBOR01M + 0.27%, Floor 0.27%) 3/25/36 •          981,442        893,565
Series 2006-BC2 A1 4.544% (LIBOR01M + 0.16%, Floor 0.16%) 9/25/36 •        3,038,875      1,898,129
Towd Point Mortgage
Trust
     
Series 2017-1 A1 144A 2.75% 10/25/56 #, •          114,699        112,770
Series 2017-2 A1 144A 2.75% 4/25/57 #, •           14,088         13,906
Series 2017-4 M1 144A 3.25% 6/25/57 #, •          615,000        523,395
Series 2018-1 A1 144A 3.00% 1/25/58 #, •          149,864        144,501
Series 2019-4 A1 144A 2.90% 10/25/59 #, •        5,483,461     5,091,615
Total Non-Agency Asset-Backed Securities
(cost $59,039,479)
   50,935,227
 
    Principal
amount°
Value (US $)
Non-Agency Collateralized Mortgage Obligations — 1.59%
Alternative Loan Trust Resecuritization
Series 2008-2R 3A1 6.00% 8/25/37 •
         808,697 $      416,322
ARM Trust      
Series 2005-10 3A31 3.208% 1/25/36 •           35,163         32,056
Series 2006-2 1A4 3.228% 5/25/36 •          331,359        287,364
Banc of America
Funding Trust
     
Series 2005-E 7A1 3.478% (Federal Reserve US 12 mo. Cumulative Avg 1 yr. CMT + 1.43%, Floor 1.43%) 6/20/35 •           65,819         52,235
Series 2006-I 1A1 3.604% 12/20/36 •           77,293         74,186
Banc of America Mortgage Trust
Series 2003-D 2A1 4.014% 5/25/33 •
          32,943         30,317
Bear Stearns ARM Trust
Series 2003-5 2A1 3.399% 8/25/33 •
          14,205         13,145
Chase Mortgage Finance Trust
Series 2005-A1 3A1 3.941% 12/25/35 •
          40,537         34,069
CHL Mortgage Pass Through Trust
Series 2007-4 1A1 6.00% 5/25/37 ♦
         664,165        315,154
Connecticut Avenue
Securities Trust
     
Series 2018-R07 1M2 144A 6.789% (LIBOR01M + 2.40%) 4/25/31 #, •           64,666         64,505
Series 2019-R01 2M2 144A 6.839% (LIBOR01M + 2.45%) 7/25/31 #, •           46,242         46,125
Series 2019-R02 1M2 144A 6.689% (LIBOR01M + 2.30%, Floor 2.30%) 8/25/31 #, •          117,188        117,042
Series 2019-R07 1M2 144A 6.489% (LIBOR01M + 2.10%) 10/25/39 #, •          200,646        200,145
 
NQ-OPTFI [12/22] 2/23 (2747704)    27

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Non-Agency Collateralized Mortgage Obligations (continued)
Connecticut Avenue
Securities Trust
     
Series 2020-R01 1M2 144A 6.439% (LIBOR01M + 2.05%, Floor 2.05%) 1/25/40 #, •          725,771 $      720,766
Series 2022-R01 1M2 144A 5.828% (SOFR + 1.90%) 12/25/41 #, •        1,500,000      1,424,450
Series 2022-R02 2M2 144A 6.928% (SOFR + 3.00%) 1/25/42 #, •          900,000        848,009
CSMC Mortgage-Backed Trust      
Series 2005-1R 2A5 144A 5.75% 12/26/35 #          501,945        359,810
Series 2007-1 5A14 6.00% 2/25/37          145,153         86,745
Series 2007-3 4A12 2.361% (6.75% minus LIBOR01M, Cap 6.75%) 4/25/37 Σ, •           73,869          9,879
Series 2007-3 4A15 5.50% 4/25/37           32,800         26,559
Series 2007-3 4A6 4.639% (LIBOR01M + 0.25%, Cap 7.00%, Floor 0.25%) 4/25/37 •           73,869         59,086
Flagstar Mortgage Trust
Series 2021-2 A6 144A 2.50% 4/25/51 #, •
         813,033        697,081
GMACM Mortgage Loan Trust
Series 2006-J1 A1 5.75% 4/25/36
          16,265         13,723
GS Mortgage-Backed
Securities Trust
     
Series 2021-PJ4 A8 144A 2.50% 9/25/51 #, •        2,163,425      1,854,883
Series 2021-PJ7 A2 144A 2.50% 1/25/52 #, •        2,241,182      1,798,986
    Principal
amount°
Value (US $)
Non-Agency Collateralized Mortgage Obligations (continued)
GSR Mortgage Loan Trust
Series 2007-AR1 2A1 3.466% 3/25/47 •
         365,977 $      238,142
JPMorgan Alternative Loan Trust
Series 2007-A2 11A1 4.749% (LIBOR01M + 0.36%, Cap 11.50%, Floor 0.36%) 6/25/37 •
       2,937,212      1,605,304
JPMorgan Mortgage
Trust
     
Series 2006-A6 2A4L 3.804% 10/25/36 •          174,910        141,412
Series 2006-A7 2A2 3.848% 1/25/37 •           34,007         26,214
Series 2007-A1 6A1 3.57% 7/25/35 •           41,511         38,690
Series 2014-2 B1 144A 3.412% 6/25/29 #, •           21,186         18,169
Series 2014-2 B2 144A 3.412% 6/25/29 #, •           21,186         18,104
Series 2015-4 B1 144A 3.548% 6/25/45 #, •          465,252        409,172
Series 2015-4 B2 144A 3.548% 6/25/45 #, •          198,849        174,451
Series 2015-5 B2 144A 4.863% 5/25/45 #, •          331,092        313,166
Series 2015-6 B1 144A 3.535% 10/25/45 #, •          186,678        170,351
Series 2015-6 B2 144A 3.535% 10/25/45 #, •          181,632        165,527
Series 2016-4 B1 144A 3.807% 10/25/46 #, •          177,954        156,748
Series 2016-4 B2 144A 3.807% 10/25/46 #, •          324,436        282,776
Series 2017-1 B3 144A 3.449% 1/25/47 #, •          833,406        687,119
Series 2017-2 A3 144A 3.50% 5/25/47 #, •           51,776         44,435
 
28    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Non-Agency Collateralized Mortgage Obligations (continued)
JPMorgan Mortgage
Trust
     
Series 2020-2 A3 144A 3.50% 7/25/50 #, •          150,903 $      132,580
Series 2020-5 A3 144A 3.00% 12/25/50 #, •          856,965        713,582
Series 2020-7 A3 144A 3.00% 1/25/51 #, •          463,681        381,614
Series 2021-1 A3 144A 2.50% 6/25/51 #, •          719,292        578,271
Series 2021-10 A3 144A 2.50% 12/25/51 #, •        1,510,140      1,212,182
Series 2021-13 B1 144A 3.143% 4/25/52 #, •        1,941,268      1,495,924
Lehman Mortgage Trust
Series 2007-10 2A2 6.50% 1/25/38
       1,178,012        388,923
Ludgate Funding      
Series 2006-1X A2A 3.869% (BP0003M + 0.19%) 12/1/60 • GBP      1,001,047      1,135,738
Series 2008-W1X A1 3.93% (BP0003M + 0.60%) 1/1/61 • GBP        432,977        498,889
Mansard Mortgages
Series 2007-1X A2 1.945% (SONIA + 0.299%) 4/15/47 •
GBP        474,097        536,796
MASTR Alternative
Loan Trust
     
Series 2004-3 8A1 7.00% 4/25/34            1,103          1,107
Series 2004-5 6A1 7.00% 6/25/34           16,542         16,533
MASTR ARM Trust
Series 2004-4 4A1 3.18% 5/25/34 •
          33,504         31,127
Merrill Lynch Mortgage Investors Trust
Series 2004-A1 2A2 3.186% 2/25/34 •
           1,766          1,617
    Principal
amount°
Value (US $)
Non-Agency Collateralized Mortgage Obligations (continued)
Morgan Stanley
Residential Mortgage Loan Trust
     
Series 2020-1 A2A 144A 2.50% 12/25/50 #, •          742,854 $      597,214
Series 2021-1 A2 144A 2.50% 3/25/51 #, •          661,734        531,997
Series 2021-4 A3 144A 2.50% 7/25/51 #, •          756,324        607,098
New Residential
Mortgage Loan Trust
     
Series 2018-RPL1 A1 144A 3.50% 12/25/57 #, •          123,708        116,582
Series 2019-RPL3 A1 144A 2.75% 7/25/59 #, •        3,043,011      2,827,333
RALI Series Trust      
Series 2007-QA5 2A1 6.026% 9/25/37 •        1,969,467      1,427,007
Series 2007-QH8 A 2.644% 10/25/37 •        1,125,507        974,863
RCKT Mortgage Trust      
Series 2021-1 A1 144A 2.50% 3/25/51 #, •          735,189        590,132
Series 2021-6 A1 144A 2.50% 12/25/51 #, •        1,536,317      1,233,194
Reperforming Loan REMIC Trust
Series 2006-R1 AF1 144A 4.729% (LIBOR01M + 0.34%, Cap 9.50%, Floor 0.34%) 1/25/36 #, •
         480,487        454,926
RFMSI Trust
Series 2004-S9 2A1 4.75% 12/25/19
              28             31
Sequoia Mortgage
Trust
     
Series 2004-5 A3 5.747% (LIBOR06M + 0.56%, Cap 11.50%, Floor 0.56%) 6/20/34 •           82,067         74,320
Series 2007-1 4A1 3.182% 9/20/46 •          227,535        156,336
 
NQ-OPTFI [12/22] 2/23 (2747704)    29

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Non-Agency Collateralized Mortgage Obligations (continued)
Sequoia Mortgage
Trust
     
Series 2015-1 B2 144A 3.913% 1/25/45 #, •          124,778 $      115,157
Series 2017-5 B2 144A 3.794% 8/25/47 #, •        2,835,666      2,414,901
Series 2020-4 A2 144A 2.50% 11/25/50 #, •          586,273        472,064
Structured ARM Loan Trust
Series 2006-1 7A4 2.758% 2/25/36 •
          56,737         51,006
Structured Asset Mortgage Investments II Trust
Series 2005-AR5 A2 4.839% (LIBOR01M + 0.50%, Cap 11.00%, Floor 0.50%) 7/19/35 •
         116,860        107,995
Trinity Square
Series 2021-1A A 144A 3.729% (SONIA + 0.85%) 7/15/59 #, •
GBP      3,024,197      3,617,338
WaMu Mortgage Pass
Through Certificates Trust
     
Series 2005-AR16 1A3 3.836% 12/25/35 ♦, •          167,754        150,266
Series 2007-HY1 3A3 3.211% 2/25/37 ♦, •          112,869        100,868
Series 2007-HY7 4A1 3.864% 7/25/37 ♦, •          225,152        205,727
Wells Fargo Mortgage-Backed Securities Trust      
Series 2006-AR11 A6 4.046% 8/25/36 •          108,156         98,815
Series 2020-1 A1 144A 3.00% 12/25/49 #, •          138,869       114,482
Total Non-Agency Collateralized Mortgage Obligations
(cost $46,819,214)
   38,236,957
 
    Principal
amount°
Value (US $)
Non-Agency Commercial Mortgage-Backed Securities — 4.75%
BANK      
Series 2017-BNK5 B 3.896% 6/15/60 •          605,000 $      526,657
Series 2017-BNK7 A5 3.435% 9/15/60          710,000        655,618
Series 2019-BN20 A3 3.011% 9/15/62        8,000,000      6,992,035
Series 2019-BN21 A5 2.851% 10/17/52        2,100,000      1,814,752
Series 2022-BNK39 A4 2.928% 2/15/55        2,784,000      2,349,154
Series 2022-BNK39 B 3.239% 2/15/55 •        1,353,000      1,006,926
Series 2022-BNK39 C 3.27% 2/15/55 •          797,000        543,152
Series 2022-BNK40 B 3.394% 3/15/64 •        1,800,000      1,363,168
Series 2022-BNK41 A4 3.79% 4/15/65 •        2,000,000      1,816,748
Benchmark Mortgage
Trust
     
Series 2020-B17 A5 2.289% 3/15/53        3,460,000      2,877,154
Series 2020-B20 A5 2.034% 10/15/53       13,250,000     10,667,036
Series 2020-B21 A5 1.978% 12/17/53        1,300,000      1,036,855
Series 2020-B22 A5 1.973% 1/15/54        2,050,000      1,630,819
Series 2021-B24 A5 2.584% 3/15/54        6,790,000      5,636,850
Series 2021-B29 A5 2.388% 9/15/54        6,000,000      4,850,923
Series 2022-B32 B 3.202% 1/15/55 •        1,800,000      1,310,778
Series 2022-B32 C 3.454% 1/15/55 •        2,200,000      1,496,859
Series 2022-B33 B 3.615% 3/15/55 •          900,000        697,574
Series 2022-B33 C 3.615% 3/15/55 •          900,000        648,822
BMO Mortgage Trust
Series 2022-C1 A5 3.374% 2/17/55 •
         600,000        520,615
Cantor Commercial
Real Estate Lending
     
Series 2019-CF1 A5 3.786% 5/15/52        2,340,000      2,150,599
Series 2019-CF2 A5 2.874% 11/15/52        4,000,000      3,437,840
Series 2019-CF3 A4 3.006% 1/15/53          800,000        681,460
 
30    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Non-Agency Commercial Mortgage-Backed
Securities (continued)
CD Mortgage Trust      
Series 2017-CD6 B 3.911% 11/13/50 •          440,000 $      379,811
Series 2019-CD8 A4 2.912% 8/15/57        8,775,000      7,564,752
CFCRE Commercial Mortgage Trust
Series 2016-C7 A3 3.838% 12/10/54
       3,100,000      2,887,700
Citigroup Commercial
Mortgage Trust
     
Series 2014-GC25 A4 3.635% 10/10/47          785,000        755,009
Series 2015-GC27 A5 3.137% 2/10/48        1,400,000      1,330,761
Series 2016-P3 A4 3.329% 4/15/49        1,305,000      1,215,007
Series 2017-C4 A4 3.471% 10/12/50          635,000        586,029
COMM Mortgage Trust      
Series 2014-CR20 AM 3.938% 11/10/47        2,225,000      2,099,793
Series 2015-3BP A 144A 3.178% 2/10/35 #          605,000        559,163
Series 2015-CR23 A4 3.497% 5/10/48          780,000        741,108
Series 2016-CR28 A4 3.762% 2/10/49        2,330,000      2,213,676
DB-JPM Mortgage Trust
Series 2016-C1 A4 3.276% 5/10/49
         900,000        839,961
GS Mortgage
Securities Trust
     
Series 2017-GS5 A4 3.674% 3/10/50        1,280,000      1,192,618
Series 2017-GS6 A3 3.433% 5/10/50        1,935,000      1,787,979
Series 2019-GC39 A4 3.567% 5/10/52        1,250,000      1,122,583
Series 2019-GC42 A4 3.00% 9/1/52        5,000,000      4,295,935
Series 2020-GC47 A5 2.377% 5/12/53        3,716,000      3,067,792
JPM-BB Commercial Mortgage Securities Trust
Series 2015-C31 A3 3.801% 8/15/48
       7,784,753      7,402,029
    Principal
amount°
Value (US $)
Non-Agency Commercial Mortgage-Backed
Securities (continued)
JPM-DB Commercial
Mortgage Securities Trust
     
Series 2016-C2 A4 3.144% 6/15/49        1,640,000 $    1,518,103
Series 2016-C4 A3 3.141% 12/15/49        1,065,000        979,531
Series 2017-C7 A5 3.409% 10/15/50        2,395,000      2,200,230
JPMorgan Chase
Commercial Mortgage Securities Trust
     
Series 2013-LC11 B 3.499% 4/15/46          355,000        347,872
Series 2016-JP2 AS 3.056% 8/15/49        1,250,000      1,115,087
Morgan Stanley Bank
of America Merrill Lynch Trust
     
Series 2015-C26 A5 3.531% 10/15/48          960,000        907,967
Series 2015-C27 ASB 3.557% 12/15/47        1,223,348      1,189,366
Series 2016-C29 A4 3.325% 5/15/49        1,445,000      1,347,045
Morgan Stanley
Capital I Trust
     
Series 2019-L3 A4 3.127% 11/15/52        1,000,000        868,926
Series 2020-HR8 A4 2.041% 7/15/53        4,415,000      3,549,607
UBS-Barclays Commercial Mortgage Trust
Series 2013-C5 B 144A 3.649% 3/10/46 #, •
         480,000        478,261
VMC Finance
Series 2021-FL4 A 144A 5.439% (LIBOR01M + 1.10%, Floor 1.10%) 6/16/36 #, •
       1,139,175      1,093,609
Wells Fargo
Commercial Mortgage Trust
     
Series 2014-LC18 A5 3.405% 12/15/47          275,000        262,395
Series 2015-NXS3 A4 3.617% 9/15/57          510,000        483,346
Series 2016-BNK1 A3 2.652% 8/15/49        1,220,000      1,102,680
 
NQ-OPTFI [12/22] 2/23 (2747704)    31

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Non-Agency Commercial Mortgage-Backed
Securities (continued)
Wells Fargo
Commercial Mortgage Trust
     
Series 2020-C58 A4 2.092% 7/15/53        2,300,000 $    1,835,882
Total Non-Agency Commercial Mortgage-Backed Securities
(cost $134,493,597)
  114,034,007
 
Loan Agreements — 2.27%
Amentum Government Services Holdings Tranche 3 7.558% - 8.764% (SOFR06M + 4.00%) 2/15/29 •        3,452,650      3,370,649
Amynta Agency Borrower Tranche B 9.399% (SOFR01M + 5.00%) 2/28/25 •          610,000        588,650
Applied Systems 9.08% (SOFR03M + 4.50%) 9/18/26 •          826,291        824,226
Applied Systems 2nd Lien 11.33% (SOFR03M + 6.75%) 9/17/27 •        2,058,605      2,053,458
Bausch & Lomb 7.842% (SOFR03M + 3.35%) 5/10/27 •        1,233,800      1,173,652
Berry Global Tranche Z 6.024% (LIBOR01M + 1.75%) 7/1/26 •          608,920        605,149
BW Gas & Convenience Holdings Tranche B 7.884% (LIBOR01M + 3.50%) 3/31/28 •          379,037        365,771
Caesars Resort Collection Tranche B 7.134% (LIBOR01M + 2.75%) 12/23/24 •        1,499,688      1,498,203
Caesars Resort Collection Tranche B-1 7.884% (LIBOR01M + 3.50%) 7/21/25 •          895,127        893,868
Calpine      
6.39% (LIBOR01M + 2.00%) 4/5/26 •          241,250        238,295
6.89% (LIBOR01M + 2.50%) 12/16/27 •          253,648        251,622
    Principal
amount°
Value (US $)
Loan Agreements (continued)
Camelot US Acquisition l 7.384% (LIBOR01M + 3.00%) 10/30/26 •          570,131 $      562,363
Castlelake Aviation One DAC 7.519% (LIBOR03M + 2.75%) 10/22/26 •          684,321        679,433
CenturyLink Tranche B 6.634% (LIBOR01M + 2.25%) 3/15/27 •          974,797        926,666
Charter Communications Operating Tranche B2 6.14% (LIBOR01M + 1.75%) 2/1/27 •          475,033        464,679
Connect US Finco 7.89% (LIBOR01M + 3.50%) 12/11/26 •          631,152        624,742
Core & Main Tranche B-1 6.889% - 7.416% (LIBOR01M + 2.50%) 7/27/28 •          530,206        524,771
Delta Air Lines 7.993% (LIBOR03M + 3.75%) 10/20/27 •          500,000        510,495
Entegris Tranche B 7.524% (SOFR01M + 3.00%) 7/6/29 •        1,295,000      1,292,457
Epicor Software 2nd Lien 12.134% (LIBOR01M + 7.75%) 7/31/28 •          735,000        727,650
Epicor Software Tranche C 7.634% (LIBOR01M + 3.25%) 7/30/27 •          783,960        755,541
Frontier Communications Tranche B 8.50% (LIBOR03M + 3.75%) 5/1/28 •        1,719,375      1,646,302
Hamilton Projects Acquiror 9.23% (LIBOR03M + 4.50%) 6/17/27 •          815,006        803,460
Hexion Holdings 1st Lien 8.934% (SOFR03M + 4.65%) 3/15/29 •        2,303,425      1,985,552
 
32    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Loan Agreements (continued)
Hilton Grand Vacations Borrower 7.384% (LIBOR01M + 3.00%) 8/2/28 •          987,500 $      982,439
Hilton Worldwide Finance Tranche B-2 6.173% (LIBOR01M + 1.75%) 6/22/26 •        1,088,891      1,086,645
HUB International 7.327% (LIBOR03M + 3.00%) 4/25/25 •          352,908        349,673
Informatica 7.187% (LIBOR01M + 2.75%) 10/27/28 •          630,237        620,784
IRB Holding Tranche B 7.317% (SOFR01M + 3.00%) 12/15/27 •        3,542,431      3,439,479
LSF9 Atlantis Holdings Tranche B 11.83% (SOFR03M + 7.25%) 3/31/29 •        2,083,625      2,029,972
Mileage Plus Holdings 9.996% (LIBOR03M + 5.25%) 6/21/27 •          900,000        927,750
MPH Acquisition Holdings 8.985% (LIBOR03M + 4.25%) 9/1/28 •        1,777,500      1,525,502
Organon & Co. 7.75% (LIBOR03M + 3.00%) 6/2/28 •        1,861,292      1,847,332
Peraton Tranche B 1st Lien 8.134% (LIBOR01M + 3.75%) 2/1/28 •        1,017,666        996,223
PG&E Tranche B 7.437% (LIBOR01M + 3.00%) 6/23/25 •        1,425,300      1,416,214
Prestige Brands Tranche B5 6.384% (LIBOR01M + 2.00%) 7/3/28 •            8,778          8,765
RealPage 1st Lien 7.384% (LIBOR01M + 3.00%) 4/24/28 •          987,500        941,581
Russell Investments US Institutional Holdco 7.884% (LIBOR01M + 3.50%) 5/30/25 •              130            126
Ryan Specialty Group Tranche B-1 7.423% (SOFR01M + 3.00%) 9/1/27 •          581,613        578,947
    Principal
amount°
Value (US $)
Loan Agreements (continued)
Sinclair Television Group Tranche B-4 8.173% (SOFR01M + 3.85%) 4/21/29 •        2,164,125 $    2,065,387
Standard Industries 6.425% (LIBOR06M + 2.25%) 9/22/28 •        2,460,703      2,433,704
TK Elevator Midco Tranche B 6.871% (LIBOR06M + 3.50%) 7/30/27 •                9              8
UKG 1st Lien 6.998% (LIBOR03M + 3.25%) 5/4/26 •        1,632,681      1,555,129
Ultimate Software Group 1st Lien 8.134% (LIBOR01M + 3.75%) 5/4/26 •        1,128,001      1,089,024
United Airlines Tranche B 8.108% (LIBOR03M + 3.75%) 4/21/28 •          295,489        292,411
US Foods Tranche B TBD 11/22/28 X        1,322,083      1,318,117
Viasat 8.938% (SOFR01M + 4.614%) 3/2/29 •        2,776,050      2,708,037
Vistra Operations 6.089% - 6.134% (LIBOR01M + 1.75%) 12/31/25 •          508,607        504,937
Zayo Group Holdings 7.384% (LIBOR01M + 3.00%) 3/9/27 •        2,954,377     2,403,303
Total Loan Agreements
(cost $55,993,380)
   54,489,143
 
Sovereign Bonds — 6.58%
Albania — 0.01%
Albania Government International Bond
144A 3.50% 6/16/27 #
EUR        150,000       143,788
        143,788
Angola — 0.02%
Angolan Government
International Bonds
     
144A 8.25% 5/9/28 #          200,000        182,920
8.25% 5/9/28          200,000        182,920
144A 8.75% 4/14/32 #          200,000       173,680
        539,520
 
NQ-OPTFI [12/22] 2/23 (2747704)    33

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Argentina — 0.01%
Argentine Republic Government
International Bonds
     
0.50% 7/9/30 ~          645,050 $      175,576
1.00% 7/9/29           31,833          8,530
1.50% 7/9/35 ~          674,580       172,791
        356,897
Armenia — 0.01%
Republic of Armenia International Bond
144A 3.60% 2/2/31 #
         200,000       159,945
        159,945
Azerbaijan — 0.01%
Republic of Azerbaijan International Bond
144A 3.50% 9/1/32 #
         319,000       266,764
        266,764
Bahrain — 0.01%
Bahrain Government International Bond
144A 7.375% 5/14/30 #
         300,000       305,758
        305,758
Bermuda — 0.03%
Bermuda Government
International Bonds
     
144A 5.00% 7/15/32 #          400,000        398,261
5.00% 7/15/32          255,000       253,892
        652,153
Brazil — 0.03%
Brazilian Government
International Bonds
     
3.875% 6/12/30          532,000        463,151
4.75% 1/14/50          233,000       163,989
        627,140
Chile — 0.02%
Chile Government
International Bonds
     
2.55% 1/27/32          258,000        211,735
3.10% 5/7/41          323,000        233,153
3.50% 1/25/50          200,000       144,975
        589,863
Colombia — 0.03%
Colombia Government
International Bonds
     
3.00% 1/30/30          272,000        208,852
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Colombia (continued)
Colombia Government
International Bonds
     
3.25% 4/22/32          300,000 $      219,135
4.125% 2/22/42          217,000        136,455
5.00% 6/15/45          200,000        136,811
5.20% 5/15/49          200,000       136,967
        838,220
Costa Rica — 0.01%
Costa Rica Government International Bond
144A 5.625% 4/30/43 #
         200,000       164,569
        164,569
Dominican Republic — 0.04%
Dominican Republic
International Bonds
     
144A 4.875% 9/23/32 #          885,000        737,923
144A 5.50% 2/22/29 #          200,000       184,772
        922,695
Ecuador — 0.01%
Ecuador Government
International Bonds
     
144A 1.50% 7/31/40 #, ~          278,501        114,695
144A 2.50% 7/31/35 #, ~          328,384        152,751
144A 5.50% 7/31/30 #, ~          125,307         81,139
144A 6.61% 7/31/30 #, ^           35,470        13,951
        362,536
Egypt — 0.03%
Egypt Government
International Bonds
     
144A 5.75% 5/29/24 #          591,000        565,066
144A 8.70% 3/1/49 #          359,000       240,694
        805,760
El Salvador — 0.00%
El Salvador Government International Bond
144A 7.125% 1/20/50 #
         275,000       108,869
        108,869
 
34    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Gabon — 0.01%
Gabon Government International Bond
144A 6.625% 2/6/31 #
         200,000 $      164,300
        164,300
Georgia — 0.01%
Georgia Government International Bond
144A 2.75% 4/22/26 #
         200,000       181,723
        181,723
Ghana — 0.00%
Ghana Government International Bond
144A 7.75% 4/7/29 #
         230,000        86,572
         86,572
Guatemala — 0.02%
Guatemala
Government Bonds
     
144A 4.875% 2/13/28 #          400,000        386,658
144A 5.25% 8/10/29 #          200,000       192,730
        579,388
Honduras — 0.01%
Honduras Government International Bond
6.25% 1/19/27 
         200,000       176,963
        176,963
Hong Kong — 0.03%
Airport Authority      
144A 2.50% 1/12/32 #          430,000        352,911
144A 3.25% 1/12/52 #          425,000       301,270
        654,181
Hungary — 0.11%
National Bank of Hungary Bill
119.687% 1/3/23 ≠
HUF    950,000,000     2,546,934
      2,546,934
Indonesia — 0.02%
Indonesia Government
International Bonds
     
144A 4.625% 4/15/43 #          200,000        182,855
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Indonesia (continued)
Indonesia Government
International Bonds
     
4.65% 9/20/32          200,000 $      196,167
        379,022
Israel — 0.11%
Israel Government
International Bonds
     
2.75% 7/3/30        1,200,000      1,092,930
3.875% 7/3/50          200,000        169,028
State of Israel      
3.375% 1/15/50          200,000        154,514
3.80% 5/13/60        1,600,000     1,258,493
      2,674,965
Ivory Coast — 0.02%
Ivory Coast Government International Bond
144A 6.125% 6/15/33 #
         590,000       526,575
        526,575
Japan — 5.40%
Japan Treasury
Discount Bills
     
15.55% 1/23/23 ≠ JPY 12,000,000,000     91,444,437
22.345% 1/16/23 ≠ JPY  5,010,000,000    38,176,457
    129,620,894
Jordan — 0.01%
Jordan Government International Bond
144A 4.95% 7/7/25 #
         200,000       192,327
        192,327
Kazakhstan — 0.01%
Kazakhstan Government International Bond
144A 6.50% 7/21/45 #
         207,000       216,269
        216,269
Kenya — 0.01%
Republic of Kenya Government International Bond
144A 8.00% 5/22/32 #
         200,000       171,432
        171,432
 
NQ-OPTFI [12/22] 2/23 (2747704)    35

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Lebanon — 0.00%
Lebanon Government International Bond
6.25% 5/27/22 ‡
         582,000 $       36,058
         36,058
Mexico — 0.01%
Mexico Government
International Bonds
     
4.40% 2/12/52          225,000        166,256
4.875% 5/19/33          200,000       183,989
        350,245
Morocco — 0.01%
Morocco Government International Bond
144A 2.375% 12/15/27 #
         300,000       262,134
        262,134
Nigeria — 0.02%
Nigeria Government International Bond
144A 7.875% 2/16/32 #
         537,000       406,531
        406,531
Oman — 0.02%
Oman Government
International Bonds
     
144A 6.75% 1/17/48 #          343,000        322,427
7.375% 10/28/32          200,000       217,615
        540,042
Pakistan — 0.00%
Pakistan Government International Bond
144A 7.375% 4/8/31 #
         200,000        72,000
         72,000
Panama — 0.02%
Panama Bonos del Tesoro
3.362% 6/30/31 
         200,000        162,500
Panama Government International Bond
144A 3.75% 4/17/26 #
         363,000       342,313
        504,813
Paraguay — 0.03%
Paraguay Government
International Bonds
     
144A 4.95% 4/28/31 #          300,000        291,039
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Paraguay (continued)
Paraguay Government
International Bonds
     
144A 5.40% 3/30/50 #          403,000 $      348,774
        639,813
Peru — 0.03%
Peruvian Government
International Bonds
     
2.392% 1/23/26          323,000        297,955
2.844% 6/20/30          512,000        433,761
5.625% 11/18/50           35,000        34,735
        766,451
Qatar — 0.02%
Qatar Government International Bond
144A 4.40% 4/16/50 #
         400,000       367,101
        367,101
Republic of North Macedonia — 0.01%
North Macedonia Government International Bond
144A 3.675% 6/3/26 #
EUR        150,000       148,589
        148,589
Romania — 0.06%
Romanian Government
International Bonds
     
144A 1.75% 7/13/30 # EUR      1,800,000      1,344,996
144A 2.625% 12/2/40 # EUR        123,000         73,975
144A 3.375% 1/28/50 # EUR        109,000        67,576
      1,486,547
Saudi Arabia — 0.03%
Saudi Government
International Bonds
     
144A 3.25% 11/17/51 #          400,000        289,833
144A 3.625% 3/4/28 #          541,000       517,533
        807,366
Senegal — 0.01%
Senegal Government
International Bonds
     
144A 5.375% 6/8/37 # EUR        200,000        144,599
 
36    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Senegal (continued)
Senegal Government
International Bonds
     
144A 6.75% 3/13/48 #          210,000 $      149,046
        293,645
Serbia — 0.02%
Serbia International
Bonds
     
144A 1.00% 9/23/28 # EUR        200,000        154,019
144A 2.125% 12/1/30 #          200,000        144,420
144A 3.125% 5/15/27 # EUR        100,000        92,476
        390,915
South Africa — 0.15%
Republic of South
Africa Government International Bonds
     
4.85% 9/30/29        3,200,000      2,864,236
5.65% 9/27/47          200,000        147,694
5.75% 9/30/49          542,000        400,447
5.875% 6/22/30          268,000       250,228
      3,662,605
Sri Lanka — 0.01%
Sri Lanka Government International Bond
144A 6.20% 5/11/27 #
         453,000       144,543
        144,543
Trinidad and Tobago — 0.01%
Trinidad & Tobago Government International Bond
144A 4.50% 6/26/30 #
         200,000       190,223
        190,223
Turkey — 0.04%
Hazine Mustesarligi Varlik Kiralama
144A 5.125% 6/22/26 #
         200,000        183,894
Turkey Government International Bond
7.625% 4/26/29 
         500,000        473,042
    Principal
amount°
Value (US $)
Sovereign Bonds (continued)
Turkey (continued)
Turkiye Ihracat Kredi Bankasi
144A 5.75% 7/6/26 #
         350,000 $      319,402
        976,338
Ukraine — 0.01%
Ukraine Government International Bond
144A 7.75% 9/1/28 #
         804,000       173,865
        173,865
Uruguay — 0.01%
Uruguay Government International Bond
4.375% 1/23/31 
         232,000       231,021
        231,021
Uzbekistan — 0.02%
Republic of Uzbekistan
International Bonds
     
144A 3.90% 10/19/31 #          200,000        165,000
144A 5.375% 2/20/29 #          448,000       416,398
        581,398
Total Sovereign Bonds
(cost $150,817,233)
  158,048,265
 
Supranational Banks — 0.01%
Banque Ouest Africaine de Developpement
144A 2.75% 1/22/33 #
EUR        200,000       162,741
Total Supranational Banks
(cost $240,998)
      162,741
 
US Treasury Obligations — 16.06%
US Treasury Bonds      
1.25% 5/15/50 ∞        1,800,000        969,363
1.375% 11/15/40          100,000         65,066
1.625% 11/15/50       13,500,000      8,037,510
1.75% 8/15/41        1,800,000      1,232,684
1.875% 2/15/41       52,800,000     37,347,753
1.875% 2/15/51        2,700,000      1,716,979
1.875% 11/15/51        5,100,000      3,231,926
2.00% 2/15/50       16,000,000     10,577,187
2.00% 8/15/51            5,000          3,276
2.25% 8/15/46       10,800,000      7,653,234
2.25% 2/15/52        4,130,000      2,873,577
2.50% 2/15/45 ∞       37,100,000     27,966,299
 
NQ-OPTFI [12/22] 2/23 (2747704)    37

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Principal
amount°
Value (US $)
US Treasury Obligations (continued)
US Treasury Bonds      
2.75% 8/15/42          900,000 $      724,482
2.75% 11/15/42        1,400,000      1,123,500
2.875% 5/15/43        2,200,000      1,797,726
2.875% 8/15/45       16,700,000     13,461,766
2.875% 5/15/52       12,570,000     10,075,641
3.00% 5/15/47          900,000        737,086
3.00% 8/15/48        3,770,000      3,097,880
3.00% 8/15/52       12,925,000     10,653,028
3.125% 5/15/48        1,490,000      1,252,997
4.00% 11/15/42          580,000        568,037
4.00% 11/15/52        2,645,000      2,649,546
US Treasury Floating Rate Note
4.60% (USBMMY3M + 0.14%) 10/31/24 •
      91,110,000     91,016,302
US Treasury Inflation Indexed Notes
0.625% 7/15/32
      13,744,246     12,600,154
US Treasury Notes      
0.50% 10/31/27       13,200,000     11,166,375
1.875% 8/31/24 ∞        2,170,000      2,076,080
2.00% 6/30/24 ∞        7,700,000      7,407,340
2.125% 3/31/24 ∞        2,010,000      1,947,698
2.125% 11/30/24 ∞       11,130,000     10,655,670
2.25% 11/15/24 ∞       11,030,000     10,596,125
2.375% 2/29/24 ∞        4,000,000      3,896,719
2.375% 8/15/24 ∞        1,820,000      1,756,584
2.375% 3/31/29        7,190,000      6,538,828
2.50% 1/31/24 ∞        2,790,000      2,725,263
2.625% 3/31/25       12,700,000     12,238,633
2.875% 11/30/23 ∞        2,500,000      2,459,288
3.875% 11/30/27        1,555,000      1,546,739
3.875% 11/30/29       13,085,000     13,000,152
4.00% 12/15/25        1,190,000      1,182,562
4.00% 10/31/29          910,000        910,498
4.125% 10/31/27       20,925,000     21,003,469
4.125% 11/15/32       13,595,000     13,876,459
4.25% 10/15/25        5,215,000      5,211,741
4.375% 10/31/24        2,520,000      2,513,011
US Treasury Strip Principal
2.26% 5/15/44 ^
       4,290,000     1,764,481
Total US Treasury Obligations
(cost $415,680,333)
  385,906,714
    
    Number of
shares
Value (US $)
Common Stocks — 0.02%
Communication Services — 0.00%
Century Communications =, †        1,975,000 $            0
              0
Consumer Cyclical — 0.02%
Grupo Aeromexico =, †           50,210       463,798
        463,798
Total Common Stocks
(cost $880,472)
      463,798
 
Preferred Stock — 0.01%
General Electric 8.099% (LIBOR03M + 3.33%) ω, •          200,000       197,239
Total Preferred Stock
(cost $199,875)
      197,239
    Notional
amount*
 
Options Purchased — 0.21%
Put Swaptions — 0.21%
30 yr IRS pay a fixed rate 2.06% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/25/23 (BOFA)
      15,500,000     3,900,609
30 yr IRS pay a fixed rate 2.102% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 9/15/23 (MS)
       4,800,000     1,181,154
Total Options Purchased
(premium paid $1,145,185)
    5,081,763
    
 
38    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Number of
shares
Value (US $)
Short-Term Investments — 22.90%
Money Market Mutual Funds — 0.84%
BlackRock Liquidity FedFund – Institutional Shares (seven-day effective yield 4.03%)        5,057,448 $    5,057,448
Fidelity Investments Money Market Government Portfolio – Class I (seven-day effective yield 4.06%)        5,057,448      5,057,448
Goldman Sachs Financial Square Government Fund – Institutional Shares (seven-day effective yield 4.23%)        5,057,448      5,057,448
Morgan Stanley Institutional Liquidity Funds Government Portfolio – Institutional Class (seven-day effective yield 4.11%)        5,057,448     5,057,448
     20,229,792
    Principal
amount°
 
Repurchase Agreements — 22.06%
US Treasury repurchase agreement with Nomura Securities International 4.26%, dated 12/30/22, to be repurchased 1/4/23, repurchase price $269,831,926
(collateralized by US government obligations; 1.375% - 4.25%; market value $273,574,420)
     263,800,000   263,800,000
    Principal
amount°
Value (US $)
Repurchase Agreements (continued)
US Treasury repurchase agreement with Nomura Securities International 4.28%, dated 12/29/22, to be repurchased 1/3/23, repurchase price $266,126,498
(collateralized by US government obligations; 0.75%; market value $271,421,515)
     266,000,000 $  266,000,000
    529,800,000
Total Short-Term Investments
(cost $550,029,792)
  550,029,792
Total Value of Securities Before
Options Written—126.50%
(cost $3,256,578,553)
3,039,067,622
    Notional
amount*
 
Options Written — (0.40%)
Call Swaptions — (0.00%)
1 yr IRS pay a fixed rate 0.55% and receive a floating rate based on
3-month EURIBOR expiration date
3/31/23 (BNP)
     (66,200,000)           (16)
1 yr IRS pay a fixed rate 0.70% and receive a floating rate based on
3-month EURIBOR expiration date 4/26/23 (GS)
      (4,200,000)            (6)
1 yr IRS pay a fixed rate 0.70% and receive a floating rate based on
3-month EURIBOR expiration date 4/28/23 (BNP)
      (4,300,000)            (7)
NQ-OPTFI [12/22] 2/23 (2747704)    39

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
    Notional
amount*
Value (US $)
Options Written (continued)
Call Swaptions (continued)
1 yr IRS pay a fixed rate 2.841% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/27/23 (GS)
      (1,800,000) $       (1,228)
1 yr IRS pay a fixed rate 2.92% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/13/23 (DB)
      (3,000,000)         (1,950)
1 yr IRS pay a fixed rate 2.92% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/13/23 (GS)
      (2,600,000)         (1,690)
1 yr IRS pay a fixed rate 2.973% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/25/23 (GS)
      (1,800,000)         (1,366)
1 yr IRS pay a fixed rate 3.018% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/20/23 (GS)
      (1,700,000)         (1,290)
1 yr IRS pay a fixed rate 3.14% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/23/23 (GS)
      (1,700,000)         (1,484)
    Notional
amount*
Value (US $)
Options Written (continued)
Call Swaptions (continued)
1 yr IRS pay a fixed rate 3.19% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/23/23 (GS)
      (1,700,000) $       (1,558)
1 yr IRS pay a fixed rate 3.225% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/23/23 (GS)
      (1,700,000)        (1,613)
        (12,208)
Put Swaptions — (0.40%)
1 yr IRS pay a fixed rate 2.10% and receive a floating rate based on
3-month EURIBOR expiration date 3/31/23 (BNP)
     (66,200,000)     (1,024,968)
1 yr IRS pay a fixed rate 2.25% and receive a floating rate based on
3-month EURIBOR expiration date 4/26/23 (GS)
      (4,200,000)        (60,316)
1 yr IRS pay a fixed rate 2.25% and receive a floating rate based on
3-month EURIBOR expiration date 4/28/23 (BNP)
      (4,300,000)        (61,611)
1 yr IRS pay a fixed rate 2.841% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/27/23 (GS)
      (1,800,000)        (34,219)
 
40    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
    Notional
amount*
Value (US $)
Options Written (continued)
Put Swaptions (continued)
1 yr IRS pay a fixed rate 2.92% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/13/23 (DB)
      (3,000,000) $      (55,747)
1 yr IRS pay a fixed rate 2.92% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/13/23 (GS)
      (2,600,000)        (48,314)
1 yr IRS pay a fixed rate 2.973% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/25/23 (GS)
      (1,800,000)        (32,378)
1 yr IRS pay a fixed rate 3.018% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/20/23 (GS)
      (1,700,000)        (29,955)
1 yr IRS pay a fixed rate 3.14% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/23/23 (GS)
      (1,700,000)        (28,156)
1 yr IRS pay a fixed rate 3.19% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/23/23 (GS)
      (1,700,000)        (27,435)
    Notional
amount*
Value (US $)
Options Written (continued)
Put Swaptions (continued)
1 yr IRS pay a fixed rate 3.225% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/23/23 (GS)
      (1,700,000) $      (26,932)
5 yr IRS pay a fixed rate 1.96% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 9/15/23 (MS)
     (24,000,000)     (1,961,439)
5 yr IRS pay a fixed rate 2.00% and receive a floating rate based on
3-month USD-ICE LIBOR expiration date 10/25/23 (BOFA)
     (77,500,000)    (6,103,448)
     (9,494,918)
Total Options Written
(premium received $1,643,091)
   (9,507,126)
Liabilities Net of Receivables and Other Assets—(26.10%)      (627,105,021)
Net Assets Applicable to 300,362,814 Shares Outstanding—100.00%     $2,402,455,475
° Principal amount shown is stated in USD unless noted that the security is denominated in another currency.
ω Perpetual security with no stated maturity date.
Non-income producing security.
= The value of this security was determined using significant unobservable inputs and is reported as a Level 3 security.
Fully or partially pledged as collateral for futures and swap contracts.
Non-income producing security. Security is currently in default.
The rate shown is the effective yield at the time of purchase.
 
NQ-OPTFI [12/22] 2/23 (2747704)    41

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
X This loan will settle after December 31, 2022, at which time the interest rate, based on the LIBOR and the agreed upon spread on trade date, will be reflected.
* Notional amount shown is stated in USD unless noted that the swap is denominated in another currency.
~ Step-up bond that pays an initial coupon rate for the first period and then a higher coupon rate for the following periods. Stated rate in effect at December 31, 2022.
μ Fixed to variable rate investment. The rate shown reflects the fixed rate in effect at December 31, 2022. Rate will reset at a future date.
Pass Through Agreement. Security represents the contractual right to receive a proportionate amount of underlying payments due to the counterparty pursuant to various agreements related to the rescheduling of obligations and the exchange of certain notes.
# Security exempt from registration under Rule 144A of the Securities Act of 1933, as amended. At December 31, 2022, the aggregate value of Rule 144A securities was $466,782,785, which represents 19.43% of the Fund's net assets.
Σ Interest only security. An interest only security is the interest only portion of a fixed income security, which is separated and sold individually from the principal portion of the security.
^ Zero-coupon security. The rate shown is the effective yield at the time of purchase.
Ω Principal only security. A principal only security is the principal only portion of a fixed income security which is separated and sold individually from the interest portion of the security.
Variable rate investment. Rates reset periodically. Rate shown reflects the rate in effect at December 31, 2022. For securities based on a published reference rate and spread, the reference rate and spread are indicated in their descriptions. The reference rate descriptions (i.e. LIBOR03M, LIBOR06M, etc.) used in this report are identical for different securities, but the underlying reference rates may differ due to the timing of the reset period. Certain variable rate securities are not based on a published reference rate and spread but are determined by the issuer or agent and are based on current market conditions, or for mortgage-backed securities, are impacted by the individual mortgages which are paying off over time. These securities do not indicate a reference rate and spread in their descriptions.
ψ Perpetual security. Maturity date represents next call date.
Includes $11,530,765 cash collateral held at brokers for certain open derivatives, $896,000 cash collateral pledged for TBA transactions, and $260,000 cash collateral due to brokers for certain open derivatives.
 
The following foreign currency exchange contracts, futures contracts, and swap contracts were outstanding at December 31, 2022:
Foreign Currency Exchange Contracts            
Counterparty   Currency to
Receive (Deliver)
  In Exchange For   Settlement
Date
  Unrealized
Appreciation
  Unrealized
Depreciation
BAML   AUD 5,164,000   USD (3,480,568)   1/10/23   $36,984   $
BAML   EUR 630,000   USD (669,353)   1/10/23   5,563  
BAML   GBP (243,000)   USD 296,103   1/10/23   2,240  
BAML   JPY (2,147,483,648)   USD 82,510,293   1/23/23     (9,230,746)
BAML   ZAR 20,256,749   USD (1,141,357)   1/9/23   49,789  
BAML   ZAR 31,484,599   USD (1,756,610)   2/17/23   88,330  
BCLY   HUF 5,488,000   USD (14,614)   1/3/23   78  
BNP   CAD (1,476,000)   USD 1,100,304   1/10/23   10,142  
BNP   COP 1,508,200,000   USD (304,883)   3/15/23   1,746  
BNP   HUF (955,488,341)   USD 2,500,000   1/3/23     (58,121)
BNP   INR 24,805,188   USD (299,012)   3/14/23     (721)
BNP   JPY 1,755,080,219   USD (12,707,373)   1/10/23   685,926  
BNP   KRW (127,502,958)   USD 96,900   1/19/23     (4,386)
BNP   MXN (23,826,000)   USD 1,182,187   3/21/23     (22,405)
BNP   PLN (20,764,000)   USD 4,128,564   1/13/23     (605,288)
BNP   ZAR 18,444,909   USD (1,026,780)   2/13/23   54,399  
CITI   BRL 36,269,170   USD (6,882,848)   2/2/23     (60,304)
CITI   EUR (88,778,000)   USD 92,039,890   1/10/23     (3,067,564)
CITI   MXN 60,612   USD (2,998)   5/9/23   37  
CITI   ZAR 10,804,000   USD (611,520)   9/12/23   11,134  
DB   JPY (2,147,483,648)   USD 34,980,048   1/17/23     (3,289,604)
DB   ZAR 8,244,054   USD (493,641)   2/13/23     (10,402)
JPMCB   DKK (25,845,000)   USD 3,613,713   1/10/23     (109,984)
JPMCB   EUR (921,000)   USD 955,973   2/3/23     (32,384)
JPMCB   GBP (6,529,000)   USD 7,883,937   1/10/23     (11,691)
42    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
Foreign Currency Exchange Contracts            
Counterparty   Currency to
Receive (Deliver)
  In Exchange For   Settlement
Date
  Unrealized
Appreciation
  Unrealized
Depreciation
JPMCB   MXN (14,887,838)   USD 726,193   2/21/23   $   $(30,281)
JPMCB   ZAR 18,410,492   USD (1,026,780)   1/18/23   54,837  
TD   EUR (6,452,284)   USD 6,735,668   1/20/23     (161,041)
Total Foreign Currency Exchange Contracts   $1,001,205   $(16,694,922)
Futures Contracts
Exchange-Traded
Contracts to Buy (Sell)   Notional
Amount
  Notional
Cost
(Proceeds)
  Expiration
Date
  Value/
Unrealized
Appreciation
  Value/
Unrealized
Depreciation
  Variation
Margin
Due from
(Due to)
Brokers
(173) Euro-Bobl   $(21,435,494)   $(22,086,845)   3/8/23   $651,351   $   $81,554
5 Euro-BTP   582,967   626,218   3/8/23     (43,251)   (6,120)
(127) Euro-Bund   (18,071,455)   (19,235,698)   3/8/23   1,164,243     147,535
(309) Euro-Schatz   (34,869,673)   (35,310,049)   3/8/23   440,376     44,336
(25) Long 10 yr Gilt   (3,019,353)   (3,216,689)   3/29/23   197,336     (2,968)
712 US Treasury 2 yr Notes   146,015,625   145,909,492   3/31/23   106,133     (111,250)
2,241 US Treasury 5 yr Notes   241,870,430   242,072,003   3/31/23     (201,573)   (192,592)
(674) US Treasury 10 yr Notes   (75,688,097)   (76,285,836)   3/22/23   597,739     94,778
641 US Treasury 10 yr Notes   71,982,300   72,184,132   3/22/23     (201,832)   (90,137)
(366) US Treasury 10 yr Ultra Notes   (43,290,938)   (43,352,171)   3/22/23   61,233     22,875
505 US Treasury Long Bonds   63,298,594   64,105,695   3/22/23     (807,101)   (78,906)
(2) US Treasury Long Bonds   (250,688)   (250,651)   3/22/23     (37)   312
29 US Treasury Ultra Bonds   3,895,063   3,886,219   3/22/23   8,844     (14,500)
(3) US Treasury Ultra Bonds   (402,938)   (402,957)   3/22/23   19     1,500
Total Futures Contracts   $328,642,863       $3,227,274   $(1,253,794)   $(103,583)
NQ-OPTFI [12/22] 2/23 (2747704)    43

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
Swap Contracts
CDS Contracts1
Counterparty/
Reference Obligation/
Termination Date/
Payment Frequency
  Notional
Amount2
  Annual Protection
Payments
  Value   Upfront
Payments
Paid
(Received)
  Unrealized
Appreciation3
  Unrealized
Depreciation3
  Variation Margin
Due from
(Due to) Brokers
Centrally Cleared:                            
Protection Sold/Moody's Ratings:                            
AT&T 2.45%
5/15/18 Baa2 6/20/24-Quarterly
   1,800,000   1.000%   $2,304   $15,136   $   $(12,832)   $(22,702)
Boeing 2.60%
10/20/25 Baa3
12/20/26-Quarterly
   4,100,000   1.000%   (49,089)   (18,249)     (30,840)   (19,075)
Boeing 2.60%
10/30/25 Baa2
6/20/23-Quarterly
   1,400,000   1.000%   1,760   944   816     (5,014)
Boeing 2.60%
10/30/25 Baa2
6/26/26-Quarterly
   700,000   1.000%   (6,717)   (3,590)     (3,127)   (7,119)
British Telecom 2.70%
10/9/22 Baa1 12/20/28-Quarterly
  EUR 1,600,000   1.000%   (69,812)   (69,502)     (310)   3,980
British Telecom 5.75% 12/7/28 Baa2
12/20/24-Quarterly
  EUR 2,800,000   1.000%   17,994   40,126     (22,132)   (46,948)
CDX.ITRX.EUR.344
6/20/27-Quarterly
  EUR 100,000   1.000%   692   (421)   1,113     (139,079)
CDX.NA.IG.355 12/20/25-Quarterly    400,000   1.000%   5,029   6,269     (1,240)   (649,269)
CDX.NA.IG.365
6/20/26-Quarterly
   1,900,000   1.000%   23,126   32,730     (9,604)   (384,054)
CDX.NA.IG.375
12/20/26-Quarterly
   300,000   1.000%   3,309   5,275     (1,966)   246,118
General Electric 2.70% 10/9/22 Baa1
12/20/26-Quarterly
   1,200,000   1.000%   5,007   10,314     (5,307)   11,234
General Electric 2.70% 10/9/22 Baa1 6/20/26-Quarterly    600,000   1.000%   3,563   4,023     (460)   2,801
General Motors 5.70% 10/9/22 Baa1 12/20/26-Quarterly    600,000   5.000%   62,589   89,825     (27,236)   (3,542)
Stellantis 5.00%
1/11/21 Baa3 6/20/26-Quarterly
  EUR 3,100,000   5.000%   389,691   528,321     (138,630)   78,466
Tesco 1.00%
6/25/19 Baa3
6/20/28-Quarterly
  EUR 2,700,000   1.000%   (60,632)   648     (61,280)   (24,109)
Valeo 1.00% Baa3
6/20/26-Quarterly
  EUR 400,000   1.000%   (17,369)   (5,122)     (12,247)   (288,888)
Valeo 1.00% Baa3
6/20/28-Quarterly
  EUR 3,000,000   1.000%   (292,115)   (110,050)     (182,065)   3,682
44    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
 
Counterparty/
Reference Obligation/
Termination Date/
Payment Frequency
  Notional
Amount2
  Annual Protection
Payments
  Value   Upfront
Payments
Paid
(Received)
  Unrealized
Appreciation3
  Unrealized
Depreciation3
  Variation Margin
Due from
(Due to) Brokers
Centrally Cleared:Protection Sold/Moody's Ratings (continued):                            
    19,330   526,677   1,929   (509,276)   (1,243,518)
Over-The-Counter:                            
Protection Purchased/Moody’s Ratings:                            
JPMCB Mexico 10.375% 1/28/33 Baa2
6/22/26-Quarterly
   2,085,000   1.000%   $(2,595)   $10,828   $   $(13,423)   $
JPMCB Republic of Brazil 4.25% 1/7/25 Ba2
6/20/26-Quarterly
   2,570,000   1.000%   69,366   56,380   12,986    
Protection Sold/Moody's Ratings:                            
DB CMBX.NA.AAA6 10/17/57-Monthly    14,200,000   0.500%   10,906   (800,809)   811,715    
JPMCB HOCHTIEF 1.00% 3/7/25 BBB
12/20/26-Quarterly
  EUR 1,100,000   5.000%   126,502   204,412     (77,910)  
JPMCB HOCHTIEF 5.00% 3/7/25 BBB
12/20/26-Quarterly
  EUR 1,100,000   5.000%   126,502   202,779     (76,277)  
JPMCB Republic of South Africa 5.50%
3/9/20 Baa3
12/20/23-Quarterly
   700,000   1.000%   930   (6,540)   7,470    
    331,611   (332,950)   832,171   (167,610)  
Total CDS Contracts   $350,941   $193,727   $834,100   $(676,886)   $(1,243,518)
IRS Contracts7                            
Reference Obligation/
Termination Date/
Payment Frequency
(Fixed Rate/
Floating Rate)
  Notional Amount2   Fixed/
Floating
Interest
Rate
Paid
(Received)
  Value   Upfront
Payments
Paid
(Received)
  Unrealized
Appreciation3
  Unrealized
Depreciation3
  Variation Margin
Due from
(Due to) Brokers
Centrally Cleared:
1 yr IRS8 3/24/23-
(28 Days/
28 Days)
  MXN 172,990,000   (5.66)%/
7.235%
  $(110,687)   $(1,226)   $   $(109,461)   $(115,615)
1 yr IRS9 11/4/23-
(Semiannually/ Quarterly)
   156,100,000   (1.27)%/
4.767%
  (4,949,063)       (4,949,063)   (3,941,948)
2 yr IRS9 3/30/23-
(Semiannually/ Quarterly)
   7,600,000   0.25%/
(4.767)%
  84,209   (822)   85,031     (58,834)
NQ-OPTFI [12/22] 2/23 (2747704)    45

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
IRS Contracts7                            
Reference Obligation/
Termination Date/
Payment Frequency
(Fixed Rate/
Floating Rate)
  Notional Amount2   Fixed/
Floating
Interest
Rate
Paid
(Received)
  Value   Upfront
Payments
Paid
(Received)
  Unrealized
Appreciation3
  Unrealized
Depreciation3
  Variation Margin
Due from
(Due to) Brokers
Centrally Cleared (continued):
2 yr IRS10 8/10/24-
(Annually/ Semiannually)
  EUR 1,500,000   (0.55)%/
2.693%
  $(70,810)   $   $   $(70,810)   $(3,401)
3 yr IRS11 1/2/25-
(At Maturity/ At Maturity)
  BRL 36,000,000   11.835%/
(13.65)%
  (142,314)       (142,314)   107,353
3 yr IRS11 1/2/25-
(At Maturity/ At Maturity)
  BRL 37,000,000   11.80%/
(13.65)%
  (151,571)       (151,571)   105,000
3 yr IRS11 1/2/25-
(At Maturity/ At Maturity)
  BRL 37,000,000   11.734%/
(13.65)%
  (161,565)       (161,565)   94,985
5 yr IRS9 2/18/26-
(Semiannually/ Quarterly)
   42,100,000   (0.64)%/
4.767%
  (4,472,713)   (228,296)     (4,244,417)   (175,357)
5 yr IRS11 1/4/27-
(At Maturity/ At Maturity)
  BRL 6,600,000   10.12%/
(13.65)%
  (146,338)       (146,338)   22,089
5 yr IRS10 1/4/27-
(Semiannually/ Annually)
  EUR 4,100,000   (1.00)%/
2.693%
  (383,664)       (383,664)   13,866
5 yr IRS11 1/4/27-
(At Maturity/ At Maturity)
  BRL 43,000,000   11.115%/
(13.65)%
  (570,463)   (226,907)     (343,556)   122,615
5 yr IRS12 3/15/28-
(Annually/ Annually)
  GBP 27,600,000   2.25%/
(3.43)%
  2,684,628   1,609,154   1,075,474     3,747,450
5 yr IRS12 9/16/25-
(Annually/ Annually)
  GBP 5,700,000   0.50%/
(3.428)%
  667,723   (33,684)   701,407     (292,644)
5 yr IRS10 4/11/27-
(Annually/ Semiannually)
  EUR 1,900,000   (0.70)%/
2.693%
  (198,806)       (198,806)   10,738
5 yr IRS10 4/12/27-
(Annually/ Semiannually)
  EUR 3,800,000   (0.65)%/
2.693%
  (405,761)       (405,761)   26,059
5 yr IRS10 5/18/27-
(Annually/ Semiannually)
  EUR 2,000,000   (1.00)%/
2.693%
  (188,011)       (188,011)   5,428
6 yr IRS11 1/4/27-
(At Maturity/ At Maturity)
  BRL 32,100,000   11.065%/
(13.65)%
  (434,795)       (434,795)   209,696
6 yr IRS11 1/4/27-
(At Maturity/ At Maturity)
  BRL 67,700,000   10.995%/
(13.65)%
  (960,880)       (960,880)   (209,306)
6 yr IRS11 1/4/27-
(At Maturity/ At Maturity)
  BRL 32,400,000   11.098%/
(13.65)%
  (435,093)       (435,093)   210,927
46    NQ-OPTFI [12/22] 2/23 (2747704)

(Unaudited)
IRS Contracts7                            
Reference Obligation/
Termination Date/
Payment Frequency
(Fixed Rate/
Floating Rate)
  Notional Amount2   Fixed/
Floating
Interest
Rate
Paid
(Received)
  Value   Upfront
Payments
Paid
(Received)
  Unrealized
Appreciation3
  Unrealized
Depreciation3
  Variation Margin
Due from
(Due to) Brokers
Centrally Cleared (continued):
10 yr IRS10 3/15/33-
(Annually/ Semiannually)
  EUR 15,660,000   (1.75)%/
2.693%
  $(2,002,032)   $(1,913,935)   $   $(88,097)   $50,421
10 yr IRS9 3/3/25-
(Semiannually/ Quarterly)
   8,600,000   (1.80)%/
4.767%
  (1,308,452)   109,101     (1,417,553)   (1,486,048)
10 yr IRS13 5/18/32-
(Annually/ Annually)
   9,900,000   (1.852)%/
4.30%
  (1,359,277)       (1,359,277)   52,982
10 yr IRS13 12/14/32-
(Annually/ Annually)
   9,700,000   3.35%/
(4.30)%
  169,267     169,267     159,777
10yr IRS13 7/15/32-(Annually/ Annually)    16,200,000   1.857%/
(4.30)%
  (2,214,431)       (2,214,431)   6,646
30 yr IRS13 12/21/52-
(Annually/ Annually)
   17,000,000   1.75%/
(4.30)%
  4,653,486   3,483,626   1,169,860     (4,657)
Total IRS Contracts           $(12,407,413)   $2,797,011   $3,201,039   $(18,405,463)   $(1,341,778)
The use of foreign currency exchange contracts, futures contracts, and swap contracts involves elements of market risk and risks in excess of the amounts disclosed in the schedule of investments. The notional amounts and foreign currency exchange contracts presented above represent the Fund's total exposure in such contracts, whereas only the net unrealized appreciation (depreciation) and variation margin are reflected in the Fund's net assets.
1 A CDS contract is a risk-transfer instrument through which one party (purchaser of protection) transfers to another party (seller of protection) the financial risk of a credit event (as defined in the CDS agreement), as it relates to a particular reference security or basket of securities (such as an index). Periodic payments (receipts) on such contracts are accrued daily and recorded as unrealized losses (gains) on swap contracts. Upon payment (receipt), such amounts are recorded as realized losses (gains) on swap contracts. Upfront payments made or received in connection with CDS contracts are amortized over the expected life of the CDS contracts as unrealized losses (gains) on swap contracts. The change in value of CDS contracts is recorded daily as unrealized appreciation or depreciation. A realized gain or loss is recorded upon a credit event (as defined in the CDS agreement) or the maturity or termination of the CDS agreement.
2 Notional amount shown is stated in USD unless noted that the swap is denominated in another currency.
3 Unrealized appreciation (depreciation) does not include periodic interest payments (receipt) on swap contracts accrued daily in the amount of $(2,251,209).
4 Markit’s iTraxx Europe Subordinated Financials Index, or the ITRX EUR SUB FIN, is comprised of 25 Financial entities from the Markit iTraxx® Europe Index referencing subordinated debt.
5 Markit’s North America Investment Grade Index, or the CDX.NA.IG
  Index, is composed of 125 liquid North American entities with investment grade credit ratings that trade in the CDS market.
6 Markit’s CMBX Index, or the CMBX.NA Index, is a synthetic tradable index referencing a basket of 25 commercial mortgage backed securities in North America. Credit-quality rating are measured on a scale that generally ranges from AAA (highest) to BB (lowest). US Agency and US Agency mortgage-backed securities appear under US Government.
7 An IRS agreement is an exchange of interest rates between counterparties. Periodic payments (receipt) on such contracts are accrued daily and recorded as unrealized appreciation (depreciation) on swap contracts. Upon periodic payment (receipt) or termination of the contract, such amounts are recorded as realized gains (losses) on swap contracts.
8 Rate resets based on MXIBTIIE.
9 Rate resets based on LIBOR03M.
10 Rate resets based on EUR006M.
11 Rate paid based on Brazil CETIP Interbank Deposit.
12 Rate resets based on BP0012M.
 
NQ-OPTFI [12/22] 2/23 (2747704)    47

Schedule of investments
Optimum Fixed Income Fund   (Unaudited)
13 Rate resets based on SOFR.
Summary of abbreviations:
ABS – Asset-Backed Security
ARM – Adjustable Rate Mortgage
BAML – Bank of America Merrill Lynch
BCLY – Barclays Bank
BNP – BNP Paribas
BP0003M – 3 Month Sterling LIBOR Interest Rate
BTP – Buoni del Tesoro Poliennali
CDX.NA.IG – Credit Default Swap Index North America Investment Grade
CITI – Citigroup
CLO – Collateralized Loan Obligation
DAC – Designated Activity Company
DB – Deutsche Bank
EUR003M – EURIBOR EUR 3 Month
EURIBOR – Euro interbank offered rate
FREMF – Freddie Mac Multifamily
GMTN – Global Medium Term Note
GNMA – Government National Mortgage Association
GS – Goldman Sachs
H15T1Y – US Treasury Yield Curve Rate T Note Constant Maturity 1 Year
ICE – Intercontinental Exchange, Inc.
IRS – Interest Rate Swap
JPM – JPMorgan
JPMCB – JPMorgan Chase Bank
JSC – Joint Stock Company
LIBOR – London Interbank Offered Rate
LIBOR01M – ICE LIBOR USD 1 Month
LIBOR03M – ICE LIBOR USD 3 Month
LIBOR06M – ICE LIBOR USD 6 Month
LIBOR12M – ICE LIBOR USD 12 Month
MASTR – Mortgage Asset Securitization Transactions, Inc.
Summary of abbreviations:  (continued)
MS – Morgan Stanley
PJSC – Private Joint Stock Company
REMIC – Real Estate Mortgage Investment Conduit
S.F. – Single Family
SOFR – Secured Overnight Financing Rate
SOFR01M – Secured Overnight Financing Rate 1 Month
SOFR03M – Secured Overnight Financing Rate 3 Month
SOFR06M – Secured Overnight Financing Rate 6 Month
SONIA – Sterling Overnight Indexed Average
TBA – To be announced
TBD – To be determined
TD – TD Bank
USBMMY3M – US Treasury 3 Month Bill Money Market Yield
USD – US Dollar
yr – Year
Summary of currencies:
AUD – Australian Dollar
BRL – Brazilian Real
CAD – Canadian Dollar
COP – Colombian Peso
DKK – Danish Krone
EUR – European Monetary Unit
GBP – British Pound Sterling
HUF – Hungarian Forint
INR – Indian Rupee
JPY – Japanese Yen
KRW – South Korean Won
MXN – Mexican Peso
PLN – Polish Zloty
USD – US Dollar
ZAR – South African Rand
 
48    NQ-OPTFI [12/22] 2/23 (2747704)