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Performance

Annual Returns as of May 31, 2026 (%)

1 Year
3 Year
5 Year
10 Year
Developing Markets Growth1
(SDMGX)
58.1026.588.7711.30
    MSCI Emerging Markets Index2
51.39
22.27
4.95
8.06
ESG Growth
Class I (IESGX)
22.4919.9311.11--
ESG Growth
Class S (SESGX)
22.1719.6310.83--
    MSCI World Index3
27.49
21.89
21.89
--
International Growth1
(SNGRX)
21.5515.966.328.19
    MSCI EAFE Index4
22.80
18.15
8.79
9.28
Large Cap Growth
(SNIGX)
26.1722.0812.9316.54
    Russell 1000® Growth Index5
28.66
26.45
15.73
18.86
Mid Cap Growth
(NBNGX)
21.8717.487.4411.57
    Russell Midcap® Growth Index6
7.88
17.46
6.86
12.74
Small Cap Growth7
(SSMGX)
33.5217.725.5511.20
    Russell 2000® Growth Index8
41.87
20.22
5.80
11.53
Balanced
(SIBAX)
19.3816.428.4410.67
    S&P 500® Index9
29.78
23.61
14.15
15.65
    Bloomberg Aggregate Bond Index10
5.13
3.95
0.17
1.70
Dividend Growth
Class I (SDVGX)
24.8019.0211.3013.12
Dividend Growth
Class S (SDVSX)
24.5718.7011.0112.84
    S&P 500® Index9
29.78
23.61
14.15
15.65
Global Dividend Growth1
Class I (GDGIX)
22.6619.0510.8311.88
Global Dividend Growth1
Class S (GDGSX)
22.3418.7410.5511.60
    MSCI World Index3
27.49
21.89
11.96
13.09
Small Cap Dividend Growth7
Class I (SSCDX)
33.6020.488.90--
Small Cap Dividend Growth7
Class S (SDFSX)
33.2420.178.62--
    Russell 2000® Index11
43.08
20.25
6.61
--
Minnesota Tax-Free Income12,13
(SMTFX)
10.374.761.062.11
    Bloomberg 5-Year Municipal Index14
4.28
3.53
1.15
1.85
Quality Income15
Class S (SQIFX)
4.384.812.922.38
Quality Income15
Class Y (SQIYX)
4.64------
    Bloomberg 1-3 Year Gov't/Credit Index16
3.72
4.47
2.08
2.05
Tax-Free Income12
Class S (SNTIX)
8.475.060.792.25
Tax-Free Income12
Class Y (SNTYX)
8.735.32----
    Bloomberg 5-Year Municipal Index14
4.28
3.53
1.15
1.85
U.S. Government Securities15
Class S (SNGVX)
4.363.841.381.67
U.S. Government Securities15
Class Y17 (SNGYX)
4.634.11----
    Bloomberg Intermediate Government Bond Index18
3.55
3.75
0.88
1.56