IDIVX vs. VNDFX

Last updated Jun 5, 2026

IDIVX (Integrity Dividend Harvest Fund) and VNDFX (Viking Tax-Free Fund for North Dakota) are both mutual funds - IDIVX is a Large Cap Value Equities fund managed by IntegrityVikingFunds, while VNDFX is a Municipal Bonds fund managed by IntegrityVikingFunds. Over the past 10 years, IDIVX returned 11.63%/yr vs 0.68%/yr for VNDFX. At a correlation of -0.04, they often move in opposite directions. IDIVX charges 0.95%/yr vs 0.98%/yr for VNDFX.

Performance

IDIVX vs. VNDFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Integrity Dividend Harvest Fund (IDIVX) and Viking Tax-Free Fund for North Dakota (VNDFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IDIVX achieves a 16.01% return, which is significantly higher than VNDFX's 1.85% return. Over the past 10 years, IDIVX has outperformed VNDFX with an annualized return of 11.63%, while VNDFX has yielded a comparatively lower 0.68% annualized return.

IDIVX

• 1D: -0.65%
• 1M: 4.13%
• YTD: 16.01%
• 6M: 15.87%
• 1Y: 32.33%
• 3Y*: 21.34%
• 5Y*: 14.30%
• 10Y*: 11.63%

VNDFX

• 1D: 0.00%
• 1M: 0.48%
• YTD: 1.85%
• 6M: 2.24%
• 1Y: 7.46%
• 3Y*: 2.15%
• 5Y*: -0.62%
• 10Y*: 0.68%

*Multi-year figures are annualized to reflect compound growth (CAGR)

IDIVX vs. VNDFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IDIVX Integrity Dividend Harvest Fund	16.01%	17.39%	21.13%	5.06%	2.13%	24.10%	-1.04%	22.97%	-5.19%	11.10%
VNDFX Viking Tax-Free Fund for North Dakota	1.85%	3.02%	-1.96%	4.65%	-9.89%	0.42%	2.90%	5.12%	0.72%	3.35%

Correlation

The correlation between IDIVX and VNDFX is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.16
Correlation (3Y) Calculated over the trailing 3-year period	0.16
Correlation (5Y) Calculated over the trailing 5-year period	0.10
Correlation (10Y) Calculated over the trailing 10-year period	0.01
Correlation (All Time) Calculated using the full available price history since May 2, 2012	-0.04

The correlation between IDIVX and VNDFX shifts across timeframes, from -0.04 (all time) to 0.16 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

IDIVX vs. VNDFX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

IDIVX

IDIVX Risk / Return Rank: 92
IDIVX Sharpe Ratio Rank: 94
IDIVX Sortino Ratio Rank: 93
IDIVX Omega Ratio Rank: 85
IDIVX Calmar Ratio Rank: 94
IDIVX Martin Ratio Rank: 96

VNDFX

VNDFX Risk / Return Rank: 81
VNDFX Sharpe Ratio Rank: 92
VNDFX Sortino Ratio Rank: 94
VNDFX Omega Ratio Rank: 97
VNDFX Calmar Ratio Rank: 60
VNDFX Martin Ratio Rank: 61

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

IDIVX vs. VNDFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Integrity Dividend Harvest Fund (IDIVX) and Viking Tax-Free Fund for North Dakota (VNDFX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	IDIVX	VNDFX	Difference
Sharpe ratio: Return per unit of total volatility	3.23	3.07	+0.15
Sortino ratio: Return per unit of downside risk	4.72	4.95	-0.24
Omega ratio: Gain probability vs. loss probability	1.59	1.99	-0.40
Calmar ratio: Return relative to maximum drawdown	5.57	2.91	+2.66
Martin ratio: Return relative to average drawdown	24.34	11.92	+12.42
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IDIVX vs. VNDFX - Sharpe Ratio Comparison

The current IDIVX Sharpe Ratio is 3.23, which is comparable to the VNDFX Sharpe Ratio of 3.07. The chart below compares the historical Sharpe Ratios of IDIVX and VNDFX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	IDIVX	VNDFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.23	3.07	+0.15
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.03	-0.13	+1.16
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.78	0.17	+0.61
Sharpe Ratio (All Time) Calculated using the full available price history	0.76	0.45	+0.31

Drawdowns

IDIVX vs. VNDFX - Drawdown Comparison

The maximum IDIVX drawdown since its inception was -31.64%, which is greater than VNDFX's maximum drawdown of -14.80%. Use the drawdown chart below to compare losses from any high point for IDIVX and VNDFX.

Drawdown Indicators

	IDIVX	VNDFX	Difference
Max Drawdown Largest peak-to-trough decline	-31.64%	-14.80%	-16.84%
Max Drawdown (1Y) Largest decline over 1 year	-5.72%	-2.57%	-3.15%
Max Drawdown (3Y) Largest decline over 3 years	-15.37%	-8.01%	-7.36%
Max Drawdown (5Y) Largest decline over 5 years	-16.34%	-14.80%	-1.54%
Max Drawdown (10Y) Largest decline over 10 years	-31.64%	-14.80%	-16.84%
Current Drawdown Current decline from peak	-0.65%	-3.45%	+2.80%
Average Drawdown Average peak-to-trough decline	-3.36%	-2.78%	-0.58%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.31%	0.63%	+0.68%

Volatility

IDIVX vs. VNDFX - Volatility Comparison

Integrity Dividend Harvest Fund (IDIVX) has a higher volatility of 3.35% compared to Viking Tax-Free Fund for North Dakota (VNDFX) at 0.88%. This indicates that IDIVX's price experiences larger fluctuations and is considered to be riskier than VNDFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IDIVX	VNDFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.35%	0.88%	+2.47%
Volatility (6M) Calculated over the trailing 6-month period	7.62%	1.82%	+5.80%
Volatility (1Y) Calculated over the trailing 1-year period	9.88%	2.44%	+7.44%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.98%	4.61%	+9.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.95%	4.04%	+10.91%

IDIVX vs. VNDFX - Expense Ratio Comparison

IDIVX has a 0.95% expense ratio, which is lower than VNDFX's 0.98% expense ratio.

Dividends

IDIVX vs. VNDFX - Dividend Comparison

IDIVX's dividend yield for the trailing twelve months is around 6.34%, more than VNDFX's 3.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IDIVX Integrity Dividend Harvest Fund	6.34%	7.19%	8.89%	3.13%	3.59%	2.83%	3.67%	7.27%	10.21%	8.31%	1.11%	0.00%
VNDFX Viking Tax-Free Fund for North Dakota	3.00%	3.03%	2.93%	2.30%	1.86%	1.69%	2.07%	2.72%	2.58%	2.71%	2.62%	2.38%

Frequently Asked Questions

Can I hold both IDIVX and VNDFX in my portfolio?

IDIVX and VNDFX have a correlation of 0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IDIVX or VNDFX?

IDIVX has higher volatility (3.35%) compared to VNDFX (0.88%). In terms of maximum drawdown, IDIVX dropped -31.64% vs VNDFX's -14.80%.

Which has better risk-adjusted returns?

IDIVX currently has the higher Sharpe Ratio (3.23 vs 3.07), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.