BOC vs. GUNR

Last updated Jun 9, 2026

BOC (Boston Omaha Corp) is a stock, while GUNR (FlexShares Morningstar Global Upstream Natural Resources Index Fund) is Commodity Producers Equities fund tracking the Morningstar Global Upstream Natural Resources Index. Over the past 5 years, BOC returned -16.46%/yr vs 9.27%/yr for GUNR. At a 0.31 correlation, their price movements are largely independent.

Performance

BOC vs. GUNR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Boston Omaha Corp (BOC) and FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BOC achieves a 8.16% return, which is significantly lower than GUNR's 14.67% return.

BOC

• 1D: -2.55%
• 1M: 17.78%
• YTD: 8.16%
• 6M: 0.53%
• 1Y: -5.17%
• 3Y*: -12.35%
• 5Y*: -16.46%
• 10Y*: —

GUNR

• 1D: -0.02%
• 1M: -3.68%
• YTD: 14.67%
• 6M: 18.35%
• 1Y: 35.94%
• 3Y*: 12.40%
• 5Y*: 9.27%
• 10Y*: 10.77%

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

BOC vs. GUNR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
BOC Boston Omaha Corp	8.16%	-12.76%	-9.85%	-40.64%	-7.76%	3.91%	31.42%	-10.09%	-27.76%	145.38%
GUNR FlexShares Morningstar Global Upstream Natural Resources Index Fund	14.67%	30.03%	-8.37%	-2.40%	14.83%	26.06%	0.46%	18.41%	-9.42%	17.56%

Correlation

The correlation between BOC and GUNR is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.19
Correlation (3Y) Calculated over the trailing 3-year period	0.35
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (All Time) Calculated using the full available price history since Jun 19, 2017	0.31

The correlation between BOC and GUNR shifts across timeframes, from 0.19 (1 year) to 0.35 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

BOC vs. GUNR — Risk / Return Rank

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

BOC

BOC Risk / Return Rank: 33
BOC Sharpe Ratio Rank: 35
BOC Sortino Ratio Rank: 31
BOC Omega Ratio Rank: 31
BOC Calmar Ratio Rank: 35
BOC Martin Ratio Rank: 34

GUNR

GUNR Risk / Return Rank: 82
GUNR Sharpe Ratio Rank: 80
GUNR Sortino Ratio Rank: 73
GUNR Omega Ratio Rank: 77
GUNR Calmar Ratio Rank: 91
GUNR Martin Ratio Rank: 90

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.

BOC vs. GUNR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Boston Omaha Corp (BOC) and FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR). 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.

	BOC	GUNR	Difference
Sharpe ratio: Return per unit of total volatility	-0.16	2.32	-2.48
Sortino ratio: Return per unit of downside risk	-0.01	2.93	-2.94
Omega ratio: Gain probability vs. loss probability	1.00	1.41	-0.41
Calmar ratio: Return relative to maximum drawdown	-0.22	5.30	-5.52
Martin ratio: Return relative to average drawdown	-0.44	19.13	-19.56
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BOC vs. GUNR - Sharpe Ratio Comparison

The current BOC Sharpe Ratio is -0.16, which is lower than the GUNR Sharpe Ratio of 2.32. The chart below compares the historical Sharpe Ratios of BOC and GUNR, 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

	BOC	GUNR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.16	2.32	-2.48
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.47	0.49	-0.96
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.53	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.00	0.31	-0.31

Drawdowns

BOC vs. GUNR - Drawdown Comparison

The maximum BOC drawdown since its inception was -76.58%, which is greater than GUNR's maximum drawdown of -45.64%. Use the drawdown chart below to compare losses from any high point for BOC and GUNR.

Drawdown Indicators

	BOC	GUNR	Difference
Max Drawdown Largest peak-to-trough decline	-76.58%	-45.64%	-30.94%
Max Drawdown (1Y) Largest decline over 1 year	-23.46%	-6.81%	-16.65%
Max Drawdown (3Y) Largest decline over 3 years	-44.53%	-19.59%	-24.94%
Max Drawdown (5Y) Largest decline over 5 years	-74.13%	-24.06%	-50.07%
Max Drawdown (10Y) Largest decline over 10 years	—	-43.04%	—
Current Drawdown Current decline from peak	-71.67%	-6.26%	-65.41%
Average Drawdown Average peak-to-trough decline	-46.08%	-10.40%	-35.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.84%	1.88%	+9.96%

Volatility

BOC vs. GUNR - Volatility Comparison

Boston Omaha Corp (BOC) has a higher volatility of 15.59% compared to FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR) at 5.20%. This indicates that BOC's price experiences larger fluctuations and is considered to be riskier than GUNR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	BOC	GUNR	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.59%	5.20%	+10.39%
Volatility (6M) Calculated over the trailing 6-month period	22.60%	13.06%	+9.54%
Volatility (1Y) Calculated over the trailing 1-year period	32.26%	15.61%	+16.65%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.21%	19.04%	+16.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.85%	20.45%	+22.40%

Dividends

BOC vs. GUNR - Dividend Comparison

BOC has not paid dividends to shareholders, while GUNR's dividend yield for the trailing twelve months is around 2.33%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
BOC Boston Omaha Corp	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
GUNR FlexShares Morningstar Global Upstream Natural Resources Index Fund	2.33%	2.81%	3.39%	3.55%	4.12%	3.61%	2.79%	3.25%	3.27%	2.00%	1.73%	4.50%

Frequently Asked Questions

Can I hold both BOC and GUNR in my portfolio?

BOC and GUNR have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BOC or GUNR?

BOC has higher volatility (15.59%) compared to GUNR (5.20%). In terms of maximum drawdown, BOC dropped -76.58% vs GUNR's -45.64%.

Which has better risk-adjusted returns?

GUNR currently has the higher Sharpe Ratio (2.32 vs -0.16), 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.