FOSIX vs. FONPX

Last updated Jun 23, 2026

FOSIX (Tributary Short-Intermediate Bond Fund) and FONPX (Tributary Nebraska Tax-Free Fund) are both mutual funds - FOSIX is a Short-Term Bond fund managed by Tributary Funds, while FONPX is a Municipal Bonds fund managed by Tributary Funds. Over the past 10 years, FOSIX returned 2.36%/yr vs 1.76%/yr for FONPX. At a 0.46 correlation, their price movements are largely independent. FOSIX charges 0.64%/yr vs 0.45%/yr for FONPX.

Performance

FOSIX vs. FONPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Tributary Short-Intermediate Bond Fund (FOSIX) and Tributary Nebraska Tax-Free Fund (FONPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FOSIX achieves a 0.39% return, which is significantly lower than FONPX's 1.14% return. Over the past 10 years, FOSIX has outperformed FONPX with an annualized return of 2.36%, while FONPX has yielded a comparatively lower 1.76% annualized return.

FOSIX

• 1D: 0.00%
• 1M: 0.22%
• YTD: 0.39%
• 6M: 0.71%
• 1Y: 3.44%
• 3Y*: 5.32%
• 5Y*: 2.47%
• 10Y*: 2.36%

FONPX

• 1D: 0.11%
• 1M: 1.32%
• YTD: 1.14%
• 6M: 1.58%
• 1Y: 5.63%
• 3Y*: 3.44%
• 5Y*: 1.06%
• 10Y*: 1.76%

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

FOSIX vs. FONPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FOSIX Tributary Short-Intermediate Bond Fund	0.39%	5.86%	5.47%	5.81%	-4.44%	-0.65%	3.97%	4.35%	1.01%	2.17%
FONPX Tributary Nebraska Tax-Free Fund	1.14%	5.26%	0.63%	4.76%	-6.17%	0.01%	4.68%	5.69%	1.29%	3.60%

Correlation

The correlation between FOSIX and FONPX is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.48
Correlation (3Y) Calculated over the trailing 3-year period	0.49
Correlation (5Y) Calculated over the trailing 5-year period	0.47
Correlation (10Y) Calculated over the trailing 10-year period	0.46
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016	0.46

Return for Risk

FOSIX vs. FONPX — Risk / Return Rank

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

FOSIX

FOSIX Risk / Return Rank: 59
FOSIX Sharpe Ratio Rank: 44
FOSIX Sortino Ratio Rank: 71
FOSIX Omega Ratio Rank: 69
FOSIX Calmar Ratio Rank: 55
FOSIX Martin Ratio Rank: 55

FONPX

FONPX Risk / Return Rank: 68
FONPX Sharpe Ratio Rank: 86
FONPX Sortino Ratio Rank: 89
FONPX Omega Ratio Rank: 92
FONPX Calmar Ratio Rank: 38
FONPX Martin Ratio Rank: 35

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.

FOSIX vs. FONPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Tributary Short-Intermediate Bond Fund (FOSIX) and Tributary Nebraska Tax-Free Fund (FONPX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	FOSIX	FONPX	Difference
Sharpe ratio: Return per unit of total volatility	1.81	2.59	-0.79
Sortino ratio: Return per unit of downside risk	3.20	4.03	-0.83
Omega ratio: Gain probability vs. loss probability	1.42	1.66	-0.24
Calmar ratio: Return relative to maximum drawdown	2.72	2.22	+0.50
Martin ratio: Return relative to average drawdown	10.40	7.39	+3.01

FOSIX vs. FONPX - Sharpe Ratio Comparison

The current FOSIX Sharpe Ratio is 1.81, which is lower than the FONPX Sharpe Ratio of 2.59. The chart below compares the historical Sharpe Ratios of FOSIX and FONPX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

FOSIX vs. FONPX - Drawdown Comparison

The maximum FOSIX drawdown since its inception was -6.58%, smaller than the maximum FONPX drawdown of -10.92%. Use the drawdown chart below to compare losses from any high point for FOSIX and FONPX.

Drawdown Indicators

	FOSIX	FONPX	Difference
Max Drawdown Largest peak-to-trough decline	-6.58%	-10.92%	+4.34%
Max Drawdown (1Y) Largest decline over 1 year	-1.31%	-2.54%	+1.23%
Max Drawdown (3Y) Largest decline over 3 years	-1.31%	-5.09%	+3.78%
Max Drawdown (5Y) Largest decline over 5 years	-6.57%	-10.92%	+4.35%
Max Drawdown (10Y) Largest decline over 10 years	-6.58%	-10.92%	+4.34%
Current Drawdown Current decline from peak	-0.44%	-0.58%	+0.14%
Average Drawdown Average peak-to-trough decline	-0.82%	-1.91%	+1.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.34%	0.76%	-0.42%

Volatility

FOSIX vs. FONPX - Volatility Comparison

Tributary Short-Intermediate Bond Fund (FOSIX) and Tributary Nebraska Tax-Free Fund (FONPX) have volatilities of 0.65% and 0.68%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FOSIX	FONPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.65%	0.68%	-0.03%
Volatility (6M) Calculated over the trailing 6-month period	1.51%	1.76%	-0.25%
Volatility (1Y) Calculated over the trailing 1-year period	1.98%	2.18%	-0.20%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.28%	3.24%	-0.96%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.95%	3.29%	-1.34%

FOSIX vs. FONPX - Expense Ratio Comparison

FOSIX has a 0.64% expense ratio, which is higher than FONPX's 0.45% expense ratio.

Dividends

FOSIX vs. FONPX - Dividend Comparison

FOSIX's dividend yield for the trailing twelve months is around 4.19%, more than FONPX's 2.62% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FONPX Tributary Nebraska Tax-Free Fund	2.62%	2.47%	2.39%	2.39%	1.81%	1.84%	1.92%	2.69%	3.36%	3.55%	3.10%	0.00%
FOSIX Tributary Short-Intermediate Bond Fund	4.19%	4.36%	4.30%	2.86%	2.30%	1.81%	2.19%	2.41%	2.20%	2.26%	2.04%	1.34%

Frequently Asked Questions

Can I hold both FOSIX and FONPX in my portfolio?

FOSIX and FONPX have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FOSIX or FONPX?

FONPX has higher volatility (0.68%) compared to FOSIX (0.65%). In terms of maximum drawdown, FOSIX dropped -6.58% vs FONPX's -10.92%.

Which has better risk-adjusted returns?

FONPX currently has the higher Sharpe Ratio (2.59 vs 1.81), 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.