SISIX vs. NAINX

Last updated Aug 1, 2026

SISIX (Virtus Seix Investment Grade Tax-Exempt Bond Fund) and NAINX (Virtus Tactical Allocation Fund) are both mutual funds - SISIX is a Municipal Bonds fund managed by Virtus, while NAINX is a Diversified Portfolio fund managed by Virtus. Over the past 10 years, SISIX returned 1.42%/yr vs 7.65%/yr for NAINX. Their 0.06 correlation means their historical movements had little consistent relationship. SISIX charges 0.69%/yr vs 1.00%/yr for NAINX.

Performance

SISIX vs. NAINX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Virtus Seix Investment Grade Tax-Exempt Bond Fund (SISIX) and Virtus Tactical Allocation Fund (NAINX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SISIX achieves a -0.16% return, which is significantly lower than NAINX's -0.04% return. Over the past 10 years, SISIX has underperformed NAINX with an annualized return of 1.42%, while NAINX has yielded a comparatively higher 7.65% annualized return.

SISIX

• 1D: -0.18%
• 1M: -1.80%
• 6M: -1.08%
• YTD: -0.16%
• 1Y: 3.25%
• 3Y*: 2.32%
• 5Y*: 0.25%
• 10Y*: 1.42%
• ALL TIME*: 4.10%

NAINX

• 1D: 0.73%
• 1M: -1.84%
• 6M: -0.45%
• YTD: -0.04%
• 1Y: 0.10%
• 3Y*: 8.14%
• 5Y*: 1.47%
• 10Y*: 7.65%
• ALL TIME*: 6.70%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
NAINX Virtus Tactical Allocation Fund	$0.00	$0.00	$0.00
SISIX Virtus Seix Investment Grade Tax-Exempt Bond Fund	$0.00	$0.00	$0.00

SISIX vs. NAINX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SISIX Virtus Seix Investment Grade Tax-Exempt Bond Fund	-0.16%	3.71%	0.76%	4.85%	-6.63%	-0.23%	5.59%	6.44%	0.24%	3.66%
NAINX Virtus Tactical Allocation Fund	-0.04%	6.83%	14.00%	22.38%	-28.48%	6.63%	31.47%	28.49%	-7.19%	19.84%

Correlation

The correlation between SISIX and NAINX is 0.36, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.36
Correlation (3Y) Balances recent behavior with more history.	0.27
Correlation (5Y) Shows whether the relationship held over a longer period.	0.23
Correlation (10Y) Provides a long-term view across more market conditions.	0.12
Correlation (All Time) Calculated using the full available price history since Jan 4, 1993	0.06

Over the past year, SISIX and NAINX have become more correlated (0.36) than their long-term average of 0.06, meaning their price movements have been converging.

Return for Risk

SISIX vs. NAINX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

SISIX

SISIX Risk / Return Rank: 58
SISIX Sharpe Ratio Rank: 72
SISIX Sortino Ratio Rank: 71
SISIX Omega Ratio Rank: 85
SISIX Calmar Ratio Rank: 33
SISIX Martin Ratio Rank: 30

NAINX

NAINX Risk / Return Rank: 4
NAINX Sharpe Ratio Rank: 4
NAINX Sortino Ratio Rank: 3
NAINX Omega Ratio Rank: 3
NAINX Calmar Ratio Rank: 4
NAINX Martin Ratio Rank: 4

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

SISIX vs. NAINX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Virtus Seix Investment Grade Tax-Exempt Bond Fund (SISIX) and Virtus Tactical Allocation Fund (NAINX). 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.

	SISIX	NAINX	Difference
Sharpe ratio: Return per unit of total volatility	1.75	-0.09	+1.84
Sortino ratio: Return per unit of downside risk	2.50	-0.06	+2.56
Omega ratio: Gain probability vs. loss probability	1.42	0.99	+0.42
Calmar ratio: Return relative to maximum drawdown	1.50	-0.09	+1.59
Martin ratio: Return relative to average drawdown	4.55	-0.28	+4.83

SISIX vs. NAINX - Sharpe Ratio Comparison

The current SISIX Sharpe Ratio is 1.75, which is higher than the NAINX Sharpe Ratio of -0.09. The chart below compares the historical Sharpe Ratios of SISIX and NAINX, 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

SISIX vs. NAINX - Drawdown Comparison

The maximum SISIX drawdown since its inception was -14.04%, smaller than the maximum NAINX drawdown of -36.50%. Use the drawdown chart below to compare losses from any high point for SISIX and NAINX.

Drawdown Indicators

	SISIX	NAINX	Difference
Max Drawdown Largest peak-to-trough decline	-14.04%	-36.50%	+22.46%
Max Drawdown (1Y) Largest decline over 1 year	-2.58%	-10.19%	+7.61%
Max Drawdown (3Y) Largest decline over 3 years	-3.58%	-11.79%	+8.21%
Max Drawdown (5Y) Largest decline over 5 years	-11.08%	-36.50%	+25.42%
Max Drawdown (10Y) Largest decline over 10 years	-11.08%	-36.50%	+25.42%
Current Drawdown Current decline from peak	-2.04%	-2.30%	+0.26%
Average Drawdown Average peak-to-trough decline	-1.46%	-5.26%	+3.80%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.85%	3.13%	-2.28%

Volatility

SISIX vs. NAINX - Volatility Comparison

The current volatility for Virtus Seix Investment Grade Tax-Exempt Bond Fund (SISIX) is 0.84%, while Virtus Tactical Allocation Fund (NAINX) has a volatility of 2.38%. This indicates that SISIX experiences smaller price fluctuations and is considered to be less risky than NAINX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SISIX	NAINX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.84%	2.38%	-1.54%
Volatility (6M) Calculated over the trailing 6-month period	1.89%	7.97%	-6.08%
Volatility (1Y) Calculated over the trailing 1-year period	2.22%	9.65%	-7.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.90%	13.78%	-10.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.35%	13.30%	-9.95%

SISIX vs. NAINX - Expense Ratio Comparison

SISIX has a 0.69% expense ratio, which is lower than NAINX's 1.00% expense ratio.

Dividends

SISIX vs. NAINX - Dividend Comparison

SISIX's dividend yield for the trailing twelve months is around 2.30%, less than NAINX's 16.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NAINX Virtus Tactical Allocation Fund	16.05%	15.87%	13.38%	1.94%	7.34%	7.54%	2.06%	2.24%	4.41%	2.61%	10.78%	7.34%
SISIX Virtus Seix Investment Grade Tax-Exempt Bond Fund	2.30%	2.51%	2.04%	2.03%	1.50%	1.98%	3.18%	3.94%	2.83%	2.47%	4.50%	3.42%

Frequently Asked Questions

Can I hold both SISIX and NAINX in my portfolio?

SISIX and NAINX have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SISIX or NAINX?

NAINX has higher volatility (2.38%) compared to SISIX (0.84%). In terms of maximum drawdown, SISIX dropped -14.04% vs NAINX's -36.50%.

Which has better risk-adjusted returns?

SISIX currently has the higher Sharpe Ratio (1.75 vs -0.09), 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.