FNDB vs. SWNTX

Last updated Jun 3, 2026

FNDB (Schwab Fundamental U.S. Broad Market Index ETF) and SWNTX (Schwab Tax-Free Bond Fund™) are both funds - FNDB is a Large Cap Value Equities fund tracking the RAFI Fundamental High Liquidity US All Index, while SWNTX is a Municipal Bonds fund managed by Charles Schwab. Over the past 10 years, FNDB returned 14.04%/yr vs 1.66%/yr for SWNTX. At a correlation of -0.07, they often move in opposite directions. FNDB charges 0.25%/yr vs 0.48%/yr for SWNTX.

Performance

FNDB vs. SWNTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Schwab Fundamental U.S. Broad Market Index ETF (FNDB) and Schwab Tax-Free Bond Fund™ (SWNTX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FNDB achieves a 14.63% return, which is significantly higher than SWNTX's 1.14% return. Over the past 10 years, FNDB has outperformed SWNTX with an annualized return of 14.04%, while SWNTX has yielded a comparatively lower 1.66% annualized return.

FNDB

• 1D: 0.50%
• 1M: 3.23%
• YTD: 14.63%
• 6M: 15.52%
• 1Y: 33.19%
• 3Y*: 20.60%
• 5Y*: 12.51%
• 10Y*: 14.04%

SWNTX

• 1D: -0.09%
• 1M: 0.37%
• YTD: 1.14%
• 6M: 1.63%
• 1Y: 6.47%
• 3Y*: 3.36%
• 5Y*: 0.57%
• 10Y*: 1.66%

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

FNDB vs. SWNTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FNDB Schwab Fundamental U.S. Broad Market Index ETF	14.63%	16.23%	16.25%	18.42%	-7.53%	31.55%	9.40%	28.88%	-8.20%	16.94%
SWNTX Schwab Tax-Free Bond Fund™	1.14%	4.20%	1.57%	5.09%	-8.57%	0.37%	4.45%	6.55%	0.88%	4.29%

Correlation

The correlation between FNDB and SWNTX is 0.13, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.13
Correlation (3Y) Calculated over the trailing 3-year period	0.15
Correlation (5Y) Calculated over the trailing 5-year period	0.10
Correlation (10Y) Calculated over the trailing 10-year period	-0.02
Correlation (All Time) Calculated using the full available price history since Aug 16, 2013	-0.07

The correlation between FNDB and SWNTX shifts across timeframes, from -0.07 (all time) to 0.15 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

FNDB vs. SWNTX — Risk / Return Rank

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

FNDB

FNDB Risk / Return Rank: 89
FNDB Sharpe Ratio Rank: 90
FNDB Sortino Ratio Rank: 91
FNDB Omega Ratio Rank: 89
FNDB Calmar Ratio Rank: 89
FNDB Martin Ratio Rank: 89

SWNTX

SWNTX Risk / Return Rank: 65
SWNTX Sharpe Ratio Rank: 79
SWNTX Sortino Ratio Rank: 86
SWNTX Omega Ratio Rank: 91
SWNTX Calmar Ratio Rank: 36
SWNTX Martin Ratio Rank: 33

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.

FNDB vs. SWNTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Schwab Fundamental U.S. Broad Market Index ETF (FNDB) and Schwab Tax-Free Bond Fund™ (SWNTX). 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.

	FNDB	SWNTX	Difference
Sharpe ratio Return per unit of total volatility	3.11	2.58	+0.53
Sortino ratio Return per unit of downside risk	4.34	4.09	+0.25
Omega ratio Gain probability vs. loss probability	1.57	1.66	-0.10
Calmar ratio Return relative to maximum drawdown	5.32	2.29	+3.03
Martin ratio Return relative to average drawdown	20.48	7.68	+12.80
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FNDB vs. SWNTX - Sharpe Ratio Comparison

The current FNDB Sharpe Ratio is 3.11, which is comparable to the SWNTX Sharpe Ratio of 2.58. The chart below compares the historical Sharpe Ratios of FNDB and SWNTX, 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

	FNDB	SWNTX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.11	2.58	+0.53
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.82	0.17	+0.65
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.81	0.47	+0.34
Sharpe Ratio (All Time) Calculated using the full available price history	0.79	1.16	-0.38

Drawdowns

FNDB vs. SWNTX - Drawdown Comparison

The maximum FNDB drawdown since its inception was -38.17%, which is greater than SWNTX's maximum drawdown of -13.26%. Use the drawdown chart below to compare losses from any high point for FNDB and SWNTX.

Drawdown Indicators

	FNDB	SWNTX	Difference
Max Drawdown Largest peak-to-trough decline	-38.17%	-13.26%	-24.91%
Max Drawdown (1Y) Largest decline over 1 year	-6.29%	-2.88%	-3.41%
Max Drawdown (3Y) Largest decline over 3 years	-16.83%	-4.85%	-11.98%
Max Drawdown (5Y) Largest decline over 5 years	-19.29%	-13.26%	-6.03%
Max Drawdown (10Y) Largest decline over 10 years	-38.17%	-13.26%	-24.91%
Current Drawdown Current decline from peak	0.00%	-0.97%	+0.97%
Average Drawdown Average peak-to-trough decline	-3.66%	-1.89%	-1.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.63%	0.86%	+0.77%

Volatility

FNDB vs. SWNTX - Volatility Comparison

Schwab Fundamental U.S. Broad Market Index ETF (FNDB) has a higher volatility of 2.51% compared to Schwab Tax-Free Bond Fund™ (SWNTX) at 0.94%. This indicates that FNDB's price experiences larger fluctuations and is considered to be riskier than SWNTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FNDB	SWNTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.51%	0.94%	+1.57%
Volatility (6M) Calculated over the trailing 6-month period	7.62%	1.86%	+5.76%
Volatility (1Y) Calculated over the trailing 1-year period	10.72%	2.44%	+8.28%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.36%	3.49%	+11.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.48%	3.57%	+13.91%

FNDB vs. SWNTX - Expense Ratio Comparison

FNDB has a 0.25% expense ratio, which is lower than SWNTX's 0.48% expense ratio.

Dividends

FNDB vs. SWNTX - Dividend Comparison

FNDB's dividend yield for the trailing twelve months is around 1.44%, less than SWNTX's 3.46% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FNDB Schwab Fundamental U.S. Broad Market Index ETF	1.44%	1.62%	1.74%	1.80%	1.98%	1.63%	2.15%	2.23%	2.41%	1.91%	2.06%	2.26%
SWNTX Schwab Tax-Free Bond Fund™	3.46%	3.78%	3.20%	2.54%	1.73%	1.62%	2.34%	2.58%	2.41%	2.21%	3.14%	2.71%

Frequently Asked Questions

Can I hold both FNDB and SWNTX in my portfolio?

FNDB and SWNTX have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FNDB or SWNTX?

FNDB has higher volatility (2.51%) compared to SWNTX (0.94%). In terms of maximum drawdown, FNDB dropped -38.17% vs SWNTX's -13.26%.

Which has better risk-adjusted returns?

FNDB currently has the higher Sharpe Ratio (3.11 vs 2.58), 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.