FNDX vs. PFIIX

Last updated Jun 12, 2026

FNDX (Schwab Fundamental U.S. Large Company Index ETF) and PFIIX (PIMCO Low Duration Income Fund) are both funds - FNDX is a Large Cap Value Equities fund tracking the RAFI Fundamental High Liquidity US Large Index, while PFIIX is a Short-Term Bond fund managed by PIMCO. Over the past 10 years, FNDX returned 14.32%/yr vs 4.78%/yr for PFIIX. At a 0.39 correlation, their price movements are largely independent. FNDX charges 0.25%/yr vs 0.50%/yr for PFIIX.

Performance

FNDX vs. PFIIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Schwab Fundamental U.S. Large Company Index ETF (FNDX) and PIMCO Low Duration Income Fund (PFIIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FNDX achieves a 14.46% return, which is significantly higher than PFIIX's 1.10% return. Over the past 10 years, FNDX has outperformed PFIIX with an annualized return of 14.32%, while PFIIX has yielded a comparatively lower 4.78% annualized return.

FNDX

• 1D: 1.47%
• 1M: 1.97%
• YTD: 14.46%
• 6M: 13.13%
• 1Y: 30.72%
• 3Y*: 20.21%
• 5Y*: 12.91%
• 10Y*: 14.32%

PFIIX

• 1D: 0.00%
• 1M: 0.28%
• YTD: 1.10%
• 6M: 1.56%
• 1Y: 6.73%
• 3Y*: 7.37%
• 5Y*: 3.98%
• 10Y*: 4.78%

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

FNDX vs. PFIIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FNDX Schwab Fundamental U.S. Large Company Index ETF	14.46%	16.94%	16.77%	18.23%	-6.92%	31.73%	9.12%	28.65%	-7.30%	17.12%
PFIIX PIMCO Low Duration Income Fund	1.10%	9.56%	6.58%	7.78%	-5.29%	2.38%	4.84%	6.72%	1.56%	6.05%

Correlation

The correlation between FNDX and PFIIX is 0.43, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.43
Correlation (3Y) Calculated over the trailing 3-year period	0.36
Correlation (5Y) Calculated over the trailing 5-year period	0.43
Correlation (10Y) Calculated over the trailing 10-year period	0.37
Correlation (All Time) Calculated using the full available price history since Aug 15, 2013	0.39

Return for Risk

FNDX vs. PFIIX — Risk / Return Rank

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

FNDX

FNDX Risk / Return Rank: 93
FNDX Sharpe Ratio Rank: 94
FNDX Sortino Ratio Rank: 93
FNDX Omega Ratio Rank: 92
FNDX Calmar Ratio Rank: 92
FNDX Martin Ratio Rank: 92

PFIIX

PFIIX Risk / Return Rank: 87
PFIIX Sharpe Ratio Rank: 87
PFIIX Sortino Ratio Rank: 91
PFIIX Omega Ratio Rank: 90
PFIIX Calmar Ratio Rank: 81
PFIIX Martin Ratio Rank: 86

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.

FNDX vs. PFIIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Schwab Fundamental U.S. Large Company Index ETF (FNDX) and PIMCO Low Duration Income Fund (PFIIX). 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.

	FNDX	PFIIX	Difference
Sharpe ratio: Return per unit of total volatility	2.96	2.55	+0.42
Sortino ratio: Return per unit of downside risk	4.11	4.17	-0.06
Omega ratio: Gain probability vs. loss probability	1.54	1.61	-0.07
Calmar ratio: Return relative to maximum drawdown	5.09	3.27	+1.82
Martin ratio: Return relative to average drawdown	19.73	13.92	+5.81

FNDX vs. PFIIX - Sharpe Ratio Comparison

The current FNDX Sharpe Ratio is 2.96, which is comparable to the PFIIX Sharpe Ratio of 2.55. The chart below compares the historical Sharpe Ratios of FNDX and PFIIX, 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

FNDX vs. PFIIX - Drawdown Comparison

The maximum FNDX drawdown since its inception was -37.72%, which is greater than PFIIX's maximum drawdown of -28.35%. Use the drawdown chart below to compare losses from any high point for FNDX and PFIIX.

Drawdown Indicators

	FNDX	PFIIX	Difference
Max Drawdown Largest peak-to-trough decline	-37.72%	-28.35%	-9.37%
Max Drawdown (1Y) Largest decline over 1 year	-6.06%	-2.16%	-3.90%
Max Drawdown (3Y) Largest decline over 3 years	-16.30%	-2.23%	-14.07%
Max Drawdown (5Y) Largest decline over 5 years	-19.06%	-8.84%	-10.22%
Max Drawdown (10Y) Largest decline over 10 years	-37.72%	-11.72%	-26.00%
Current Drawdown Current decline from peak	-0.77%	-0.36%	-0.41%
Average Drawdown Average peak-to-trough decline	-3.55%	-2.60%	-0.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.56%	0.50%	+1.06%

Volatility

FNDX vs. PFIIX - Volatility Comparison

Schwab Fundamental U.S. Large Company Index ETF (FNDX) has a higher volatility of 3.07% compared to PIMCO Low Duration Income Fund (PFIIX) at 1.03%. This indicates that FNDX's price experiences larger fluctuations and is considered to be riskier than PFIIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FNDX	PFIIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.07%	1.03%	+2.04%
Volatility (6M) Calculated over the trailing 6-month period	7.63%	2.20%	+5.43%
Volatility (1Y) Calculated over the trailing 1-year period	10.42%	2.77%	+7.65%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.22%	3.18%	+12.04%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.51%	3.17%	+14.34%

FNDX vs. PFIIX - Expense Ratio Comparison

FNDX has a 0.25% expense ratio, which is lower than PFIIX's 0.50% expense ratio.

Dividends

FNDX vs. PFIIX - Dividend Comparison

FNDX's dividend yield for the trailing twelve months is around 1.45%, less than PFIIX's 5.29% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FNDX Schwab Fundamental U.S. Large Company Index ETF	1.45%	1.63%	1.76%	1.82%	2.07%	1.64%	2.29%	2.23%	2.40%	1.86%	2.01%	2.01%
PFIIX PIMCO Low Duration Income Fund	5.29%	5.49%	5.37%	4.97%	5.35%	3.06%	3.44%	4.74%	3.22%	3.13%	3.75%	5.36%

Frequently Asked Questions

Can I hold both FNDX and PFIIX in my portfolio?

FNDX and PFIIX have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FNDX or PFIIX?

FNDX has higher volatility (3.07%) compared to PFIIX (1.03%). In terms of maximum drawdown, FNDX dropped -37.72% vs PFIIX's -28.35%.

Which has better risk-adjusted returns?

FNDX currently has the higher Sharpe Ratio (2.96 vs 2.55), 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.