SWRSX vs. PRAIX

Last updated Jun 4, 2026

SWRSX (Schwab Treasury Inflation Protected Securities Index Fund) and PRAIX (PIMCO Long-Term Real Return Fund) are both Inflation-Protected Bonds funds. Over the past 10 years, SWRSX returned 2.66%/yr vs 1.03%/yr for PRAIX. Their correlation of 0.89 suggests significant overlap in exposure. SWRSX charges 0.05%/yr vs 0.50%/yr for PRAIX.

Performance

SWRSX vs. PRAIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Schwab Treasury Inflation Protected Securities Index Fund (SWRSX) and PIMCO Long-Term Real Return Fund (PRAIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SWRSX achieves a 1.72% return, which is significantly higher than PRAIX's 0.50% return. Over the past 10 years, SWRSX has outperformed PRAIX with an annualized return of 2.66%, while PRAIX has yielded a comparatively lower 1.03% annualized return.

SWRSX

• 1D: 0.00%
• 1M: 0.10%
• YTD: 1.72%
• 6M: 1.28%
• 1Y: 5.28%
• 3Y*: 4.09%
• 5Y*: 1.23%
• 10Y*: 2.66%

PRAIX

• 1D: 0.00%
• 1M: 0.80%
• YTD: 0.50%
• 6M: -0.48%
• 1Y: 5.97%
• 3Y*: -0.14%
• 5Y*: -5.57%
• 10Y*: 1.03%

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

SWRSX vs. PRAIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SWRSX Schwab Treasury Inflation Protected Securities Index Fund	1.72%	6.84%	1.95%	3.80%	-12.01%	5.83%	10.88%	8.38%	-1.32%	2.69%
PRAIX PIMCO Long-Term Real Return Fund	0.50%	5.26%	-4.11%	0.14%	-33.83%	7.21%	27.16%	19.62%	-6.49%	8.84%

Correlation

The correlation between SWRSX and PRAIX is 0.85, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (10Y) Calculated over the trailing 10-year period	0.88
Correlation (All Time) Calculated using the full available price history since Apr 4, 2006	0.89

The correlation between SWRSX and PRAIX has been stable across timeframes, ranging from 0.85 to 0.91 - a consistent structural relationship.

Return for Risk

SWRSX vs. PRAIX — Risk / Return Rank

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

SWRSX

SWRSX Risk / Return Rank: 37
SWRSX Sharpe Ratio Rank: 32
SWRSX Sortino Ratio Rank: 35
SWRSX Omega Ratio Rank: 31
SWRSX Calmar Ratio Rank: 51
SWRSX Martin Ratio Rank: 38

PRAIX

PRAIX Risk / Return Rank: 7
PRAIX Sharpe Ratio Rank: 6
PRAIX Sortino Ratio Rank: 6
PRAIX Omega Ratio Rank: 5
PRAIX Calmar Ratio Rank: 9
PRAIX Martin Ratio Rank: 8

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.

SWRSX vs. PRAIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Schwab Treasury Inflation Protected Securities Index Fund (SWRSX) and PIMCO Long-Term Real Return Fund (PRAIX). 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.

	SWRSX	PRAIX	Difference
Sharpe ratio Return per unit of total volatility	1.61	0.50	+1.11
Sortino ratio Return per unit of downside risk	2.47	0.78	+1.69
Omega ratio Gain probability vs. loss probability	1.30	1.09	+0.21
Calmar ratio Return relative to maximum drawdown	2.73	0.94	+1.79
Martin ratio Return relative to average drawdown	8.25	2.24	+6.00
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SWRSX vs. PRAIX - Sharpe Ratio Comparison

The current SWRSX Sharpe Ratio is 1.61, which is higher than the PRAIX Sharpe Ratio of 0.50. The chart below compares the historical Sharpe Ratios of SWRSX and PRAIX, 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

	SWRSX	PRAIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.61	0.50	+1.11
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.20	-0.34	+0.55
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.50	0.07	+0.43
Sharpe Ratio (All Time) Calculated using the full available price history	0.58	0.37	+0.20

Drawdowns

SWRSX vs. PRAIX - Drawdown Comparison

The maximum SWRSX drawdown since its inception was -14.29%, smaller than the maximum PRAIX drawdown of -43.52%. Use the drawdown chart below to compare losses from any high point for SWRSX and PRAIX.

Drawdown Indicators

	SWRSX	PRAIX	Difference
Max Drawdown Largest peak-to-trough decline	-14.29%	-43.52%	+29.23%
Max Drawdown (1Y) Largest decline over 1 year	-1.90%	-7.62%	+5.72%
Max Drawdown (3Y) Largest decline over 3 years	-4.46%	-16.71%	+12.25%
Max Drawdown (5Y) Largest decline over 5 years	-14.29%	-43.52%	+29.23%
Max Drawdown (10Y) Largest decline over 10 years	-14.29%	-43.52%	+29.23%
Current Drawdown Current decline from peak	-0.10%	-33.87%	+33.77%
Average Drawdown Average peak-to-trough decline	-3.72%	-10.25%	+6.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.63%	3.18%	-2.55%

Volatility

SWRSX vs. PRAIX - Volatility Comparison

The current volatility for Schwab Treasury Inflation Protected Securities Index Fund (SWRSX) is 0.86%, while PIMCO Long-Term Real Return Fund (PRAIX) has a volatility of 3.13%. This indicates that SWRSX experiences smaller price fluctuations and is considered to be less risky than PRAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SWRSX	PRAIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.86%	3.13%	-2.27%
Volatility (6M) Calculated over the trailing 6-month period	2.20%	6.95%	-4.75%
Volatility (1Y) Calculated over the trailing 1-year period	3.26%	9.77%	-6.51%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.04%	16.33%	-10.29%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.37%	14.98%	-9.61%

SWRSX vs. PRAIX - Expense Ratio Comparison

SWRSX has a 0.05% expense ratio, which is lower than PRAIX's 0.50% expense ratio.

Dividends

SWRSX vs. PRAIX - Dividend Comparison

SWRSX's dividend yield for the trailing twelve months is around 3.78%, less than PRAIX's 5.70% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PRAIX PIMCO Long-Term Real Return Fund	5.70%	5.72%	4.64%	4.75%	12.40%	15.85%	37.88%	7.20%	3.06%	2.76%	1.54%	2.05%
SWRSX Schwab Treasury Inflation Protected Securities Index Fund	3.78%	4.20%	3.68%	3.11%	7.95%	4.45%	1.33%	2.20%	2.87%	1.75%	1.81%	1.06%

Frequently Asked Questions

Can I hold both SWRSX and PRAIX in my portfolio?

SWRSX and PRAIX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SWRSX or PRAIX?

PRAIX has higher volatility (3.13%) compared to SWRSX (0.86%). In terms of maximum drawdown, SWRSX dropped -14.29% vs PRAIX's -43.52%.

Which has better risk-adjusted returns?

SWRSX currently has the higher Sharpe Ratio (1.61 vs 0.50), 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.