FLDR vs. SPSB

Last updated Apr 1, 2026

Compare and contrast key facts about Fidelity Low Duration Bond Factor ETF (FLDR) and SPDR Portfolio Short Term Corporate Bond ETF (SPSB).

FLDR and SPSB are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. FLDR is a passively managed fund by Fidelity that tracks the performance of the Fidelity Low Duration Investment Grade Factor Index. It was launched on Jun 12, 2018. SPSB is a passively managed fund by State Street that tracks the performance of the Bloomberg Barclays U.S. 1-3 Year Corporate Bond Index. It was launched on Dec 16, 2009. Both FLDR and SPSB are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

FLDR vs. SPSB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Low Duration Bond Factor ETF (FLDR) and SPDR Portfolio Short Term Corporate Bond ETF (SPSB). The values are adjusted to include any dividend payments, if applicable.

FLDR vs. SPSB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
FLDR Fidelity Low Duration Bond Factor ETF	0.65%	5.41%	5.71%	6.32%	-0.33%	-0.18%	2.01%	4.52%	0.94%
SPSB SPDR Portfolio Short Term Corporate Bond ETF	0.28%	5.86%	5.25%	5.60%	-3.31%	-0.20%	3.83%	5.21%	1.53%

Returns By Period

In the year-to-date period, FLDR achieves a 0.65% return, which is significantly higher than SPSB's 0.28% return.

FLDR

• 1D: 0.12%
• 1M: -0.15%
• YTD: 0.65%
• 6M: 1.86%
• 1Y: 4.49%
• 3Y*: 5.52%
• 5Y*: 3.58%
• 10Y*: —

SPSB

• 1D: 0.17%
• 1M: -0.48%
• YTD: 0.28%
• 6M: 1.46%
• 1Y: 4.49%
• 3Y*: 5.17%
• 5Y*: 2.64%
• 10Y*: 2.61%

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

FLDR vs. SPSB - Expense Ratio Comparison

FLDR has a 0.15% expense ratio, which is higher than SPSB's 0.07% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

FLDR

Fidelity Low Duration Bond Factor ETF

SPSB

SPDR Portfolio Short Term Corporate Bond ETF

Return for Risk

FLDR vs. SPSB — Risk / Return Rank

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

FLDR

FLDR Risk / Return Rank: 98
FLDR Sharpe Ratio Rank: 99
FLDR Sortino Ratio Rank: 99
FLDR Omega Ratio Rank: 99
FLDR Calmar Ratio Rank: 98
FLDR Martin Ratio Rank: 98

SPSB

SPSB Risk / Return Rank: 98
SPSB Sharpe Ratio Rank: 98
SPSB Sortino Ratio Rank: 98
SPSB Omega Ratio Rank: 98
SPSB Calmar Ratio Rank: 97
SPSB Martin Ratio Rank: 97

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.

FLDR vs. SPSB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Low Duration Bond Factor ETF (FLDR) and SPDR Portfolio Short Term Corporate Bond ETF (SPSB). 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.

	FLDR	SPSB	Difference
Sharpe ratio Return per unit of total volatility	4.59	3.01	+1.58
Sortino ratio Return per unit of downside risk	6.89	4.62	+2.27
Omega ratio Gain probability vs. loss probability	2.22	1.68	+0.54
Calmar ratio Return relative to maximum drawdown	5.98	5.22	+0.76
Martin ratio Return relative to average drawdown	31.24	21.58	+9.66
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FLDR vs. SPSB - Sharpe Ratio Comparison

The current FLDR Sharpe Ratio is 4.59, which is higher than the SPSB Sharpe Ratio of 3.01. The chart below compares the historical Sharpe Ratios of FLDR and SPSB, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	FLDR	SPSB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	4.59	3.01	+1.58
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	2.98	1.35	+1.63
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.86	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.60	0.86	-0.26

Correlation

The correlation between FLDR and SPSB is 0.43, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

FLDR vs. SPSB - Dividend Comparison

FLDR's dividend yield for the trailing twelve months is around 4.54%, which matches SPSB's 4.50% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FLDR Fidelity Low Duration Bond Factor ETF	4.54%	4.66%	5.50%	5.28%	2.09%	0.51%	1.22%	2.69%	1.38%	0.00%	0.00%	0.00%
SPSB SPDR Portfolio Short Term Corporate Bond ETF	4.50%	4.55%	4.85%	4.05%	1.92%	1.19%	1.94%	2.77%	2.36%	1.94%	1.65%	1.43%

Drawdowns

FLDR vs. SPSB - Drawdown Comparison

The maximum FLDR drawdown since its inception was -12.23%, roughly equal to the maximum SPSB drawdown of -11.75%. Use the drawdown chart below to compare losses from any high point for FLDR and SPSB.

Drawdown Indicators

	FLDR	SPSB	Difference
Max Drawdown Largest peak-to-trough decline	-12.23%	-11.75%	-0.48%
Max Drawdown (1Y) Largest decline over 1 year	-0.76%	-0.87%	+0.11%
Max Drawdown (5Y) Largest decline over 5 years	-2.33%	-5.96%	+3.63%
Max Drawdown (10Y) Largest decline over 10 years	—	-11.75%	—
Current Drawdown Current decline from peak	-0.15%	-0.48%	+0.33%
Average Drawdown Average peak-to-trough decline	-0.36%	-0.55%	+0.19%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.14%	0.21%	-0.07%

Volatility

FLDR vs. SPSB - Volatility Comparison

The current volatility for Fidelity Low Duration Bond Factor ETF (FLDR) is 0.42%, while SPDR Portfolio Short Term Corporate Bond ETF (SPSB) has a volatility of 0.64%. This indicates that FLDR experiences smaller price fluctuations and is considered to be less risky than SPSB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FLDR	SPSB	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.42%	0.64%	-0.22%
Volatility (6M) Calculated over the trailing 6-month period	0.56%	0.87%	-0.31%
Volatility (1Y) Calculated over the trailing 1-year period	0.98%	1.50%	-0.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.21%	1.97%	-0.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.32%	3.06%	+2.26%