SUSB vs. FLOT

Last updated Apr 1, 2026

Compare and contrast key facts about iShares ESG 1-5 Year USD Corporate Bond ETF (SUSB) and iShares Floating Rate Bond ETF (FLOT).

SUSB and FLOT are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SUSB is a passively managed fund by iShares that tracks the performance of the Bloomberg Barclays MSCI US Corporate 1-5 Year ESG Focus Index. It was launched on Jul 12, 2017. FLOT is a passively managed fund by iShares that tracks the performance of the Bloomberg US Floating Rate Notes (<5 Y). It was launched on Jun 14, 2011. Both SUSB and FLOT 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

SUSB vs. FLOT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares ESG 1-5 Year USD Corporate Bond ETF (SUSB) and iShares Floating Rate Bond ETF (FLOT). The values are adjusted to include any dividend payments, if applicable.

SUSB vs. FLOT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SUSB iShares ESG 1-5 Year USD Corporate Bond ETF	0.04%	6.81%	4.83%	5.98%	-5.72%	-0.76%	4.96%	7.02%	0.54%	0.28%
FLOT iShares Floating Rate Bond ETF	0.84%	4.91%	6.53%	6.43%	1.28%	0.45%	0.87%	3.97%	1.48%	0.62%

Returns By Period

In the year-to-date period, SUSB achieves a 0.04% return, which is significantly lower than FLOT's 0.84% return.

SUSB

• 1D: 0.26%
• 1M: -0.87%
• YTD: 0.04%
• 6M: 1.28%
• 1Y: 4.85%
• 3Y*: 5.31%
• 5Y*: 2.24%
• 10Y*: —

FLOT

• 1D: 0.24%
• 1M: 0.22%
• YTD: 0.84%
• 6M: 2.01%
• 1Y: 4.63%
• 3Y*: 5.91%
• 5Y*: 4.03%
• 10Y*: 2.98%

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

SUSB vs. FLOT - Expense Ratio Comparison

SUSB has a 0.12% expense ratio, which is lower than FLOT's 0.20% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

FLOT

iShares Floating Rate Bond ETF

SUSB

iShares ESG 1-5 Year USD Corporate Bond ETF

Return for Risk

SUSB vs. FLOT — Risk / Return Rank

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

SUSB

SUSB Risk / Return Rank: 93
SUSB Sharpe Ratio Rank: 92
SUSB Sortino Ratio Rank: 95
SUSB Omega Ratio Rank: 94
SUSB Calmar Ratio Rank: 92
SUSB Martin Ratio Rank: 93

FLOT

FLOT Risk / Return Rank: 95
FLOT Sharpe Ratio Rank: 94
FLOT Sortino Ratio Rank: 93
FLOT Omega Ratio Rank: 98
FLOT Calmar Ratio Rank: 90
FLOT Martin Ratio Rank: 98

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.

SUSB vs. FLOT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares ESG 1-5 Year USD Corporate Bond ETF (SUSB) and iShares Floating Rate Bond ETF (FLOT). 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.

	SUSB	FLOT	Difference
Sharpe ratio Return per unit of total volatility	2.12	2.20	-0.07
Sortino ratio Return per unit of downside risk	3.09	2.75	+0.34
Omega ratio Gain probability vs. loss probability	1.43	2.01	-0.58
Calmar ratio Return relative to maximum drawdown	3.26	2.95	+0.31
Martin ratio Return relative to average drawdown	13.63	22.96	-9.33
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SUSB vs. FLOT - Sharpe Ratio Comparison

The current SUSB Sharpe Ratio is 2.12, which is comparable to the FLOT Sharpe Ratio of 2.20. The chart below compares the historical Sharpe Ratios of SUSB and FLOT, 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

	SUSB	FLOT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.12	2.20	-0.07
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.76	2.29	-1.52
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.72	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.72	0.65	+0.07

Correlation

The correlation between SUSB and FLOT is 0.12, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

SUSB vs. FLOT - Dividend Comparison

SUSB's dividend yield for the trailing twelve months is around 4.45%, less than FLOT's 4.72% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SUSB iShares ESG 1-5 Year USD Corporate Bond ETF	4.45%	4.40%	3.81%	2.81%	1.74%	1.30%	1.91%	2.83%	2.61%	0.96%	0.00%	0.00%
FLOT iShares Floating Rate Bond ETF	4.72%	4.84%	5.82%	5.66%	2.06%	0.43%	1.25%	2.78%	2.41%	1.46%	0.97%	0.53%

Drawdowns

SUSB vs. FLOT - Drawdown Comparison

The maximum SUSB drawdown since its inception was -13.25%, roughly equal to the maximum FLOT drawdown of -13.54%. Use the drawdown chart below to compare losses from any high point for SUSB and FLOT.

Drawdown Indicators

	SUSB	FLOT	Difference
Max Drawdown Largest peak-to-trough decline	-13.25%	-13.54%	+0.29%
Max Drawdown (1Y) Largest decline over 1 year	-1.49%	-1.57%	+0.08%
Max Drawdown (5Y) Largest decline over 5 years	-9.57%	-2.36%	-7.21%
Max Drawdown (10Y) Largest decline over 10 years	—	-13.54%	—
Current Drawdown Current decline from peak	-0.87%	-0.06%	-0.81%
Average Drawdown Average peak-to-trough decline	-1.60%	-0.21%	-1.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.36%	0.20%	+0.16%

Volatility

SUSB vs. FLOT - Volatility Comparison

iShares ESG 1-5 Year USD Corporate Bond ETF (SUSB) has a higher volatility of 0.93% compared to iShares Floating Rate Bond ETF (FLOT) at 0.49%. This indicates that SUSB's price experiences larger fluctuations and is considered to be riskier than FLOT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SUSB	FLOT	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.93%	0.49%	+0.44%
Volatility (6M) Calculated over the trailing 6-month period	1.35%	0.59%	+0.76%
Volatility (1Y) Calculated over the trailing 1-year period	2.29%	2.12%	+0.17%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.94%	1.77%	+1.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.75%	4.15%	-0.40%