TDTT vs. TLH

Last updated Apr 1, 2026

Compare and contrast key facts about FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) and iShares 10-20 Year Treasury Bond ETF (TLH).

TDTT and TLH are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. TDTT is a passively managed fund by Northern Trust that tracks the performance of the iBoxx 3-Year Target Duration TIPS. It was launched on Sep 19, 2011. TLH is a passively managed fund by iShares that tracks the performance of the ICE U.S. Treasury 10-20 Year Bond Index. It was launched on Jan 11, 2007. Both TDTT and TLH 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

TDTT vs. TLH - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) and iShares 10-20 Year Treasury Bond ETF (TLH). The values are adjusted to include any dividend payments, if applicable.

TDTT vs. TLH - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund	0.75%	6.67%	3.96%	4.40%	-4.58%	5.49%	6.84%	5.74%	0.25%	0.43%
TLH iShares 10-20 Year Treasury Bond ETF	-0.24%	6.47%	-4.21%	4.03%	-25.24%	-5.38%	13.78%	10.11%	0.37%	4.21%

Returns By Period

In the year-to-date period, TDTT achieves a 0.75% return, which is significantly higher than TLH's -0.24% return. Over the past 10 years, TDTT has outperformed TLH with an annualized return of 3.04%, while TLH has yielded a comparatively lower -0.67% annualized return.

TDTT

• 1D: 0.00%
• 1M: -0.12%
• YTD: 0.75%
• 6M: 1.02%
• 1Y: 3.75%
• 3Y*: 4.31%
• 5Y*: 3.01%
• 10Y*: 3.04%

TLH

• 1D: 0.09%
• 1M: -3.77%
• YTD: -0.24%
• 6M: -0.12%
• 1Y: 1.31%
• 3Y*: -0.20%
• 5Y*: -3.45%
• 10Y*: -0.67%

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

TDTT vs. TLH - Expense Ratio Comparison

TDTT has a 0.18% expense ratio, which is higher than TLH's 0.15% 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%.

TDTT

FlexShares iBoxx 3-Year Target Duration TIPS Index Fund

TLH

iShares 10-20 Year Treasury Bond ETF

Return for Risk

TDTT vs. TLH — Risk / Return Rank

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

TDTT

TDTT Risk / Return Rank: 85
TDTT Sharpe Ratio Rank: 83
TDTT Sortino Ratio Rank: 87
TDTT Omega Ratio Rank: 85
TDTT Calmar Ratio Rank: 88
TDTT Martin Ratio Rank: 83

TLH

TLH Risk / Return Rank: 16
TLH Sharpe Ratio Rank: 16
TLH Sortino Ratio Rank: 14
TLH Omega Ratio Rank: 14
TLH Calmar Ratio Rank: 18
TLH Martin Ratio Rank: 17

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.

TDTT vs. TLH - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) and iShares 10-20 Year Treasury Bond ETF (TLH). 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.

	TDTT	TLH	Difference
Sharpe ratio Return per unit of total volatility	1.60	0.14	+1.46
Sortino ratio Return per unit of downside risk	2.37	0.25	+2.12
Omega ratio Gain probability vs. loss probability	1.33	1.03	+0.30
Calmar ratio Return relative to maximum drawdown	2.81	0.25	+2.55
Martin ratio Return relative to average drawdown	9.14	0.58	+8.56
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TDTT vs. TLH - Sharpe Ratio Comparison

The current TDTT Sharpe Ratio is 1.60, which is higher than the TLH Sharpe Ratio of 0.14. The chart below compares the historical Sharpe Ratios of TDTT and TLH, 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

	TDTT	TLH	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.60	0.14	+1.46
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.82	-0.27	+1.10
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.90	-0.06	+0.96
Sharpe Ratio (All Time) Calculated using the full available price history	0.68	0.28	+0.40

Correlation

The correlation between TDTT and TLH is 0.44, 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

TDTT vs. TLH - Dividend Comparison

TDTT's dividend yield for the trailing twelve months is around 4.26%, less than TLH's 4.33% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund	3.49%	4.52%	4.01%	3.88%	6.97%	4.53%	1.15%	1.91%	2.48%	1.88%	1.01%	0.00%
TLH iShares 10-20 Year Treasury Bond ETF	3.96%	4.17%	4.28%	3.83%	2.78%	1.50%	2.65%	2.31%	2.17%	1.83%	1.91%	2.13%

Drawdowns

TDTT vs. TLH - Drawdown Comparison

The maximum TDTT drawdown since its inception was -6.97%, smaller than the maximum TLH drawdown of -41.14%. Use the drawdown chart below to compare losses from any high point for TDTT and TLH.

Drawdown Indicators

	TDTT	TLH	Difference
Max Drawdown Largest peak-to-trough decline	-6.97%	-41.14%	+34.17%
Max Drawdown (1Y) Largest decline over 1 year	-1.40%	-7.57%	+6.17%
Max Drawdown (5Y) Largest decline over 5 years	-6.97%	-35.41%	+28.44%
Max Drawdown (10Y) Largest decline over 10 years	-6.97%	-41.14%	+34.17%
Current Drawdown Current decline from peak	-0.45%	-29.63%	+29.18%
Average Drawdown Average peak-to-trough decline	-1.62%	-10.58%	+8.96%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.43%	3.30%	-2.87%

Volatility

TDTT vs. TLH - Volatility Comparison

The current volatility for FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) is 0.65%, while iShares 10-20 Year Treasury Bond ETF (TLH) has a volatility of 3.25%. This indicates that TDTT experiences smaller price fluctuations and is considered to be less risky than TLH based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TDTT	TLH	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.65%	3.25%	-2.60%
Volatility (6M) Calculated over the trailing 6-month period	1.19%	5.40%	-4.21%
Volatility (1Y) Calculated over the trailing 1-year period	2.35%	9.29%	-6.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.68%	12.70%	-9.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.38%	11.19%	-7.81%