TLH vs. TDTT

Last updated Apr 1, 2026

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

TLH and TDTT are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. 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. 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. Both TLH and TDTT 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

TLH vs. TDTT - Performance Comparison

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

TLH vs. TDTT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
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%

Returns By Period

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

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%

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%

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

TLH vs. TDTT - Expense Ratio Comparison

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

TDTT

FlexShares iBoxx 3-Year Target Duration TIPS Index Fund

TLH

iShares 10-20 Year Treasury Bond ETF

Return for Risk

TLH vs. TDTT — Risk / Return Rank

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

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

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

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.

TLH vs. TDTT - Risk-Adjusted Trends Comparison

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

	TLH	TDTT	Difference
Sharpe ratio Return per unit of total volatility	0.14	1.60	-1.46
Sortino ratio Return per unit of downside risk	0.25	2.37	-2.12
Omega ratio Gain probability vs. loss probability	1.03	1.33	-0.30
Calmar ratio Return relative to maximum drawdown	0.25	2.81	-2.55
Martin ratio Return relative to average drawdown	0.58	9.14	-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.

TLH vs. TDTT - Sharpe Ratio Comparison

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

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

Correlation

The correlation between TLH and TDTT 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

TLH vs. TDTT - Dividend Comparison

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

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TLH iShares 10-20 Year Treasury Bond ETF	4.33%	4.17%	4.28%	3.83%	2.78%	1.50%	2.65%	2.31%	2.17%	1.83%	1.91%	2.13%
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund	4.26%	4.52%	4.01%	3.88%	6.97%	4.53%	1.15%	1.91%	2.48%	1.88%	1.01%	0.00%

Drawdowns

TLH vs. TDTT - Drawdown Comparison

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

Drawdown Indicators

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

Volatility

TLH vs. TDTT - Volatility Comparison

iShares 10-20 Year Treasury Bond ETF (TLH) has a higher volatility of 3.25% compared to FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) at 0.65%. This indicates that TLH's price experiences larger fluctuations and is considered to be riskier than TDTT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

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