TDTT vs. IQDY

Last updated Apr 2, 2026

Compare and contrast key facts about FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) and FlexShares International Quality Dividend Dynamic Index Fund (IQDY).

TDTT and IQDY 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. IQDY is a passively managed fund by Northern Trust that tracks the performance of the Northern Trust International Quality Dividend Dynamic Index. It was launched on Apr 12, 2013. Both TDTT and IQDY 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. IQDY - 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 FlexShares International Quality Dividend Dynamic Index Fund (IQDY). The values are adjusted to include any dividend payments, if applicable.

TDTT vs. IQDY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund	0.69%	6.67%	3.96%	4.40%	-4.58%	5.49%	6.84%	5.74%	0.25%	0.43%
IQDY FlexShares International Quality Dividend Dynamic Index Fund	4.83%	37.44%	5.97%	23.45%	-15.78%	12.00%	9.54%	27.27%	-20.04%	24.06%

Returns By Period

In the year-to-date period, TDTT achieves a 0.69% return, which is significantly lower than IQDY's 4.83% return. Over the past 10 years, TDTT has underperformed IQDY with an annualized return of 3.03%, while IQDY has yielded a comparatively higher 10.63% annualized return.

TDTT

• 1D: -0.06%
• 1M: -0.14%
• YTD: 0.69%
• 6M: 0.85%
• 1Y: 3.66%
• 3Y*: 4.29%
• 5Y*: 3.00%
• 10Y*: 3.03%

IQDY

• 1D: 1.00%
• 1M: -4.19%
• YTD: 4.83%
• 6M: 13.30%
• 1Y: 35.97%
• 3Y*: 20.02%
• 5Y*: 10.24%
• 10Y*: 10.63%

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

TDTT vs. IQDY - Expense Ratio Comparison

TDTT has a 0.18% expense ratio, which is lower than IQDY's 0.47% expense ratio.

IQDY

FlexShares International Quality Dividend Dynamic Index Fund

TDTT

FlexShares iBoxx 3-Year Target Duration TIPS Index Fund

Return for Risk

TDTT vs. IQDY — Risk / Return Rank

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

TDTT

TDTT Risk / Return Rank: 81
TDTT Sharpe Ratio Rank: 80
TDTT Sortino Ratio Rank: 84
TDTT Omega Ratio Rank: 80
TDTT Calmar Ratio Rank: 84
TDTT Martin Ratio Rank: 75

IQDY

IQDY Risk / Return Rank: 89
IQDY Sharpe Ratio Rank: 88
IQDY Sortino Ratio Rank: 90
IQDY Omega Ratio Rank: 90
IQDY Calmar Ratio Rank: 87
IQDY Martin Ratio Rank: 90

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. IQDY - 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 FlexShares International Quality Dividend Dynamic Index Fund (IQDY). 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	IQDY	Difference
Sharpe ratio Return per unit of total volatility	1.56	1.95	-0.39
Sortino ratio Return per unit of downside risk	2.31	2.64	-0.33
Omega ratio Gain probability vs. loss probability	1.32	1.40	-0.08
Calmar ratio Return relative to maximum drawdown	2.64	2.91	-0.27
Martin ratio Return relative to average drawdown	8.57	12.60	-4.03
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. IQDY - Sharpe Ratio Comparison

The current TDTT Sharpe Ratio is 1.56, which is comparable to the IQDY Sharpe Ratio of 1.95. The chart below compares the historical Sharpe Ratios of TDTT and IQDY, 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	IQDY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.56	1.95	-0.39
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.82	0.58	+0.23
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.90	0.58	+0.32
Sharpe Ratio (All Time) Calculated using the full available price history	0.68	0.45	+0.22

Correlation

The correlation between TDTT and IQDY 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

TDTT vs. IQDY - Dividend Comparison

TDTT's dividend yield for the trailing twelve months is around 3.70%, more than IQDY's 3.11% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund	3.70%	4.52%	4.01%	3.88%	6.97%	4.53%	1.15%	1.91%	2.48%	1.88%	1.01%	0.00%
IQDY FlexShares International Quality Dividend Dynamic Index Fund	3.11%	3.26%	6.95%	6.45%	5.52%	3.89%	2.62%	3.85%	5.97%	3.57%	3.77%	4.08%

Drawdowns

TDTT vs. IQDY - Drawdown Comparison

The maximum TDTT drawdown since its inception was -6.97%, smaller than the maximum IQDY drawdown of -39.60%. Use the drawdown chart below to compare losses from any high point for TDTT and IQDY.

Drawdown Indicators

	TDTT	IQDY	Difference
Max Drawdown Largest peak-to-trough decline	-6.97%	-39.60%	+32.63%
Max Drawdown (1Y) Largest decline over 1 year	-1.40%	-12.52%	+11.12%
Max Drawdown (5Y) Largest decline over 5 years	-6.97%	-33.03%	+26.06%
Max Drawdown (10Y) Largest decline over 10 years	-6.97%	-39.60%	+32.63%
Current Drawdown Current decline from peak	-0.51%	-6.04%	+5.53%
Average Drawdown Average peak-to-trough decline	-1.62%	-9.21%	+7.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.43%	2.90%	-2.47%

Volatility

TDTT vs. IQDY - Volatility Comparison

The current volatility for FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) is 0.65%, while FlexShares International Quality Dividend Dynamic Index Fund (IQDY) has a volatility of 7.74%. This indicates that TDTT experiences smaller price fluctuations and is considered to be less risky than IQDY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TDTT	IQDY	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.65%	7.74%	-7.09%
Volatility (6M) Calculated over the trailing 6-month period	1.19%	11.96%	-10.77%
Volatility (1Y) Calculated over the trailing 1-year period	2.35%	18.52%	-16.17%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.68%	17.61%	-13.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.38%	18.34%	-14.96%