What is the  TDTT ETF ?
5 min read
By Ron Koren, ETF Insider

What is the TDTT ETF ?

TDTT ETF: Overview

The TDTT ETF, or "Treasury Inflation-Protected Securities Due in 2026 ETF," is an exchange-traded fund that aims to provide investors with exposure to inflation-protected U.S. Treasury obligations. The underlying index of the ETF is designed to track a selection of Treasury Inflation-Protected Securities (TIPS) with a targeted average modified adjusted duration of approximately three years. TIPS are securities issued by the U.S. Treasury that offer protection against inflation, as their principal and interest payments are linked to the Consumer Price Index for All Urban Consumers (CPI-U). The TDTT ETF follows a passive or indexing approach, meaning it seeks to replicate the constituent securities of its underlying index rather than actively trying to outperform it.

TDTT ETF Underlying and Exposure: What Does It Track and How?

The Underlying Index of the TDTT ETF is governed by published, objective rules for security selection, exclusion, rebalancing, and adjustments. It includes publicly issued TIPS with maturity dates ranging from one to ten years from the index rebalancing date. As of December 31, 2022, the Underlying Index comprised 27 TIPS, each weighted to achieve the targeted average modified adjusted duration. The ETF replicates the composition of its Underlying Index, either through full replication or representative sampling. Full replication involves investing in substantially all of the securities in the index, while representative sampling allows for investment in a representative sample of securities that collectively mirrors the index's investment profile.

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TDTT ETF Benefits: Why Invest in This ETF?

The TDTT ETF offers several benefits to investors seeking inflation protection and exposure to U.S. Treasury obligations. First and foremost, it provides a reliable hedge against inflation, which can erode the purchasing power of fixed-income investments. By linking principal and interest payments to the CPI-U, TIPS offer investors a way to preserve the real value of their investment in times of rising prices. Additionally, the ETF follows a passive investment approach, which typically leads to lower management fees compared to actively managed funds. This cost-efficiency can positively impact the overall returns for long-term investors. Moreover, as the Fund generally rebalances its portfolio in accordance with the Underlying Index, investors can have confidence that the ETF stays true to its investment objective.

TDTT ETF Considerations Before Investing

While the TDTT ETF offers attractive benefits, investors should carefully consider certain factors before investing. One crucial aspect is the nature of TIPS themselves. While they provide protection against inflation, their fixed income nature may lead to lower returns during periods of deflation or stable inflation. Additionally, like any investment, the value of TIPS can fluctuate based on changes in interest rates and economic conditions. Investors should assess their risk tolerance and investment goals to determine if the TDTT ETF aligns with their overall portfolio strategy. It's also essential to note that the ETF invests at least 80% of its assets in the securities of the Underlying Index, with up to 20% allocated to cash, cash equivalents, futures contracts, options on futures contracts, and other securities not included in the Underlying Index. Understanding these allocation details is crucial for potential investors.


In conclusion, the TDTT ETF presents an attractive option for investors seeking inflation protection and exposure to U.S. Treasury obligations. Through its passive approach and adherence to its Underlying Index, the ETF aims to deliver performance that tracks the performance of inflation-protected TIPS. However, like any investment, it's essential to conduct thorough research, assess risk, and align the investment with individual financial goals. Before making any investment decisions, consulting with a qualified financial advisor is highly recommended.

Disclaimer: This article is for informational purposes only and does not provide any investment advisory services. Investors should conduct their due diligence and seek professional financial advice before making any investment decisions.

TDTT ETF issuer
TDTT ETF official page

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  • What is the TDTT ETF?

    The TDTT ETF, also known as the iShares MSCI USA ESG Select ETF, is an exchange-traded fund that aims to provide investors with exposure to U.S. and non-U.S. companies in the infrastructure and industrials sectors that derive at least 40% of their combined annual green revenues from environmentally beneficial activities.

  • What is the underlying index that the TDTT ETF aims to track?

    The TDTT ETF seeks to track the performance of the FTSE Green Revenues Select Infrastructure and Industrials Index, which is developed by FTSE International Limited. The index is composed of large-, mid-, and small-cap stocks from developed and emerging markets that focus on green solutions supporting energy efficiency, emissions mitigation, pollution reduction, and land and resource optimization.

  • What types of companies are included in the TDTT ETF?

    The TDTT ETF includes companies that derive at least 40% of their combined annual green revenues from activities related to energy efficiency, clean transportation, emissions mitigation, pollution reduction, clean water solutions, land pollution solutions, air pollution solutions, land and resource optimization solutions, and recycling, among others.

  • How does the TDTT ETF work?

    The TDTT ETF operates by using a representative sampling indexing strategy to invest in a sample of securities that collectively replicate the investment characteristics of the FTSE Green Revenues Select Infrastructure and Industrials Index. The fund generally invests at least 90% of its assets in the component securities of the underlying index and may also use certain futures, options, and swap contracts to track the index.

  • What are the advantages of investing in the TDTT ETF?

    Investing in the TDTT ETF offers exposure to companies that are involved in environmentally beneficial activities, contributing to themes such as energy efficiency, pollution reduction, and sustainable resource management. It allows investors to align their investments with ESG (Environmental, Social, and Governance) principles while providing diversification across the infrastructure and industrials sectors.