What if you'd held IEI?
A $1,000 investment in iShares 3-7 Year Treasury Bond ETF (IEI) at the month-end close of 2007-01 would be worth $1,735 at the close of 2026-08 — +73.5% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,359.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-08, dividends included.
Every year, $1,000 from 2007
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2007 | $1,000 | — |
| 2008 | $1,128 | +12.8% |
| 2009 | $1,109 | -1.7% |
| 2010 | $1,179 | +6.3% |
| 2011 | $1,277 | +8.3% |
| 2012 | $1,300 | +1.8% |
| 2013 | $1,276 | -1.8% |
| 2014 | $1,316 | +3.2% |
| 2015 | $1,338 | +1.6% |
| 2016 | $1,354 | +1.2% |
| 2017 | $1,371 | +1.2% |
| 2018 | $1,389 | +1.4% |
| 2019 | $1,469 | +5.7% |
| 2020 | $1,571 | +6.9% |
| 2021 | $1,531 | -2.5% |
| 2022 | $1,385 | -9.5% |
| 2023 | $1,446 | +4.4% |
| 2024 | $1,473 | +1.8% |
| 2025 | $1,575 | +7.0% |
| 2026 | $1,574 | -0.1% |
Best and worst month-end to buy
The best single month-end close to have bought IEI was 2007-01 ($67.28): $1,000 then is $1,735 today. The worst was 2026-02 ($119): $1,000 then is $985.
FAQ
What would $1,000 in IEI be worth today?
A $1,000 investment in iShares 3-7 Year Treasury Bond ETF (IEI) at the start of 2007 would be worth about $1,735 today, a total return of +73.5%. Dividends are reinvested in these figures.
What were the best and worst years for IEI?
iShares 3-7 Year Treasury Bond ETF (IEI)'s strongest calendar year since 2007 was 2008, a +12.8% return — $1,000 held through that year became about $1,128 by year-end. Its weakest year was 2022, at -9.5%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in IEI have grown?
Investing $100 at the end of every month since 2007-01 would have grown to about $28,313 on $23,600 invested.
Did IEI beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $5,359. IEI trailed the S&P 500 by +67.6% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
iShares 3-7 Year Treasury Bond ETF (IEI) historical total-return data from 2007-01 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices from Yahoo Finance historical data — adjusted for stock splits and reinvested dividends — the same convention used by major brokerages. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (Yahoo Finance): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.