iShares Core S&P Total U.S. Stock Market ETF (ITOT)
$166.08−1.15%close of Oct 16, 2026
iShares Core S&P Total U.S. Stock Market ETF (ITOT) is an exchange-traded fund (ETF) run by iShares (BlackRock). This fund owns shares in thousands of US companies, from very large to very small. It charges 0.03% a year. From January 2004 to October 2026 it returned about 10.6% a year, and its worst drop was −55.2%.
Written by the Tactfolio research team. Fund facts checked October 17, 2026. Prices through October 16, 2026.
- Yearly fee
- 0.03%
- about $3 on $10,000
- 1-year return
- 16.1%
- to Oct 16, 2026
- Return per year
- 10.6%
- since January 2004
- Worst drop
- −55.2%
- since 2004
- Below its high
- −2.4%
- now
- Volatility
- 18.6%
- yearly swings
- Issuer
- iShares (BlackRock)
- Tracks
- S&P Total Market Index (TMI)
- Started trading
- January 20, 2004
- Type
- US stocks, ETF
- Holdings
- 2,446 holdings as of October 15, 2026
- Expense ratio
- 0.03% a year
How has ITOT done since 2004?#
From January 2004 to October 2026, ITOT returned about 10.6% a year. The S&P 500 returned about 10.7% a year over the same dates. Say you put in $10,000 at the start. It would have been worth about $99,204 at the end, with every dividend reinvested.
| Period | ITOT | S&P 500 (SPY) |
|---|---|---|
| 1 month | 1.0% | 1.5% |
| 3 months | 1.2% | 1.9% |
| 6 months | 8.7% | 9.3% |
| Year to date | 12.5% | 12.8% |
| 1 year | 16.1% | 16.8% |
| 3 years per year | 21.6% | 22.0% |
| 5 years per year | 11.7% | 12.8% |
| 10 years per year | 14.9% | 15.4% |
| Since 2004 per year | 10.6% | 10.7% |
Periods longer than a year show the return per year (CAGR). Prices through October 16, 2026. Figures use daily closing prices adjusted for splits, with dividends reinvested. They do not include taxes or the cost of buying and selling. Past results do not tell you what will happen next.
ITOT returns by month and year#
ITOT rose in 183 of its 274 months (67%). Its best month was April 2020, at 13.2%. Its worst was October 2008, at −17.5%.
| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 12.5% | 1.5 | −0.6 | −4.9 | 10.4 | 5.2 | −0.5 | −0.4 | 2.6 | −0.7 | −0.1 | ||
| 2025 | 17.0% | 3.0 | −1.8 | −5.9 | −0.8 | 6.4 | 5.2 | 2.3 | 2.3 | 3.4 | 2.3 | 0.1 | 0.0 |
| 2024 | 23.8% | 1.1 | 5.3 | 3.2 | −4.4 | 4.9 | 3.0 | 1.9 | 2.1 | 2.0 | −0.7 | 6.7 | −3.0 |
| 2023 | 26.1% | 6.9 | −2.3 | 2.6 | 1.0 | 0.5 | 6.8 | 3.6 | −1.9 | −4.8 | −2.7 | 9.4 | 5.4 |
| 2022 | −19.5% | −5.9 | −2.5 | 3.3 | −9.0 | −0.2 | −8.3 | 9.3 | −3.8 | −9.2 | 8.1 | 5.2 | −5.8 |
| 2021 | 25.7% | −0.3 | 3.2 | 3.6 | 5.1 | 0.5 | 2.4 | 1.8 | 2.8 | −4.5 | 6.7 | −1.4 | 3.8 |
| 2020 | 20.7% | −0.1 | −8.0 | −13.9 | 13.2 | 5.2 | 2.3 | 5.8 | 7.1 | −3.5 | −1.9 | 12.0 | 4.4 |
| 2019 | 30.7% | 8.4 | 3.5 | 1.4 | 3.9 | −6.3 | 6.9 | 1.3 | −1.9 | 1.8 | 2.2 | 3.8 | 2.9 |
| 2018 | −5.3% | 5.2 | −3.8 | −1.9 | 0.3 | 2.8 | 0.7 | 3.3 | 3.5 | 0.2 | −7.3 | 1.9 | −9.1 |
| 2017 | 21.4% | 2.0 | 3.6 | 0.1 | 1.0 | 1.1 | 0.9 | 1.9 | 0.1 | 2.4 | 2.2 | 3.0 | 1.2 |
| 2016 | 12.6% | −5.9 | 0.1 | 7.2 | 0.6 | 1.8 | 0.2 | 4.0 | 0.3 | 0.2 | −2.3 | 4.4 | 2.0 |
| 2015 | 0.9% | −2.9 | 5.7 | −1.3 | 0.6 | 1.3 | −1.8 | 1.9 | −6.1 | −2.6 | 8.2 | 0.4 | −1.9 |
| 2014 | 13.5% | −3.4 | 4.5 | 0.8 | 0.4 | 2.2 | 2.3 | −1.7 | 4.1 | −1.8 | 2.6 | 2.5 | 0.5 |
| 2013 | 33.3% | 5.3 | 1.2 | 4.3 | 1.8 | 2.4 | −1.4 | 5.4 | −3.0 | 3.5 | 4.4 | 3.0 | 2.5 |
| 2012 | 15.8% | 4.6 | 4.0 | 3.3 | −0.8 | −5.9 | 3.9 | 1.1 | 0.2 | 4.8 | −1.7 | 0.6 | 1.2 |
| 2011 | 1.8% | 2.1 | 3.6 | 0.4 | 2.8 | −1.0 | −1.7 | −2.3 | −5.4 | −7.5 | 11.3 | −0.7 | 1.5 |
| 2010 | 16.2% | −3.5 | 3.2 | 6.2 | 2.0 | −8.0 | −5.3 | 7.0 | −4.7 | 9.2 | 3.8 | 0.3 | 6.7 |
| 2009 | 26.6% | −8.9 | −10.4 | 8.3 | 10.6 | 5.2 | 0.4 | 7.6 | 3.7 | 3.8 | −2.3 | 5.9 | 2.4 |
| 2008 | −36.5% | −6.0 | −3.0 | −0.5 | 5.0 | 1.7 | −8.2 | −0.8 | 1.6 | −9.2 | −17.5 | −7.2 | 1.9 |
| 2007 | 5.1% | 1.8 | −1.6 | 1.0 | 4.2 | 3.7 | −1.8 | −3.4 | 1.6 | 3.6 | 1.5 | −4.4 | −0.6 |
| 2006 | 15.1% | 3.1 | 0.2 | 1.7 | 1.1 | −3.2 | 0.2 | 0.1 | 2.2 | 2.4 | 3.3 | 2.1 | 1.1 |
| 2005 | 5.3% | −2.6 | 2.5 | −2.0 | −2.3 | 3.7 | 0.6 | 3.6 | −1.4 | 1.1 | −1.8 | 4.0 | 0.0 |
| 2004 | 8.9% | −0.6 | 1.6 | −1.3 | −1.2 | 0.5 | 2.1 | −3.5 | −0.2 | 2.0 | 1.6 | 4.4 | 3.5 |
Each month runs from the last close of the month before. The first month counts from the first close.
How risky is ITOT compared with the S&P 500?#
Measured from October 2021 to October 2026, on the days both traded.
- Beta 1.01. When the S&P 500 moved 1% in a day, ITOT tended to move about 1.01%.
- Correlation 1.00. ITOT mostly moved with the S&P 500.
- Up and down months. In months the S&P 500 rose, ITOT rose 98% as much on average. In months it fell, ITOT fell 104% as much.
| Measure | ITOT | S&P 500 (SPY) |
|---|---|---|
| Return per year | 11.6% | 12.8% |
| Volatility | 17.4% | 17.1% |
| Worst drop | −25.4% | −24.5% |
| Sharpe ratio | 0.72 | 0.79 |
| Sortino ratio | 1.04 | 1.15 |
| Calmar ratio | 0.46 | 0.52 |
Volatility is how much the price swings in a year. The Sharpe ratio is return per unit of volatility, the Sortino ratio counts only the falls, and the Calmar ratio is the return per year over the worst drop. Higher ratios mean more return for the risk taken.
Is ITOT above its 200-day average?#
ITOT closed 5.1% above its 200-day average on October 16, 2026. A rule that holds ITOT only above that average would hold it today.
- vs 200-day average
- +5.1%
- above it
- 50-day vs 200-day
- +6.2%
- trend rising
- vs 52-week high
- −2.4%
- high of $170.24
A moving average is the average close over the last so many days. Trend rules such as the 10-month moving average strategy hold a fund only while it is above one. You can build that rule for ITOT and backtest it in a minute.
What was ITOT’s worst drop?#
A drawdown is how far a fund falls from its last high point. ITOT’s worst fall was −55.2%, from October 9, 2007 to March 9, 2009. It got back to that high on March 16, 2012. On October 16, 2026 it was 2.4% below its highest close.
| Drop | From the high | To the bottom | Back to the high |
|---|---|---|---|
| −55.2% | Oct 9, 2007 | Mar 9, 200917 months | Mar 16, 20123.0 years |
| −35.0% | Feb 19, 2020 | Mar 23, 202033 days | Aug 12, 20205 months |
| −25.4% | Jan 3, 2022 | Oct 12, 20229 months | Dec 18, 202314 months |
| −20.1% | Sep 20, 2018 | Dec 24, 20183 months | Apr 23, 20194 months |
| −19.4% | Feb 19, 2025 | Apr 8, 20252 months | Jun 27, 20253 months |
Big drops are normal for some funds. They matter because selling during a drop locks in the loss.
What does ITOT hold?#
This fund owns shares in thousands of US companies, from very large to very small. It tries to cover almost the whole US stock market in one fund. Its value rises and falls with US stocks overall.
It tracks the S&P Total Market Index (TMI). It had 2,446 holdings as of October 15, 2026, according to iShares (BlackRock).
What is the ITOT expense ratio?#
ITOT charges 0.03% a year. An expense ratio is the yearly fee a fund takes to run itself. On $10,000, a 0.03% fee comes to about $3 a year. Of the 162 ETFs on Tactfolio, 85% charge more.
You never get a bill for it. The fund takes the fee out of its own value a little each day.
Which Tactfolio strategies hold ITOT?#
No classic strategy holds ITOT yet. You can add it to your own rules in the builder and see how they would have done.
How does ITOT compare with similar ETFs?#
Funds that can stand in for ITOT:
- SCHB: Schwab U.S. Broad Market ETF, 0.03% a year
- VTI: Vanguard Morningstar Total Stock Market ETF, 0.03% a year
- SPYM: State Street SPDR Portfolio S&P 500 ETF, 0.02% a year
- IVV: iShares Core S&P 500 ETF, 0.03% a year
See all 8 ITOT alternatives, compared on the same dates as ITOT.
Test ITOT in your own rules#
Tactfolio is a platform where you build rules-based investing strategies, backtest them on decades of real prices, share them, and run them automatically in your own Alpaca account. Open the builder, add ITOT, and see how a rule such as “hold it only above its 200-day average” would have done. Strategies run on daily prices and hold US stocks and ETFs only.
The details#
Prices come from Tactfolio’s stored daily prices for ITOT and SPY. Each close is adjusted for splits, and dividends are reinvested on the day the fund pays them out. CAGR is the steady yearly return that turns the starting value into the ending value. Volatility is the yearly standard deviation of daily returns. Beta and correlation compare daily returns with the S&P 500 over the same dates.
Fund facts come from iShares (BlackRock). We checked them on October 17, 2026. Read what a backtest simulates and how to read drawdown and CAGR for more on these measures.
Common questions#
What is the expense ratio of ITOT?#
ITOT charges 0.03% a year, according to iShares (BlackRock) as of October 17, 2026. That is about $3 a year for every $10,000 you hold.
When did ITOT start trading?#
ITOT started trading on January 20, 2004. It is run by iShares (BlackRock).
What does ITOT track?#
ITOT tracks the S&P Total Market Index (TMI). This fund owns shares in thousands of US companies, from very large to very small.
How much has ITOT returned per year?#
From January 2004 to October 2026, ITOT returned about 10.6% a year with dividends reinvested. Its worst drop was −55.2%. Past returns do not tell you what it will do next.
Is ITOT above its 200-day moving average?#
On October 16, 2026, ITOT closed 5.1% above its 200-day moving average. This page updates after each US market close.
Which strategies use ITOT?#
None of Tactfolio’s classic strategies hold ITOT yet. You can test it in your own rules in the builder.