ETFs · ETF deep dive · Published 2026-05-15 · 12 min

ITOT ETF Analysis: Holdings, Fees, Inception, Sectors, And Portfolio Role

ITOT is iShares Core S&P Total U.S. Stock Market ETF, issued by BlackRock. Review its inception date, expense ratio, index strategy, top holdings, sector exposure, risks, and portfolio role.

Summary

ITOT is iShares Core S&P Total U.S. Stock Market ETF, a Large Blend issued by BlackRock. Latest snapshot: inception Jan 20, 2004, expense ratio 0.03%, AUM $90.67B, 2,507 holdings, top-10 weight 34.87%, and mandate/index: S&P TMI

ITOT is best read as a core U.S. equity building block, not just a ticker symbol.
AUM and cost: $90.67B; expense ratio 0.03%.
Concentration: 2,507 holdings; top-10 weight 34.87%, which is moderate.
Largest visible exposure: Technology at 32.22%.

ETF Profile

The facts that define ownership cost, structure, and portfolio behavior.

Issuer BlackRock
Expense ratio 0.03%
Holdings 2,507 holdings
Top-10 weight 34.87%
www.snowballhare.com

Investor Checklist

  • Issuer and listing venue: BlackRock, NYSEARCA.
  • Launch date and fee: Jan 20, 2004, 0.03%.
  • Portfolio size and concentration: 2,507 holdings, with the top 10 at 34.87%.
  • Primary exposure: Equity; Large Blend; North America; Index: S&P TMI
  • Best use case: Core U.S. equity exposure or benchmark building block, depending on the investor's existing index allocation.
  • Main risk to respect: The key risk is that ITOT's stated diversification may not protect investors if its dominant exposure, largest holdings, or main macro factor reverses. Current top-10 concentration is 34.87%.

ITOT Investor Snapshot

ITOT is iShares Core S&P Total U.S. Stock Market ETF, issued by BlackRock. It is best understood as a core U.S. equity building block. The fund has $90.67B in AUM, charges 0.03%, holds 2,507 holdings, and has top-10 concentration of 34.87%. Its largest listed holdings include NVIDIA Corporation (7.56%), Apple Inc. (6.19%), Microsoft Corporation (4.37%).

ITOT ETF Facts: Launch Date, Issuer, Fee, Assets, And Strategy

ITOT is iShares Core S&P Total U.S. Stock Market ETF. Issuer: BlackRock. Exchange: NYSEARCA. Inception: Jan 20, 2004. Expense ratio: 0.03%. AUM: $90.67B. Mandate or tracked index: S&P TMI

ITOT Top Holdings And Concentration

Holdings snapshot: May 19, 2026. ITOT has 2,507 holdings. The top 10 positions account for 34.87%, so investors should read the fund through its largest holdings first rather than assuming every ETF is equally diversified.

  • $NVDA - NVIDIA Corporation: 7.56%
  • $AAPL - Apple Inc.: 6.19%
  • $MSFT - Microsoft Corporation: 4.37%
  • $AMZN - Amazon.com, Inc.: 3.57%
  • $GOOGL - Alphabet Inc.: 3.18%
  • $AVGO - Broadcom Inc.: 2.75%
  • $GOOG - Alphabet Inc.: 2.54%
  • $META - Meta Platforms, Inc.: 1.86%
  • $TSLA - Tesla, Inc.: 1.60%
  • $BRK.B - Berkshire Hathaway Inc.: 1.24%

ITOT Sector And Industry Exposure

ITOT exposure summary: Equity; Large Blend; North America; Index: S&P TMI. These exposures explain what investors actually own after buying the ETF. A broad fund is usually driven by sector weights and mega-cap leadership; a sector or thematic fund is driven by the industry cycle; a bond or alternative asset fund is driven by macro variables rather than company earnings.

  • Technology: 32.22%. Sector weight from the latest public ETF holdings snapshot.
  • Financials: 12.76%. Sector weight from the latest public ETF holdings snapshot.
  • Consumer Discretionary: 10.53%. Sector weight from the latest public ETF holdings snapshot.
  • Industrials: 9.60%. Sector weight from the latest public ETF holdings snapshot.
  • Health Care: 9.11%. Sector weight from the latest public ETF holdings snapshot.
  • Communication Services: 7.63%. Sector weight from the latest public ETF holdings snapshot.
  • Consumer Staples: 4.99%. Sector weight from the latest public ETF holdings snapshot.
  • Other: 3.35%. Sector weight from the latest public ETF holdings snapshot.
  • Energy: 2.95%. Sector weight from the latest public ETF holdings snapshot.
  • Utilities: 2.34%. Sector weight from the latest public ETF holdings snapshot.

ITOT Fees, Liquidity, And Product Structure

ITOT trades on NYSEARCA. The stated expense ratio is 0.03%, and current AUM is $90.67B. Lower fees matter most for long holding periods, while AUM and trading depth matter when investors place larger orders or need reliable execution during volatile sessions.

ITOT Return Drivers: What Has To Go Right

The return drivers for ITOT are corporate earnings growth, valuation multiples, dividends, market breadth, and mega-cap leadership. That matters because two ETFs can both look diversified but respond to very different conditions. For ITOT, investors should compare price performance with the fund's dominant exposure, the largest holdings, and the macro factor behind the category.

ITOT Current Market Theme

iShares Core S&P Total U.S. Stock Market ETF is a Large Blend ETF with $90.67B in AUM, 2,507 holdings, top-10 concentration of 34.87%, and a leading exposure to Technology (32.22%). The largest holdings include NVIDIA Corporation (7.56%), Apple Inc. (6.19%), Microsoft Corporation (4.37%).

When ITOT Tends To Work

ITOT tends to work when corporate earnings growth, valuation multiples, dividends, market breadth, and mega-cap leadership are moving in the fund's favor.

ITOT Portfolio Role: Core Holding Or Satellite Position?

Core U.S. equity exposure or benchmark building block, depending on the investor's existing index allocation. In practical portfolio terms, ITOT should be sized according to whether it is replacing broad market exposure, adding a factor tilt, expressing a sector view, or hedging a macro risk. The more concentrated the fund, the less it should be treated as a complete portfolio by itself.

ITOT Key Risks Investors Should Watch

The main risks are specific enough to check before buying, not generic ETF fine print.

  • Market risk: ITOT can fall with its asset class even when the fund structure works as designed.
  • Concentration risk: top-10 weight is 34.87%, which is moderate for an ETF in this category.
  • Exposure risk: the main exposure is Equity; Large Blend; North America; Index: S&P TMI
  • Fee and trading risk: expense ratio is 0.03%; investors should still check spread, volume, and premium/discount before large orders.
  • Thesis risk: The key risk is that ITOT's stated diversification may not protect investors if its dominant exposure, largest holdings, or main macro factor reverses. Current top-10 concentration is 34.87%.

Who ITOT Is Suitable For

ITOT can be useful, but the right investor depends on time horizon, existing overlap, and drawdown tolerance.

  • More suitable for investors who need a core U.S. equity building block.
  • More suitable for investors who understand that ITOT's top holdings and sector exposures can dominate short-term returns.
  • Less suitable for investors who need stable cash income unless the fund's underlying asset class is explicitly income-oriented.
  • Less suitable for investors already heavily exposed to the same largest holdings or same macro factor.

ITOT What To Monitor Next

ITOT should be reviewed after new holdings files, major market moves, or category-specific catalysts. The most important checks are:

  • Holdings as of May 19, 2026.
  • AUM: $90.67B.
  • Expense ratio: 0.03%.
  • Top-10 weight: 34.87%.

ITOT Action Reference

A useful ETF article should end with a decision framework. For ITOT, the practical read is:

  • Long-term investor: use as a core equity sleeve and rebalance instead of trading every headline.
  • Investor with heavy mega-cap exposure: compare overlap before adding more.
  • Tactical investor: watch market breadth and equal-weight relative strength.

ITOT Bottom Line

ITOT is not just a fund name. It is a package of exposures: iShares Core S&P Total U.S. Stock Market ETF; issuer BlackRock; fee 0.03%; AUM $90.67B; 2,507 holdings; top-10 weight 34.87%; holdings date May 19, 2026. The investment case is strongest when the fund's largest holdings, main exposure, and category-level return drivers all point in the same direction.

Common Questions

What is ITOT?

ITOT is iShares Core S&P Total U.S. Stock Market ETF, a Large Blend issued by BlackRock.

When did ITOT launch?

ITOT's inception date is Jan 20, 2004.

What is the ITOT expense ratio?

ITOT charges an expense ratio of 0.03%.

What does ITOT hold?

ITOT holds 2,507 holdings. Major holdings include NVIDIA Corporation (7.56%), Apple Inc. (6.19%), Microsoft Corporation (4.37%), Amazon.com, Inc. (3.57%), Alphabet Inc. (3.18%).

Is ITOT diversified?

ITOT's top 10 holdings are 34.87%.

Who might use ITOT?

Core U.S. equity exposure or benchmark building block, depending on the investor's existing index allocation.

Risk Note This page is for education only and does not constitute investment advice. Investing involves risk.