State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF
U.S. stock index ETF · tracks S&P MidCap 400 Index
As of its 2026 Q2 report, State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF held 402 positions with $18.39B in net assets. Its ten largest holdings made up 9.9% of the fund. The SPMD share class costs 0.03% a year. Over the 12 months to May 2026, SPMD returned 25.8%, with dividends reinvested. In 2026 Q2 it added 9 new positions and exited 9.
The State Street SPDR Portfolio S&P 400 Mid Cap ETF (the Fund) seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of an index that tracks the performance of mid-capitalization exchange traded U.S. equity securities.
The fund tracks the S&P MidCap 400 Index, which comprises U.S. mid-capitalization stocks with market capitalizations between $8 billion and $22.7 billion, selected for liquidity and profitability and weighted by float-adjusted market capitalization. The fund employs a sampling strategy, purchasing a subset of index securities chosen to replicate the index's risk and return characteristics rather than holding all constituents. Because the fund samples rather than fully replicates the index, its returns may diverge from the index.
What you own
| Company | Weight | Value | Shares | Reported price |
|---|---|---|---|---|
GVMXXState Street Global Advisors | 2.93% | $539.25M | — | — |
TWLOTwilio Inc | 0.86% | $158.51M | 768.2K | $206.33 |
0.84% | $155.13M | 251.5K | $616.84 | |
MKSIMKS Inc | 0.83% | $152.08M | 341.9K | $444.80 |
0.77% | $141.68M | 187.0K | $757.76 | |
ENTGEntegris Inc | 0.76% | $138.84M | 771.9K | $179.86 |
nVent Electric PLC | 0.76% | $138.84M | 818.6K | $169.61 |
ATIATI Inc | 0.74% | $136.15M | 690.8K | $197.10 |
ILMNIllumina Inc | 0.73% | $134.66M | 765.9K | $175.83 |
TechnipFMC PLC | 0.73% | $133.80M | 2.0M | $66.30 |
Reported price is the fund's own reported value divided by its own reported shares at 2026-06-30 — not a live quote, and not what the fund paid.
The 200 largest of 402 holdings, with the share counts as filed, open with a free account.
What the fund is made of
Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.
| Stocks | 99.81% |
| Cash & short-term | 2.93% |
| Derivatives | 0.00% |
Derivatives are shown at market value, not notional exposure.
By sector
- Industrials
- 24.7%
- Information Technology
- 15.1%
- Financials
- 13.9%
- Consumer Discretionary
- 10.1%
- 10 other sectors
- 36.3%
- Industrials
- 24.7%
- Information Technology
- 15.1%
- Financials
- 13.9%
- Consumer Discretionary
- 10.1%
- Health Care
- 8.0%
- Real Estate
- 6.5%
- Materials
- 5.6%
- Energy
- 4.0%
- Consumer Staples
- 3.1%
- Utilities
- 3.0%
- Cash
- 2.9%
- International
- 1.9%
- Communication Services
- 1.5%
- Other
- 0.0%
How it has done
SPMD share class · total returns with dividends reinvested
Volatility over the last 12 months: 11.19%. Past returns are a record, not a forecast.
Jun 2026 has been filed since the trailing figures were struck, so it is not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
Fees & fund details
State Street(R) SPDR(R) Portfolio S&P 400(TM) Mid Cap ETF is a U.S. equity index ETF that tracks the S&P MidCap 400 Index. 18% of SPMD’s stock holdings are in companies whose revenue grew in the top quartile of U.S. companies over the last five fiscal years (covering 93% of the fund’s equity).
- Asset class
- Equity
- Region
- United States
- Management
- Index (passive)
- Fund type
- ETF
- Expense ratio, by class
- 0.03%· SPMD 0.03%
- Portfolio turnover
- 13.00% a year · as of 2025 Q4
Turnover is how much of the portfolio was replaced in a year.
Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.
What changed this quarter
Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.
9 new· the largest 8
9 exited· the largest 8
Understand how this fund fits with the rest.
Explore shared holdings, compare funds and follow their businesses with your connected AI:
- “Where do my funds overlap — SPMD, QQQ and the fund in my 401(k)?”
- “How do this fund’s ten biggest holdings stack up against each other?”
- “For my target-date fund, what’s the real stock-and-bond mix once you look through it?”