MDY — State Street SPDR S&P MIDCAP 400 ETF Trust
US Mid Cap Ranked #228 of 458 tracked ETFs · Issued by State Street Investment Management
MDY Price Performance — Growth of $10,000
Value of a $10,000 investment in MDY over time, compared with SPY. Both lines are rebased to $10,000 on the first shared date. Based on total returns — prices are adjusted for dividends and splits, so this assumes distributions were reinvested. Hover or tap the chart for exact values.
MDY Drawdown
The "underwater" chart: MDY's decline from its highest prior value at each point in time. It shows how deep past losses ran and how long the fund took to recover to break-even.
What If You'd Invested in MDY?
See what a lump sum in MDY would have grown to, with the option to add a regular monthly contribution on top. Figures use total returns — dividends are assumed reinvested.
Past performance doesn't predict future results. Assumes contributions on the first trading day of each month, no trading costs or taxes, and reinvested distributions. History is limited to the range published in the site's daily return data.
Overview
The State Street SPDR S&P Midcap 400 ETF Trust is a US Mid Cap fund managed by State Street Investment Management with $25.2 billion in assets. It holds an overall rank of #228 out of 458 tracked ETFs and sits at #9 of 14 within its specific category. The fund receives an ETFValuer grade of C, reflecting a score of 60.0 out of 100. Its expense ratio of 0.23% exceeds the category median of 0.15%, while its dividend yield of 1.06% trails the category median of 1.27%. Holdings breakdown data is not available for this fund.
The fund's price of $663.94 places it at 64.2% of its 52-week range, indicating a position closer to the upper end of its recent trading history. Short-term performance shows a divergence, with a 1-month return of -3.12% contrasting against a 1-year gain of +11.58%. This 1-year result falls slightly below the category median return of +11.91%. The rating has remained unchanged at grade C over the last 35 tracked days. Historical price data is available for 3.0 years.
With a beta of 1.00, the fund moves in line with the broader market. It exhibits moderate volatility at 15.42% annualized and has experienced a maximum drawdown of -24.03%. The Sharpe ratio of 0.43 suggests a modest risk-adjusted return profile. Liquidity is supported by an average daily volume of 599,293 shares. These metrics collectively describe the fund's historical behavior without predicting future market conditions.
AI-generated summary based on the data on this page.
Market Backdrop
10-Year Treasury Yield: 5.27% (as of 2026-10-06) — The yield on 10-year US Treasury bonds — the standard "risk-free rate" benchmark used to contextualize this fund’s Sharpe ratio and returns.
CBOE Volatility Index (VIX): 15.01 (as of 2026-10-06) — A real-time gauge of expected S&P 500 volatility over the next 30 days — useful context for this fund’s own volatility label.
Federal Funds Rate: 3.75% (as of 2026-09-01) — The Federal Reserve’s target policy rate, which anchors short-term borrowing costs across the economy.
What MDY's Fees Cost You
MDY charges an expense ratio of 0.23% a year, deducted automatically from the fund's value. Small percentages compound into real money — adjust the figures below to see the impact on your own numbers.
Assumes a constant gross return and no additional contributions — a simplification, but it isolates exactly what the expense ratio costs. Try the full fee calculator to model contributions and compare any two funds.
MDY Dividend Income Estimator
MDY currently yields 1.06%. Enter an amount to see the income that implies, or set a monthly income target to see the investment it would take.
Based on the fund's current trailing yield, which varies with price and distributions — treat it as an estimate, not a guarantee. Yields are not adjusted for tax.
MDY Liquidity, Domicile & Tax Treatment
Liquidity: Average daily volume is 599K/day. Higher volume and a larger fund generally mean lower round-trip trading costs. AUM of $25.2B provides ample scale, supporting tight spreads and issuer commitment to keep the fund open.
Domicile & tax treatment: MDY is a US-domiciled, SEC-registered ('40 Act) exchange-traded fund. Dividends and capital gains distributions are reported to US investors on Form 1099-DIV, and the fund is not subject to the PFIC reporting or UCITS-specific rules that apply to Irish- or Luxembourg-domiciled funds. Non-US investors should note that US-domiciled ETFs are generally subject to 30% US withholding tax on dividends (unless reduced by treaty) and to US estate tax exposure on the position — Irish-domiciled UCITS ETFs tracking the same index often avoid both, which is why non-US residents frequently prefer the UCITS equivalent where one exists. This is general information, not tax advice — consult a tax professional for your situation.
MDY Performance History
| Period | Return |
|---|---|
| 1-Day | -1.64% |
| 1-Week | +1.10% |
| 1-Month | -3.12% |
| 3-Month | -3.58% |
| 6-Month | +3.65% |
| YTD | +9.41% |
| 1-Year | +11.58% |
| 3-Year | +53.31% |
How MDY Compares to Other US Mid Cap ETFs
| Rank | Grade | Ticker | Name | 1-Year | Exp. Ratio | AUM |
|---|---|---|---|---|---|---|
| #48 | B+ |
VOE | Vanguard Morningstar Mid-Cap Value ETF | +16.06% | 0.05% | $36.7B |
| #108 | B |
IWS | iShares Russell Mid-Cap Value ETF | +17.32% | 0.23% | $14.8B |
| #146 | B |
VO | Vanguard Morningstar Mid-Cap ETF | +9.66% | 0.03% | $216B |
| #150 | B |
IWR | iShares Russell Mid-Cap ETF | +12.87% | 0.18% | $54.9B |
| #166 | B |
SCHM | Schwab U.S. Mid-Cap ETF | +15.94% | 0.03% | $14.3B |
| #185 | C |
IJH | iShares Core S&P Mid-Cap ETF | +11.87% | 0.05% | $121B |
| #206 | C |
SPMD | State Street SPDR Portfolio S&P 400 Mid Cap ETF | +11.96% | 0.03% | $17.9B |
| #211 | C |
IJK | iShares S&P Mid-Cap 400 Growth ETF | +15.57% | 0.16% | $10.3B |
| #228 | C |
MDY | State Street SPDR S&P MIDCAP 400 ETF Trust | +11.58% | 0.23% | $25.2B |
| #230 | C |
MDYG | State Street SPDR S&P 400 Mid Cap Growth ETF | +15.72% | 0.15% | $2.79B |
| #276 | C |
IJJ | iShares S&P Mid-Cap 400 Value ETF | +8.05% | 0.18% | $8.33B |
| #291 | C |
VOT | Vanguard Morningstar Mid-Cap Growth ETF | +1.75% | 0.05% | $33.2B |
| #305 | C |
MDYV | State Street SPDR S&P 400 Mid Cap Value ETF | +8.01% | 0.15% | $2.66B |
| #373 | D |
IWP | iShares Russell Mid-Cap Growth ETF | -1.10% | 0.23% | $19.3B |