# MDY (SPDR S&P MidCap 400 ETF Trust) State Street · Stock ETFs · U.S. mid-cap blend · data as of Oct 28, 2026 MDY returned +12.8% over the year to Oct 28, 2026, charges 0.23% a year and holds $25.9bn in net assets on Oct 27, 2026. Promise check: Not measured. No other ETF tracks the index it names, so its tracking cannot be measured. https://etfiq.com/promise-index/stocks/ MDY tracks the S&P MidCap 400 and returned +12.8% over the past year. ## Key facts - MDY, total return, 1 year: +12.8%, as of Oct 28, 2026. - MDY, expense ratio: 0.23%, as of Jan 28, 2026. - MDY, holdings: 401, as of Oct 27, 2026. - MDY, below its high: −6.5%, as of Oct 28, 2026. - MDY, 12-month yield, capital gains included, on its starting price: 1.2%, as of Oct 28, 2026. - MDY, last payment (paid quarterly), ex-date Sep 18, 2026: $1.6035, as of Sep 18, 2026. - MDY, net assets: $25.9bn (the issuer’s own daily fund list, as of Oct 27, 2026). ## MDY over each window to Oct 28, 2026 | Window | Total return | Benchmark (IJH) | Gap to IJH | S&P 500 (SPY) | | --- | --- | --- | --- | --- | | 1 month | +1.2% | +1.3% | −0.1 pts | +0.9% | | 3 months | −1.6% | −1.5% | −0.1 pts | +6.1% | | 6 months | +2.9% | +3.1% | −0.2 pts | +9.1% | | Year to date | +11.7% | +12.0% | −0.3 pts | +14.1% | | 1 year | +12.8% | +13.2% | −0.4 pts | +13.6% | | 3 years | +63.0% | +64.5% | −1.5 pts | +95.0% | | 5 years | +39.7% | +41.4% | −1.7 pts | +79.8% | | 10 years | +178.2% | +184.1% | −5.9 pts | +325.8% | | Since launch | +2,675.2% | not available | not available | +2,454.2% | | Since launch, annualised | +11.1% | – | – | – | ## MDY key stats - 52-week high, daily closes to Oct 28, 2026: $716.91 on Aug 14, 2026 (computed by ETFIQ from Tiingo daily prices) - 52-week low, daily closes to Oct 28, 2026: $568.63 on Nov 20, 2025 (computed by ETFIQ from Tiingo daily prices) - Close on Oct 28, 2026, within that range: $668.94, 68% of the way from the low to the high (computed by ETFIQ from Tiingo daily prices) - Beta to its benchmark, 1 year: 0.99, against IJH (computed by ETFIQ from Tiingo daily prices) - R-squared, the same days: 1.00 (computed by ETFIQ from Tiingo daily prices) - Beta and R-squared measured over: 251 daily total returns, Oct 29, 2025 to Oct 28, 2026 (computed by ETFIQ from Tiingo daily prices) - Holdings: 401 - Top ten weight: 7.5% ## MDY trading - Not scored. - Premium to NAV at the Oct 27 close: +0.02%; 95% of days within ±0.07%. - The full trading page: https://etfiq.com/funds/mdy/trading/ ## Every published field | Field | Value | Source | | --- | --- | --- | | What it tracks | S&P MidCap 400 Index | ETFIQ | | Fund type | Equity fund | ETFIQ | | Category | Stocks · U.S. mid-cap blend | ETFIQ | | Expense ratio | 0.23% | 485BPOS, Jan 28, 2026 | | Price | $668.94 | ETFIQ | | First traded | May 4, 1995 | ETFIQ | | Net assets | $25.9bn | the issuer’s own daily fund list, as of Oct 27, 2026 | | Benchmark | S&P MidCap 400 Index, measured by IJH, which tracks the same index | ETFIQ, from its filings | | Benchmark named in | its prospectus, 497, Jan 29, 2026 | ETFIQ | | MDY, 1 year to Oct 28, 2026 | +12.8% | ETFIQ | | IJH, the same days | +13.2% | ETFIQ | | Against its benchmark, 1 year | −0.4 pts | ETFIQ | | Below its high | −6.5% | ETFIQ | | Holdings | 401 | ETFIQ | | Top ten weight | 7.5% | ETFIQ | | Holdings published for | Oct 27, 2026 | the issuer’s daily file | | Holdings as of the close of | Oct 27, 2026 | the issuer’s daily file | | Already in the S&P 500, by weight | 0.0% | ETFIQ | | Active share vs the S&P 500 | 100.0% | ETFIQ | | Already in the Nasdaq-100, by weight | 0.0% | ETFIQ | ## Money in and out, to Oct 23, 2026 | Window | Dates | Net flow | | --- | --- | --- | | 1 week | Oct 21, 2026 to Oct 23, 2026 | +$33.1m | | 1 month | Sep 28, 2026 to Oct 23, 2026 | +$170m | | 3 months | Jul 28, 2026 to Oct 23, 2026 | +$201m | | Year to date | Jan 2, 2026 to Oct 23, 2026 | −$831m | | 1 year | Oct 28, 2025 to Oct 23, 2026 | −$339m | Computed by ETFIQ from the change in shares outstanding times the previous day’s NAV. Every day and month: . Method: https://etfiq.com/methodology/flows ## Questions ### How has MDY performed? Over the year to Oct 28, 2026, MDY returned +12.8% with distributions reinvested, against +13.2% for its benchmark, the S&P MidCap 400 Index. Over three years the number is +63.0%. ### What does MDY cost? The prospectus expense ratio is 0.23% a year. ### What does MDY hold? 401 positions as published by its issuer for Oct 27, 2026, with the top ten at 7.5% of the fund. 0% of its weight is in stocks the S&P 500 also holds. ### How far is MDY below its high? 6.5% below its high of Aug 14, 2026, measured on the reinvested series to Oct 28, 2026. ## Cite this page ETFIQ, MDY, stock fund, data as of Oct 28, 2026. https://etfiq.com/funds/mdy Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms. The underlying files are at . HTML: https://etfiq.com/funds/mdy · JSON: https://etfiq.com/funds/mdy.json