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State Street SPDR S&P MIDCAP 400 ETF Trust (MDY)

$696.77 +$3.08 (+0.44%) |CouncilHOLD · 47 · C
Bottom line: HOLD — our Council read (47/100) and AI Score (47/100) broadly agree.
MCap: $26.51B| Vol: 239.8K|
Data from FMP · Methodology

For informational purposes only. Not financial advice. Analysis by Sedat ANAK, Founder & Editor-in-Chief | AI-powered analysis. Data sourced from SEC filings and institutional-grade financial providers. Editorially reviewed. Not financial advice.

State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) trades at $696.77 with AI Score 47/100 (Grade C). The State Street SPDR S&P MidCap 400 ETF Trust (MDY) is an exchange-traded fund designed to track the performance of the S&P MidCap 400 Index. Market cap: $26.51B, Sector: Financial services.

Price live · AI analysis from Jun 15, 2026
The State Street SPDR S&P MidCap 400 ETF Trust (MDY) is an exchange-traded fund designed to track the performance of the S&P MidCap 400 Index. It offers diversified exposure to approximately 400 mid-sized U.S. companies across various sectors, aiming to reflect both capital appreciation and dividend income before expenses.

Analyst Coverage for MDY: MDY does not currently have published analyst price targets in our coverage universe. This is common for smaller-cap names with limited Wall Street coverage. In the absence of analyst consensus, our AI model evaluates MDY against Financial Services peers across nine fundamental dimensions and assigns an underweight signal based on the underlying data.

Council Score · Weighted Average of 3 Disciplines
HOLD 47/100 · C

MDY: the 1 perspectives are evenly split.

How is this calculated? →
Council Score · 8 perspectives · See tabs for details →

State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) Financial Services Profile

HeadquartersNew York City, US
IPO Year1995

The State Street SPDR S&P MidCap 400 ETF Trust (MDY) offers investors exposure to the performance of approximately 400 U.S. mid-sized companies. As an exchange-traded fund, it aims to replicate the capital appreciation and dividend income of the S&P MidCap 400 Index, providing diversified access to a key segment of the domestic equity market.

Data Provenance | Financial Data Quantitative Analysis NASDAQ Analysis: Jun 15, 2026

What Is the Investment Thesis for MDY?

The State Street SPDR S&P MidCap 400 ETF Trust (MDY) presents a mechanism for investors to gain diversified exposure to the U.S. mid-capitalization equity market. With a substantial market capitalization of $26.51B, MDY tracks the S&P MidCap 400 Index, which comprises approximately 400 mid-sized U.S. companies. This broad diversification across numerous holdings and various sectors helps mitigate company-specific risk. The fund's beta of 1.04 indicates that it has historically exhibited slightly higher volatility than the broader market, which is characteristic of the mid-cap segment. Growth catalysts for MDY are intrinsically linked to the performance of its underlying index and the broader economic environment, particularly periods of robust economic expansion where mid-cap companies often demonstrate strong earnings growth. Value drivers include its low-cost structure typical of passive ETFs and its ability to provide efficient access to a market segment that can offer a balance of growth potential and relative stability. However, investors should note the fund's susceptibility to economic downturns, as mid-cap companies can be more sensitive to economic fluctuations than their large-cap counterparts.

Based on FMP financials and quantitative analysis

MDY Key Highlights

  • Market Capitalization: $26.67 billion, reflecting significant assets under management for broad market exposure.
  • Beta: 1.04, indicating slightly higher volatility compared to the overall market, typical for mid-cap equities.
  • Dividend Yield: None, as the fund's primary objective is capital appreciation and dividend income is reinvested or passed through without a fixed yield.
  • Diversification: Holds approximately 400 U.S. mid-sized companies, significantly reducing single-stock risk.
  • Index Tracking: Designed to mirror the performance of the S&P MidCap 400 Index, providing transparent and consistent investment objectives.

Who Are MDY's Competitors?

MDY is benchmarked below against 8 industry peers on price, market cap, and our AI MoonshotScore.

Company Price Change Market Cap AI Score
DYNF iShares U.S. Equity Factor Rotation Active ETF $67.76 +0.94% $37.88B 44
CGDV Capital Group Dividend Value ETF $49.16 +0.44% $35.33B 49
ACWI iShares MSCI ACWI ETF $157.72 +1.00% $33.29B 44
XLI State Street Industrial Select Sector SPDR ETF $185.48 +0.85% $33.86B 47
IDEV iShares Core MSCI International Developed Markets ETF $90.41 +0.95% $31.04B 47
NXDT NexPoint Diversified Real Estate Trust $5.53 +3.08% $285.77M 73
GENB Generate Biomedicines, Inc. $17.03 -2.18% $2.18B 72
SII Sprott Inc. $118.11 +2.72% $3.05B 71

AI Score by Stock Expert AI · Price data: FMP / Yahoo Finance

What Are MDY's Key Strengths?

  • Diversification across approximately 400 mid-sized U.S. companies, reducing single-stock risk.
  • Low expense ratio inherent to passive index-tracking ETFs, making it cost-efficient for investors.
  • High liquidity due to its ETF structure and significant assets under management ($26.67B).
  • Strong brand recognition and distribution network of State Street Global Advisors.

What Are MDY's Weaknesses?

  • Performance is strictly tied to the S&P MidCap 400 Index, limiting potential for outperformance.
  • Mid-cap companies can be more susceptible to economic downturns than large-cap stocks.
  • No active management to adapt to changing market conditions or avoid underperforming sectors/companies.
  • Does not offer a fixed dividend yield, which may not appeal to income-focused investors.

What Could Drive MDY Stock Higher?

  • **Sustained Economic Growth:** Continued robust U.S. economic expansion, characterized by strong GDP growth and corporate earnings, is expected to positively impact the mid-cap companies within the S&P MidCap 400 Index. This environment typically fosters revenue growth and margin expansion for companies in this segment, driving the fund's performance.
  • **Increased ETF Inflows:** The ongoing global trend of investors shifting capital from actively managed funds to passive, low-cost ETFs is a continuous catalyst. As more investors seek efficient and transparent market exposure, MDY is positioned to benefit from sustained inflows, increasing its assets under management.
  • **Favorable Mid-Cap Market Cycles:** Historically, mid-cap stocks experience periods of outperformance relative to large-cap and small-cap equities. Should market conditions align to favor mid-caps, such as during the middle to late stages of an economic cycle, MDY could see enhanced capital appreciation.
  • **Diversification Demand:** Investors' persistent need for portfolio diversification beyond large-cap holdings continues to drive demand for mid-cap exposure. MDY provides a straightforward and liquid solution for this need, ensuring a steady base of investor interest.

What Are the Key Risks for MDY?

  • **Economic Downturns:** Mid-cap companies, while often more resilient than small-caps, can be more susceptible to economic recessions or significant slowdowns than large-cap firms. A weakening economic climate could lead to reduced corporate earnings and declining stock prices for MDY's holdings.
  • **Market Volatility:** As an equity ETF with a beta of 1.04, MDY is subject to general stock market volatility. Significant market corrections or bear markets would directly impact the fund's net asset value, reflecting the performance of its underlying mid-cap constituents.
  • **Index Concentration Risk:** Although diversified across 400 companies, the fund's performance is entirely dependent on the S&P MidCap 400 Index. Any adverse factors affecting a significant portion of the index's constituents or the mid-cap segment as a whole could negatively impact MDY.
  • **Tracking Error:** While MDY aims to closely replicate the S&P MidCap 400 Index, there is always a potential for tracking error due to factors like fund expenses, cash drag, or difficulties in fully replicating the index, which could lead to slight underperformance relative to the index.

What Are the Growth Opportunities for MDY?

  • Growth opportunity 1: **Increasing Adoption of Passive Investment Strategies** The global trend towards passive investing, particularly through ETFs, continues to gain momentum. Investors are increasingly favoring ETFs for their lower expense ratios, transparency, and liquidity compared to traditional mutual funds. This secular shift in investment preference is expected to drive sustained inflows into broad market index funds like MDY. As more institutional and retail investors allocate capital to passive vehicles for core portfolio exposure, MDY stands to benefit from its established position and efficient tracking of a widely recognized mid-cap index. The market for ETFs is projected to continue expanding significantly, providing a tailwind for MDY's asset growth.
  • Growth opportunity 2: **Mid-Cap Market Segment Outperformance Cycles** Historically, mid-capitalization stocks have experienced periods of outperformance relative to both large-cap and small-cap equities. These cycles are often driven by economic conditions that favor companies with established business models but still significant growth runways. Should the U.S. economy enter a phase where mid-cap companies are particularly well-positioned to capitalize on market trends, MDY, by tracking the S&P MidCap 400 Index, would directly benefit from the capital appreciation of its underlying holdings. Investors actively seeking to diversify their portfolios and capture potential alpha from specific market segments may increase their allocations to mid-cap focused ETFs like MDY, driving demand.
  • Growth opportunity 3: **Diversification and Core Portfolio Allocation** Investors are continuously seeking ways to construct diversified portfolios that can withstand various market conditions. Mid-cap exposure, as provided by MDY, offers a valuable diversification component that can complement large-cap holdings, potentially enhancing risk-adjusted returns. As financial advisors and institutional investors refine their asset allocation strategies, the role of mid-cap funds as a core or satellite holding is often emphasized. MDY's broad exposure to 400 companies across diverse sectors makes it a noteworthy option for those looking to achieve this specific market segment exposure efficiently, contributing to its long-term asset growth.
  • Growth opportunity 4: **Economic Expansion and Corporate Earnings Growth** Mid-cap companies often demonstrate a strong correlation with the overall health and expansion of the U.S. economy. During periods of robust economic growth, these companies, which are typically beyond the startup phase but still possess significant growth potential, can experience accelerated revenue and earnings growth. As the economic outlook improves, corporate profits across the S&P MidCap 400 Index constituents are likely to rise, translating into higher stock prices and, consequently, improved performance for MDY. This direct linkage to macroeconomic trends positions MDY to benefit from sustained periods of economic prosperity and corporate profitability.
  • Growth opportunity 5: **Accessibility and Liquidity for Investors** As an exchange-traded fund, MDY offers unparalleled accessibility and liquidity compared to other investment vehicles. It trades on major stock exchanges throughout the day, allowing investors to buy and sell shares at market prices, similar to individual stocks. This ease of trading, combined with its transparent holdings and low expense ratio, makes MDY a noteworthy option for a wide range of investors, from individual retail accounts to large institutional funds. The continuous growth in investor education and awareness regarding the benefits of ETFs further enhances MDY's appeal, expanding its potential investor base and increasing its assets under management over time.

What Opportunities Does MDY Have?

  • Continued growth in the adoption of passive investment strategies and ETFs by retail and institutional investors.
  • Potential for mid-cap outperformance cycles relative to large-cap or small-cap segments.
  • Increased demand for diversified core portfolio components that offer exposure to specific market segments.
  • Economic expansion leading to stronger earnings growth for mid-cap companies.

What Threats Does MDY Face?

  • Significant economic downturns or recessions disproportionately impacting mid-cap companies.
  • Increased competition from new or existing ETFs tracking similar mid-cap indices with potentially lower fees.
  • Shifts in investor sentiment away from mid-cap equities towards large-cap or small-cap segments.
  • Regulatory changes impacting the ETF industry or specific index methodologies.

What Are MDY's Competitive Advantages?

  • **Brand Recognition and Trust:** State Street Global Advisors is a well-established and respected name in the ETF industry, lending credibility and trust to MDY.
  • **First-Mover Advantage/Scale:** As one of the earliest and largest ETFs tracking the S&P MidCap 400, MDY benefits from significant assets under management ($26.67B), which can lead to lower operating costs per unit and tighter bid-ask spreads.
  • **Index Replication Efficiency:** The fund's passive strategy and deep experience in index tracking allow for highly efficient replication of the S&P MidCap 400 Index, minimizing tracking error.
  • **Liquidity:** High trading volumes and large AUM contribute to superior liquidity, making it easier and cheaper for investors to enter and exit positions.
  • **Diversification:** Its broad diversification across ~400 holdings inherently reduces company-specific risk, a key attraction for risk-averse investors.

What Does MDY Do?

The State Street SPDR S&P MidCap 400 ETF Trust (MDY) is an exchange-traded fund (ETF) managed by State Street Global Advisors, one of the world's largest asset managers and a pioneer in the ETF industry. Launched to provide investors with efficient access to the mid-capitalization segment of the U.S. equity market, MDY's primary objective is to deliver investment results that, before fees and expenses, generally correspond to the total return performance of the S&P MidCap 400 Index. This index is designed to measure the performance of the mid-capitalization sector of the U.S. equity market, typically comprising companies with market capitalizations between $2.4 billion and $8.2 billion, though these ranges can fluctuate. The fund achieves its objective by holding a diversified portfolio of stocks that are included in the S&P MidCap 400 Index, aiming to replicate the index's composition and weighting. This passive investment strategy means the fund does not attempt to outperform the index but rather to mirror its performance. Investors utilize MDY to gain exposure to a segment of the market that historically has offered a balance between the growth potential often associated with small-cap companies and the relative stability of large-cap firms. The fund's structure as an ETF provides liquidity, transparency, and cost-efficiency, making it a popular choice for both institutional and individual investors seeking broad, diversified exposure to U.S. mid-cap equities. Its headquarters are located in Boston, US, reflecting its deep roots within the American financial landscape.

What Products and Services Does MDY Offer?

  • Tracks the performance of the S&P MidCap 400 Index.
  • Invests in a diversified portfolio of approximately 400 mid-sized U.S. companies.
  • Aims to reflect both capital appreciation and dividend income of the underlying index.
  • Provides efficient, low-cost exposure to the U.S. mid-capitalization equity market.
  • Operates as a passively managed exchange-traded fund (ETF).
  • Offers intraday liquidity, allowing shares to be bought and sold throughout the trading day.
  • Managed by State Street Global Advisors, a leading global asset manager.

How Does MDY Make Money?

  • Generates revenue through an expense ratio charged to investors as a percentage of assets under management (AUM).
  • Employs a passive investment strategy, aiming to replicate the performance of the S&P MidCap 400 Index.
  • Benefits from economies of scale as AUM grows, leading to potentially higher profitability for the fund manager.
  • Provides a transparent and regulated investment product listed on a major stock exchange.

What Industry Does MDY Operate In?

The State Street SPDR S&P MidCap 400 ETF Trust operates within the highly competitive global asset management industry, specifically targeting the exchange-traded fund (ETF) segment. The ETF market has experienced significant growth, driven by investor demand for low-cost, transparent, and liquid investment vehicles. MDY is positioned within the U.S. equity ETF landscape, focusing on the mid-capitalization segment. This segment is often viewed as a 'sweet spot' by investors, offering greater growth potential than large-cap stocks while exhibiting less volatility than small-cap stocks. The broader trend in asset management points towards continued inflows into passive investment strategies, such as index-tracking ETFs, due to their cost-effectiveness and generally strong performance relative to actively managed funds. MDY competes with other index funds and ETFs that track mid-cap indices, as well as actively managed mutual funds and ETFs seeking to outperform this market segment. Its affiliation with State Street Global Advisors provides a strong brand presence and distribution network.

Who Are MDY's Key Customers?

  • Individual retail investors seeking diversified mid-cap exposure.
  • Financial advisors and wealth managers constructing client portfolios.
  • Institutional investors, including pension funds and endowments, for strategic asset allocation.
  • Day traders and short-term investors utilizing its intraday liquidity.
  • Investors looking for a cost-effective way to access the U.S. mid-cap equity market.
AI Confidence: 74% Updated: Jun 15, 2026

How State Street SPDR S&P MIDCAP 400 ETF Trust Is Valued

Relative to its peer group, MDY's quantitative score of 47/100 is roughly in line with the peer average of 46/100.

MDY Financials

Bull Case vs Bear Case

Bull Case

  • Diversification across approximately 400 mid-sized U.S. companies, reducing single-stock risk.
  • Low expense ratio inherent to passive index-tracking ETFs, making it cost-efficient for investors.
  • High liquidity due to its ETF structure and significant assets under management ($26.67B).
  • Strong brand recognition and distribution network of State Street Global Advisors.

Bear Case

  • Performance is strictly tied to the S&P MidCap 400 Index, limiting potential for outperformance.
  • Mid-cap companies can be more susceptible to economic downturns than large-cap stocks.
  • No active management to adapt to changing market conditions or avoid underperforming sectors/companies.
  • Does not offer a fixed dividend yield, which may not appeal to income-focused investors.

AI-generated arguments based on insider flow, news sentiment and technicals — not financial advice · July 2026

MDY Latest News

No recent news available for MDY.

MDY Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations from Benzinga, Yahoo Finance, and Finnhub for MDY.

Price Targets

Wall Street price target analysis for MDY.

MDY MoonshotScore

47/100

What does this score mean?

The MoonshotScore rates MDY's growth potential on a scale of 0-100 across multiple factors including innovation, market disruption, financial health, and momentum.

MDY Financial Services Stock FAQ

What is the primary investment objective of the State Street SPDR S&P MidCap 400 ETF Trust (MDY)?

The State Street SPDR S&P MidCap 400 ETF Trust (MDY) is designed with the primary investment objective of providing investment results that, before fees and expenses, generally correspond to the total return performance of the S&P MidCap 400 Index. This means the fund aims to replicate both the capital appreciation and dividend income generated by the mid-capitalization sector of the U.S. equity market. As a passively managed exchange-traded fund, MDY does not seek to outperform its benchmark but rather to mirror its performance, offering investors a transparent and efficient way to gain broad exposure to approximately 400 mid-sized U.S. companies across various industries.

How does MDY provide diversification within an investment portfolio?

MDY provides significant diversification by investing in a basket of approximately 400 mid-sized U.S. companies that constitute the S&P MidCap 400 Index. This broad exposure across numerous individual securities and a wide array of sectors, including industrials, consumer discretionary, financials, and information technology, inherently reduces company-specific risk. Instead of relying on the performance of a single stock, an investor in MDY gains exposure to the collective performance of a substantial segment of the U.S. economy. This diversification makes MDY a valuable component for investors seeking to balance their portfolios, complementing large-cap or small-cap holdings and potentially enhancing overall risk-adjusted returns by spreading investment risk.

What are the main risks associated with investing in the State Street SPDR S&P MidCap 400 ETF Trust (MDY)?

Investing in MDY carries several key risks inherent to equity investments and its specific market segment. A primary risk is its susceptibility to overall market volatility and economic downturns; mid-cap companies can be more sensitive to economic fluctuations than larger, more established corporations. Furthermore, while diversified, the fund's performance is entirely tied to the S&P MidCap 400 Index, meaning any adverse factors affecting the mid-cap segment or a significant portion of the index's constituents will directly impact MDY. There is also tracking error risk, where the fund's performance may deviate slightly from its benchmark due to expenses, sampling techniques, or market conditions. Investors should also consider that the fund does not actively manage its portfolio to mitigate specific company risks or market shifts, relying solely on index replication.

How does MDY's focus on mid-cap companies differentiate it from large-cap or small-cap funds?

MDY's focus on mid-capitalization companies positions it uniquely between large-cap and small-cap funds, offering distinct characteristics. Large-cap funds typically invest in established, often globally recognized companies with stable earnings, offering relative stability but potentially slower growth. Small-cap funds, on the other hand, target smaller companies with higher growth potential but also higher volatility and risk. MDY, by tracking the S&P MidCap 400 Index, invests in companies that have generally moved beyond the initial startup phase but still possess significant growth runways. This segment often provides a balance of growth potential and relative stability, potentially offering a 'sweet spot' for investors seeking a blend of both characteristics, making it a valuable diversifier for a comprehensive equity portfolio.

What are the key factors to evaluate for MDY?

State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) holds an AI score of 47/100 (low). Not financial advice.

How frequently does MDY data refresh on this page?

MDY prices update in real time during U.S. market hours. Fundamentals refresh after quarterly filings; analyst ratings and AI insights update daily; news is aggregated continuously.

What has driven MDY's recent stock price performance?

State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) moves on earnings results, analyst revisions, sector rotation, and market sentiment. Notable catalyst: Diversification across approximately 400 mid-sized U.S. companies, reducing single-stock risk. See the News tab for the latest drivers. Past performance does not predict future results.

Should investors consider MDY overvalued or undervalued right now?

Valuing State Street SPDR S&P MIDCAP 400 ETF Trust (MDY) requires multiple metrics. Compare P/E, P/S, and EV/EBITDA against sector peers for a full view.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Official Resources

Price as of Analysis updated AI Score refreshed daily
Data Sources & Methodology
Market data powered by Financial Modeling Prep & Yahoo Finance. AI analysis by Stock Expert AI proprietary algorithms. Technical indicators via industry-standard calculations. Last updated: .
Data Provenance
Sources: Financial Modeling Prep (FMP) — Primary · Yahoo Finance — Fallback · Alpaca — Tertiary
Last fetched:
Cache TTL: Quote 5min · Profile 7d · Financials 7d · Insider 48h
How we use AI: Numbers are pulled directly from FMP & Yahoo Finance — our AI writes the analysis, it never edits the figures.
Data provided as-is for educational purposes. Not financial advice. Methodology

Data provided for informational purposes only.

Analysis Notes
  • All information is derived directly from the provided source data and general knowledge about ETF structures and market segments.
  • The absence of specific historical performance data or detailed expense ratios in the source limits the depth of financial metric analysis beyond market cap and beta.
  • The FAQ regarding analyst consensus was omitted due to the lack of relevant data in the provided source, as per instructions.
Data Sources

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