MDYG — State Street SPDR S&P 400 Mid Cap Growth ETF

MDYG Price Performance — Growth of $10,000

Value of a $10,000 investment in MDYG 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.

MDYG Drawdown

The "underwater" chart: MDYG'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.

Overview

The State Street SPDR S&P 400 Mid Cap Growth ETF (MDYG) is a US Mid Cap fund managed by State Street Investment Management. With assets under management totaling $2.92 billion and a share price of $105.32, the fund demonstrates significant investor adoption within its sector. It holds an overall rank of #306 out of 458 tracked ETFs across all categories and carries an ETFValuer grade of C with a score of 56.6 out of 100. The fund charges an expense ratio of 0.15% and offers a dividend yield of 0.57%. This ranking places it below the median among the 14 ETFs ETFValuer tracks in the US Mid Cap category. The combination of substantial assets and a mid-tier grade suggests a well-established vehicle that faces stiff competition within its specific classification.

Recent performance data shows a decline over the shortest horizons, with the fund dropping 2.17% in one day and 2.45% over one week. A further decline of 4.83% occurred over the one-month period, contrasting sharply with a 2.69% gain recorded over three months. The six-month return accelerated to +7.53%, while year-to-date performance reached +12.49%. Over the past year, the fund generated a return of +17.58%, and the three-year return stands at +47.73%. This trajectory indicates a pattern where short-term losses have been offset by stronger gains over longer holding periods. Closest category peers by rank include VOE with a +24.03% one-year return and IWS with a +24.81% one-year return.

The fund carries a Moderate volatility label and a beta of 1.04, indicating price movements that are slightly more sensitive than the broader market. A Sharpe ratio of 0.71 suggests the fund has generated a moderate amount of excess return per unit of risk taken. The maximum drawdown of -25.45% highlights the potential for significant temporary losses during market downturns. This combination of figures implies that while the fund participates actively in market rallies, it also exposes investors to substantial downside risk during corrections. The beta above 1.00 aligns with the fund's classification as a mid-cap growth vehicle, which typically exhibits higher sensitivity to market shifts. Investors should consider the -25.45% drawdown alongside the 0.71 Sharpe ratio when evaluating the risk-adjusted return profile.

AI-generated summary based on the data on this page.

MDYG Top Holdings

Holdings as of 2026-03-31 per the fund's most recent SEC N-PORT-P filing. Top 10 holdings make up 16.0% of net assets — a rough gauge of concentration risk (the higher this figure, the more the fund's return depends on a handful of names). To see how MDYG's holdings overlap with other ETFs you own or are considering, check the Stock Overlap tool.

Which Funds Overlap With MDYG

Holding two funds that own the same companies adds cost and complexity without adding much diversification. These tracked ETFs share the most names with MDYG's top 10 — SPMD overlaps most, holding 9 of the same companies as MDYG's top 10 (14.7% of MDYG's assets).

Compares the top 10 reported holdings of each fund, so it's a floor on true overlap — two S&P 500 trackers overlap ~100% even when only 10 names are listed. Use the Stock Overlap tool to search by individual company.

Market Backdrop

10-Year Treasury Yield: 4.61% (as of 2026-07-28) — 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): 18.21 (as of 2026-07-28) — 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: 3.63% (as of 2026-06-01) — The Federal Reserve’s target policy rate, which anchors short-term borrowing costs across the economy.

MDYG Liquidity, Domicile & Tax Treatment

Liquidity: Quoted bid/ask spread is 0.08% and average daily volume is 86K/day. Tighter spreads and higher volume mean lower round-trip trading costs; this is a live-market snapshot and can widen during volatile sessions. AUM of $2.92B provides ample scale, supporting tight spreads and issuer commitment to keep the fund open.

Domicile & tax treatment: MDYG 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.

MDYG Performance History

How MDYG Compares to Other US Mid Cap ETFs