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MDY correlations (SPDR S&P MidCap 400 ETF)

Which assets move with MDY and which ones diversify it, computed from weekly returns across 4756 stocks and ETFs.

Data as of 2026-08-27 · refreshed every trading day · US Small & Mid Cap

Volatility (ann.)
16.5%
3y weekly
Beta vs S&P 500
0.91
3y weekly
1-year return
+18.3%
price, adjusted
5-year return
+47.5%
price, adjusted
Expense ratio
0.23%
annual
Assets
$26.5B
under management
Dividend yield
1.02%
trailing
Max drawdown
-24.0%
3y, daily closes
-4%0%+20%2025-09-052026-08-27
MDY over the last 12 months, weekly closes indexed to 100 at the start.

Stocks and ETFs most correlated with MDY

AssetCorrelation (3Y)
IWMiShares Russell 2000 ETF0.95
RSPInvesco S&P 500 Equal Weight ETF0.95
RVTRoyce Small-Cap Trust, Inc.0.92
VTVVanguard Value ETF0.91
VYMVanguard High Dividend Yield ETF0.90
RMTRoyce Micro-Cap Trust, Inc.0.89
XLIIndustrial Select Sector SPDR Fund0.89
DGROiShares Core Dividend Growth ETF0.89
SPYVSPDR Portfolio S&P 500 Value ETF0.89
VIGVanguard Dividend Appreciation ETF0.87
DIASPDR Dow Jones Industrial Average ETF0.86
GDVGabelli Dividend & Income Trust0.86
VTVanguard Total World Stock ETF0.85
GGZGabelli Global Small and Mid Cap Value Trust (The)0.84
VTIVanguard Total Stock Market ETF0.84

Best diversifiers for MDY

If the goal is offsetting MDY, these tracked assets have historically moved the most on their own terms.

AssetCorrelation (3Y)
VXXiPath Series B S&P 500 VIX Short-Term Futures ETN-0.73
VXZiPath Series B S&P 500 VIX Mid-Term Futures ETN-0.72
FNGDMicroSectors FANG Index -3X Inverse Leveraged ETNs due-0.51
TCRTAlaunos Therapeutics, Inc.-0.15
NVNINvni Group Limited-0.14
WHLRWheeler Real Estate Investment Trust, Inc.-0.14
MXCMexco Energy Corporation-0.14
SPRBSpruce Biosciences, Inc.-0.13
LANVLanvin Group Holdings Limited-0.13
LICNLichen International Limited - Class A-0.13

MDY vs benchmarks

MDY vs SPY 0.80 MDY vs QQQ 0.67

MDY vs its peers

MDY vs IWM 0.95

Get MDY data as JSON

Free API · no key required
$ curl https://www.pairbook.io/api/v1/symbols/mdy.json

Correlations, diversifiers, beta and volatility for MDY, plus one endpoint per pair. API documentation.

MDY holdings overlap with other ETFs

ETFOverlapCorrelation (3Y)
MDY vs IWMiShares Russell 2000 ETF11.6%0.95
MDY vs VNQVanguard Real Estate ETF7.0%0.72
MDY vs IBBiShares Biotechnology ETF5.2%0.62
MDY vs VTIVanguard Total Stock Market ETF4.9%0.84
MDY vs VYMVanguard High Dividend Yield ETF4.4%0.90
MDY vs DGROiShares Core Dividend Growth ETF4.0%0.89
MDY vs VTVanguard Total World Stock ETF3.8%0.85
MDY vs SCHDSchwab US Dividend Equity ETF3.5%0.79
MDY vs VIGVanguard Dividend Appreciation ETF3.1%0.87
MDY vs IEFAiShares Core MSCI EAFE ETF1.7%0.73
MDY vs EFAiShares MSCI EAFE ETF1.6%0.72
MDY vs VEAVanguard FTSE Developed Markets ETF1.6%0.74
MDY vs SOXXiShares Semiconductor ETF1.4%0.65
MDY vs ACWIiShares MSCI ACWI ETF1.2%0.83
MDY vs MTUMiShares MSCI USA Momentum Factor ETF1.1%0.72
MDY vs USMViShares MSCI USA Min Vol Factor ETF0.7%0.74
MDY vs VWOVanguard FTSE Emerging Markets ETF0.5%0.62
MDY vs EEMiShares MSCI Emerging Markets ETF0.4%0.60
MDY vs ICLNiShares Global Clean Energy ETF0.4%0.49
MDY vs IEMGiShares Core MSCI Emerging Markets ETF0.4%0.61
MDY vs QUALiShares MSCI USA Quality Factor ETF0.4%0.80
MDY vs VUGVanguard Growth ETF0.1%0.64
MDY vs DIASPDR Dow Jones Industrial Average ETF0%0.86
MDY vs EWJiShares MSCI Japan ETF0%0.65
MDY vs FXIiShares China Large-Cap ETF0%0.31
MDY vs IVViShares Core S&P 500 ETF0%0.80
MDY vs QQQInvesco QQQ Trust0%0.67
MDY vs QQQMInvesco Nasdaq 100 ETF0%0.67
MDY vs RSPInvesco S&P 500 Equal Weight ETF0%0.95
MDY vs SPYSPDR S&P 500 ETF Trust0%0.80
MDY vs SPYGSPDR Portfolio S&P 500 Growth ETF0%0.66
MDY vs SPYVSPDR Portfolio S&P 500 Value ETF0%0.89
MDY vs VOOVanguard S&P 500 ETF0%0.80
MDY vs VTVVanguard Value ETF0%0.91
MDY vs XLBMaterials Select Sector SPDR Fund0%0.81
MDY vs XLCCommunication Services Select Sector SPDR Fund0%0.58
MDY vs XLEEnergy Select Sector SPDR Fund0%0.33
MDY vs XLFFinancial Select Sector SPDR Fund0%0.79
MDY vs XLIIndustrial Select Sector SPDR Fund0%0.89
MDY vs XLKTechnology Select Sector SPDR Fund0%0.63
MDY vs XLPConsumer Staples Select Sector SPDR Fund0%0.46
MDY vs XLREReal Estate Select Sector SPDR Fund0%0.69
MDY vs XLUUtilities Select Sector SPDR Fund0%0.37
MDY vs XLVHealth Care Select Sector SPDR Fund0%0.51
MDY vs XLYConsumer Discretionary Select Sector SPDR Fund0%0.71