SPDR® S&P MIDCAP 400 ETF Trust (MDY)

Look-through valuation · US market · Expense ratio 0.24 % · ISIN US78467Y1073

MDY SPDR® S&P MIDCAP 400 ETF Trust MDY overvalued

Holdings vs fair value −56.1 % weighted average

Quality 62/100 avg alpha quality

Expense ratio 0.24 % per year (TER)

Fund size $ 27.4B yield 1.00 %

Coverage note: For this fund our data provider discloses only a small part of the positions, the look-through covers just 27 % of the weight so far. Read the average with caution.

Price history (since 1995)

Monthly close since 1995. Price shows performance, the valuation verdict is in the look-through above.

Top holdings

Holding	Weight	vs fair value	Quality
Flex Ltd FLEX	1.6 %	−65.5 %	63
Twilio Inc TWLO	0.8 %	−79.7 %	70
TechnipFMC PLC FTI	0.8 %	−61.9 %	79
Curtiss-Wright Corporation CW	0.8 %	−67.7 %	74
nVent Electric PLC NVT	0.8 %	−73.7 %	69
Sterling Construction Company Inc STRL	0.8 %	−70.3 %	63
XPO Logistics Inc XPO	0.7 %	−74.2 %	53
Everpure, Inc. P	0.7 %	−80.0 %	54
Illumina Inc ILMN	0.7 %	−49.0 %	82
United Therapeutics Corporation UTHR	0.7 %	+21.2 %	73
Allegheny Technologies Incorporated ATI	0.7 %	−80.0 %	69
MACOM Technology Solutions Holdings Inc MTSI	0.7 %	−78.9 %	59
Fabrinet FN	0.7 %	−67.6 %	57
Carpenter Technology Corporation CRS	0.7 %	−80.0 %	70
MasTec Inc MTZ	0.7 %	−71.7 %	58
MKS Instruments Inc MKSI	0.6 %	−78.3 %	60
Entegris Inc ENTG	0.6 %	−77.7 %	55
Okta Inc OKTA	0.6 %	−79.6 %	71
Woodward Inc WWD	0.6 %	−68.9 %	70
Burlington Stores Inc BURL	0.6 %	−57.4 %	58
Lattice Semiconductor Corporation LSCC	0.6 %	−56.3 %	61
Alcoa Corp AA	0.6 %	−32.7 %	44
Reliance Steel & Aluminum Co RS	0.6 %	−43.2 %	68
RB Global Inc. RBA	0.6 %	−55.9 %	51
Synnex Corporation SNX	0.6 %	−17.2 %	64

Fair value and quality per position come from the same valuation as our stock pages. Showing the 25 largest of 48 disclosed positions. "n/a" means the position is not (yet) in our stock universe and does not enter the average.

How the look-through works

An ETF has no fair value of its own like a single stock. We build it bottom up: every holding has a fair value and a quality score on our pages. Weighted by portfolio share, that gives SPDR® S&P MIDCAP 400 ETF Trust an average of how cheap or expensive its companies currently sit versus fair value, and how high their average quality is.

As of: Jul 17, 2026

No investment advice, no buy or sell recommendation. The look-through is a computed summary of public fundamentals and is no substitute for your own research.