S&P Midcap 400 Index (MID) Companies by Market Cap

The S&P Midcap 400 Index (MID) tracks 401 constituent companies with a combined market cap of $3.36 Trillion, covering the largest publicly traded companies in USA. This ranking lists all MID index holdings ordered by market capitalization — from the largest index heavyweights to smaller constituents. Updated daily with live market data.

Total Market Cap (USD)

$3.36 Trillion

Constituent Companies

401

Index Country

USA
Rank Company Weight (%) Market Cap (USD) Sector Industry Price 24h Change
1 Coherent Inc
NYSE:COHR 		0.34% $53.28 Billion Technology Scientific & Technical Instruments $329.50 +3.06%
2 Comfort Systems USA Inc
NYSE:FIX 		0.48% $47.20 Billion Industrials Engineering & Construction $1867.02 +1.45%
3 Ciena Corp
NYSE:CIEN 		0.33% $45.06 Billion Technology Communication Equipment $535.29 +1.46%
4 Lumentum Holdings Inc
NASDAQ:LITE 		0.15% $40.18 Billion Technology Communication Equipment $949.93 +5.28%
5 Interactive Brokers Group Inc
NASDAQ:IBKR 		0.71% $35.85 Billion Financial Services Capital Markets $80.46 +1.21%
6 EMCOR Group Inc
NYSE:EME 		0.69% $35.85 Billion Industrials Engineering & Construction $903.50 +1.33%
7 Caseys General Stores Inc
NASDAQ:CASY 		0.65% $28.11 Billion Consumer Cyclical Specialty Retail $835.92 +1.67%
8 Curtiss-Wright Corporation
NYSE:CW 		0.47% $26.05 Billion Industrials Aerospace & Defense $713.14 -0.98%
9 Flex Ltd
NASDAQ:FLEX 		0.45% $23.15 Billion Technology Electronic Components $91.70 +0.16%
10 XPO Logistics Inc
NYSE:XPO 		0.45% $22.76 Billion Industrials Trucking $215.28 -2.20%
11 Pure Storage Inc
NYSE:PSTG 		0.52% $22.11 Billion Technology Computer Hardware $66.97 -1.22%
12 Woodward Inc
NASDAQ:WWD 		0.39% $21.64 Billion Industrials Aerospace & Defense $362.99 +0.00%
13 United Therapeutics Corporation
NASDAQ:UTHR 		0.50% $21.42 Billion Healthcare Drug Manufacturers - Specialty & Generic $570.40 -0.17%
14 Carpenter Technology Corporation
NYSE:CRS 		0.33% $21.39 Billion Industrials Metal Fabrication $429.41 +0.28%
15 MasTec Inc
NYSE:MTZ 		0.28% $21.27 Billion Industrials Engineering & Construction $417.41 +5.93%
16 US Foods Holding Corp
NYSE:USFD 		0.57% $20.52 Billion Consumer Defensive Food Distribution $93.04 -0.48%
17 Roivant Sciences Ltd
NASDAQ:ROIV 		0.16% $19.92 Billion Healthcare Biotechnology $27.83 -2.45%
18 Allegheny Technologies Incorporated
NYSE:ATI 		0.26% $19.84 Billion Industrials Metal Fabrication $155.26 -0.13%
19 BWX Technologies Inc
NYSE:BWXT 		0.37% $19.82 Billion Industrials Aerospace & Defense $216.31 -0.04%
20 Royal Gold Inc
NASDAQ:RGLD 		0.45% $19.56 Billion Basic Materials Gold $230.59 -1.20%
21 EchoStar Corporation
NASDAQ:SATS 		0.11% $19.28 Billion Technology Communication Equipment $123.18 +0.03%
22 ITT Inc
NYSE:ITT 		0.40% $18.76 Billion Industrials Specialty Industrial Machinery $209.89 -2.08%
23 Burlington Stores Inc
NYSE:BURL 		0.61% $18.67 Billion Consumer Cyclical Apparel Retail $318.00 -0.63%
24 RB Global Inc.
NYSE:RBA 		0.70% $18.57 Billion Industrials Specialty Business Services $104.88 +0.56%
25 MACOM Technology Solutions Holdings Inc
NASDAQ:MTSI 		0.24% $18.53 Billion Technology Semiconductors $284.18 +0.91%
26 Illumina Inc
NASDAQ:ILMN 		0.45% $18.34 Billion Healthcare Diagnostics & Research $135.78 +7.13%
27 Reliance Steel & Aluminum Co
NYSE:RS 		0.60% $17.90 Billion Basic Materials Steel $365.85 +0.92%
28 RBC Bearings Incorporated
NYSE:RBC 		0.40% $17.69 Billion Industrials Tools & Accessories $595.76 -0.56%
29 Carlyle Group Inc
NASDAQ:CG 		0.31% $17.67 Billion Financial Services Asset Management $49.44 -1.26%
30 MKS Instruments Inc
NASDAQ:MKSI 		0.17% $17.51 Billion Technology Scientific & Technical Instruments $279.38 -1.54%
31 Nextracker Inc. Class A Common Stock
NASDAQ:NXT 		0.22% $17.18 Billion Technology Solar $119.93 +0.67%
32 East West Bancorp Inc
NASDAQ:EWBC 		0.39% $16.85 Billion Financial Services Banks - Regional $125.82 -0.51%
33 nVent Electric PLC
NYSE:NVT 		0.32% $16.41 Billion Industrials Electrical Equipment & Parts $158.92 +11.21%
34 Annaly Capital Management, Inc.
NYSE:NLY 		0.40% $16.39 Billion Real Estate REIT - Mortgage $22.82 -0.35%
35 Fabrinet
NYSE:FN 		0.26% $16.02 Billion Technology Electronic Components $706.53 +3.37%
36 Tenet Healthcare Corporation
NYSE:THC 		0.48% $15.94 Billion Healthcare Medical Care Facilities $183.27 +3.47%
37 W P Carey Inc
NYSE:WPC 		0.49% $15.64 Billion Real Estate REIT - Diversified $72.60 -0.45%
38 Entegris Inc
NASDAQ:ENTG 		0.41% $15.47 Billion Technology Semiconductor Equipment & Materials $142.29 +0.64%
39 Watsco Inc
NYSE:WSO 		0.69% $14.97 Billion Industrials Industrial Distribution $428.57 -2.12%
40 Jones Lang LaSalle Incorporated
NYSE:JLL 		0.40% $14.77 Billion Real Estate Real Estate Services $315.24 -0.91%
41 Dick’s Sporting Goods Inc
NYSE:DKS 		0.44% $14.71 Billion Consumer Cyclical Specialty Retail $224.62 -1.01%
42 Clean Harbors Inc
NYSE:CLH 		0.39% $14.69 Billion Industrials Waste Management $311.43 -0.40%
43 WESCO International Inc
NYSE:WCC 		0.26% $14.64 Billion Industrials Industrial Distribution $354.59 +1.57%
44 Lincoln Electric Holdings Inc
NASDAQ:LECO 		0.40% $14.59 Billion Industrials Tools & Accessories $266.25 +0.47%
45 Pinnacle Financial Partners, Inc.
NASDAQ:PNFP 		0.28% $14.43 Billion Financial Services Banks - Regional $98.44 +0.81%
46 Amkor Technology Inc
NASDAQ:AMKR 		0.07% $14.36 Billion Technology Semiconductor Equipment & Materials $71.09 +1.92%
47 Carlisle Companies Incorporated
NYSE:CSL 		0.60% $14.33 Billion Industrials Building Products & Equipment $357.04 +0.50%
48 Regal Beloit Corporation
NYSE:RRX 		0.25% $14.14 Billion Industrials Specialty Industrial Machinery $213.02 -0.93%
49 Performance Food Group Co
NYSE:PFGC 		0.47% $13.93 Billion Consumer Defensive Food Distribution $88.69 -2.06%
50 Omega Healthcare Investors Inc
NYSE:OHI 		0.42% $13.89 Billion Real Estate REIT - Healthcare Facilities $46.98 +0.02%

Complete list of all companies in the MID index ranked by market capitalization. Track index constituent performance and market values. View all indices