Largest 500 U.S. Companies by Market Cap - 321–340 of 500

A daily-updated ranking highlights the 500 largest american stocks by market cap, making it easy to assess market leaders, track shifts in valuation, and understand how the biggest companies compare over time.

Data updated: Mar 13, 2026, 4:00 PM ET

#NameMarket cap ▼% changeMarket cap (relative)
321 Halliburton Halliburton HAL 28.22B ▼ 3.29%
322 Waters Waters WAT 28.11B ▲ 1.15%
323 United Airlines Holdings United Airlines Holdings UAL 28.01B ▲ 0.07%
324 Expedia Group Expedia Group EXPE 27.98B ▲ 0.29%
325 IQVIA Holdings IQVIA Holdings IQV 27.95B ▲ 1.08%
326 Verisk Analytics Verisk Analytics VRSK 27.76B ▲ 1.61%
327 Charter Communications Charter Communications CHTR 27.63B ▲ 1.43%
328 Edison International Edison International EIX 27.60B ▲ 1.10%
329 Dover Dover DOV 27.50B ▲ 0.04%
330 Eversource Energy Eversource Energy ES 27.45B ▼ 0.15%
331 American Water Works American Water Works AWK 27.27B ▲ 1.04%
332 Fair Isaac Fair Isaac FICO 26.83B ▲ 3.43%
333 Kraft Heinz Kraft Heinz KHC 26.73B ▲ 1.14%
334 Biogen Biogen BIIB 26.64B ▼ 1.84%
335 Natera Natera NTRA 26.62B ▼ 1.30%
336 Rollins Rollins ROL 26.52B ▼ 0.82%
337 Jabil Jabil JBL 26.47B ▼ 0.56%
338 Tradeweb Markets Tradeweb Markets TW 26.45B ▲ 0.76%
339 Dow Dow DOW 26.28B ▼ 2.52%
340 Constellation Brands Constellation Brands STZ 26.04B ▲ 1.24%