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: Sep 11, 2026, 4:00 PM ET

#NameMarket cap ▼% changeMarket cap (relative)
321 Cboe Global Markets Cboe Global Markets CBOE 29.38B ▼ 2.26%
322 MongoDB MongoDB MDB 29.21B ▼ 3.12%
323 Kraft Heinz Kraft Heinz KHC 29.18B ▲ 0.86%
324 Okta Okta OKTA 29.11B ▼ 2.67%
325 Extra Space Storage Extra Space Storage EXR 29.08B ▲ 0.87%
326 Ameren Ameren AEE 29.04B ▼ 0.03%
327 GE HealthCare Technologies GE HealthCare Technologies GEHC 28.88B ▼ 0.48%
328 Ingersoll Rand Ingersoll Rand IR 28.30B ▼ 0.21%
329 Insmed Insmed INSM 28.25B ▲ 1.69%
330 LPL Financial Holdings LPL Financial Holdings LPLA 28.01B ▲ 1.89%
331 Teledyne Technologies Teledyne Technologies TDY 27.99B ▲ 1.23%
332 Zoom Communications Zoom Communications ZM 27.94B ▲ 0.11%
333 Las Vegas Sands Las Vegas Sands LVS 27.75B ▲ 0.54%
334 Copart Copart CPRT 27.73B ▼ 2.60%
335 DTE Energy DTE Energy DTE 27.59B ▼ 1.29%
336 Atmos Energy Atmos Energy ATO 27.58B ▼ 0.97%
337 Dollar General Dollar General DG 27.48B ▲ 1.29%
338 Fiserv Fiserv FISV 27.39B ▲ 5.43%
339 American Water Works American Water Works AWK 27.36B ▼ 1.55%
340 VICI Properties VICI Properties VICI 27.34B ▲ 0.40%