Largest Companies by Market Cap - March 2026
How these values were calculated
- Reconstructed, not recorded
- The share counts in force at the close of March 2026 were not recorded at the time. Each value marked est. is that month's closing price multiplied by the share count on record today, so a buyback or an issuance since then moves it. The closing prices are exact; the share counts are today's.
- What that changes
- Ranks near each other can swap, and a company whose share count changed sharply since March 2026 carries the largest error. Months recorded while their inputs were current carry no marker.
Swipe or scroll the table sideways for more columns.
PETROLEO BRASILEIRO S.A.-PETROBRAS ADS (REP 1 (PBR) was the standout climber between the
Unilever plc (UL) was the sharpest faller, declining 26 places to rank 114 from rank 88. Southern Copper Corporation (SCCO) declined 21 places to rank 94 from rank 73, and HDFC Bank Limited (HDB) declined 20 places to rank 105 from rank 85. Stryker Corporation (SYK) slipped 11 places to rank 107 from rank 96. Other notable fallers were GE Aerospace (GE), SAP SE (SAP) and Deere & Company (DE).
Inside the top 10, Broadcom Inc. (AVGO) rose 2 places to rank 7. AVGO overtook Tesla, Inc. (TSLA) and Meta Platforms, Inc. (META), while TSLA overtook META. TSLA held rank 8, and META fell 2 places to rank 9.
Sunbelt Rentals Holdings, Inc. (SUNB) entered at rank 472. PayPay Corporation (PAYP) entered at rank 709. Exact Sciences Corp (EXAS) left after previously holding rank 610, while Confluent, Inc. (CFLT) left after rank 842. Both monthly snapshots were reconstructed.
Compares this month's close with the previous month's close. A company that shifted only because another entered or left the ranking above it is not counted as having moved.
About this ranking
This page ranks 939 US-listed companies by the market capitalization each one carried at the close of March 2026. The values do not change, because March 2026 is over; this is what the ranking looked like then, and it will look the same the next time you visit.
Market capitalization is the share price multiplied by the number of shares outstanding. Each figure on this page uses that month's closing share price, so the ranking reflects the market as it stood at the close of March 2026 rather than today. Rank Change compares each company's position with its position at the end of the previous month. A company whose position shifted only because another company entered or left the ranking above it shows no change, because it did not move.
This month was reconstructed: the closing prices are the ones recorded for March 2026, but the share counts are today's, so every value marked est. carries the share-count drift since then.
For the ranking at today's prices, see the live market cap ranking.