MTZ - Company ID 0000015615
As of 2026-09-09, MASTEC INC (MTZ) has a market capitalization of $19.19 B, making it the #642 most valuable US-listed company.
| Date | Market cap |
|---|---|
| 2026-09-09 | $19.19 B |
| 2026-09-08 | $19.45 B |
| 2026-09-07 | $18.74 B |
| 2026-09-06 | $18.74 B |
| 2026-09-05 | $18.74 B |
| 2026-09-04 | $18.71 B |
| 2026-09-03 | $18.35 B |
| 2026-09-02 | $18.47 B |
| 2026-09-01 | $18.79 B |
| 2026-08-31 | $18.89 B |
| 2026-08-30 | $19.04 B |
| 2026-08-29 | $19.04 B |
As of 2026-09-09, MASTEC INC (MTZ) has a market capitalization of $19.19 B, making it the #642 most valuable US-listed company.
MASTEC INC is the #642 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| 2026-08-28 | $19.08 B |
| 2026-08-27 | $19.85 B |
| 2026-08-26 | $19.65 B |
| 2026-08-25 | $19.42 B |
| 2026-08-24 | $20.18 B |
| 2026-08-23 | $21.04 B |
| 2026-08-22 | $21.04 B |
| 2026-08-21 | $21.17 B |
| 2026-08-20 | $21.48 B |
| 2026-08-19 | $21.50 B |
| 2026-08-18 | $22.14 B |
| 2026-08-17 | $23.90 B |
| 2026-08-16 | $23.52 B |
| 2026-08-15 | $23.52 B |
| 2026-08-14 | $23.43 B |
| 2026-08-13 | $22.61 B |
| 2026-08-12 | $22.23 B |
| 2026-08-11 | $21.54 B |
Readings accumulate daily as market data refreshes, combining SEC-reported share counts with live prices.