Current
$87.5B
5-Year Average
$53.8B
All-Time High
$97.1B
All-Time Low
$364M
Market cap daily chart for Williams Companies (WMB)
Aug 2, 2021 – Jul 31, 2026 · 1,255 trading days
Market Cap growth chart for Williams Companies (WMB) from 2017 to 2026
Latest: +19.2%
Market Cap history table for Williams Companies (WMB) from 1985 to 2026
| 2026 | $87.5B | +19.2% | +$14.1B | ||
| 2025 | $73.4B | +10.9% | +$7.21B | ||
| 2024 | $66.2B | +55.4% | +$23.6B | ||
| 2023 | $42.6B | +5.9% | +$2.36B | ||
| 2022 | $40.2B | +26.8% | +$8.5B | ||
| 2021 | $31.7B | +30.2% | +$7.36B | ||
| 2020 | $24.4B | -15.4% | -$4.43B | ||
| 2019 | $28.8B | +34.1% | +$7.33B | ||
| 2018 | $21.5B | -15.0% | -$3.79B | ||
| 2017 | $25.3B | +8.1% | +$1.89B | ||
| 2016 | $23.4B | +21.4% | +$4.12B | ||
| 2015 | $19.3B | -42.6% | -$14.3B | ||
| 2014 | $33.6B | +26.7% | +$7.07B | ||
| 2013 | $26.5B | +18.9% | +$4.21B | ||
| 2012 | $22.3B | +42.3% | +$6.62B | ||
| 2011 | $15.7B | +36.6% | +$4.2B | ||
| 2010 | $11.5B | +16.3% | +$1.61B | ||
| 2009 | $9.86B | +44.8% | +$3.05B | ||
| 2008 | $6.81B | -60.7% | -$10.5B | ||
| 2007 | $17.3B | +37.3% | +$4.7B | ||
| 2006 | $12.6B | +13.2% | +$1.48B | ||
| 2005 | $11.1B | +63.2% | +$4.31B | ||
| 2004 | $6.82B | +69.6% | +$2.8B | ||
| 2003 | $4.02B | +262.8% | +$2.91B | ||
| 2002 | $1.11B | -89.1% | -$9.07B | ||
| 2001 | $10.2B | -24.1% | -$3.23B | ||
| 2000 | $13.4B | +32.7% | +$3.31B | ||
| 1999 | $10.1B | +0.6% | +$56.6M | ||
| 1998 | $10B | +45.2% | +$3.13B | ||
| 1997 | $6.92B | +20.5% | +$1.18B | ||
| 1996 | $5.74B | +67.6% | +$2.32B | ||
| 1995 | $3.42B | +67.6% | +$1.38B | ||
| 1994 | $2.04B | +9.8% | +$182M | ||
| 1993 | $1.86B | +41.2% | +$543M | ||
| 1992 | $1.32B | +11.8% | +$139M | ||
| 1991 | $1.18B | +50.6% | +$396M | ||
| 1990 | $782M | -27.5% | -$297M | ||
| 1989 | $1.08B | +21.4% | +$191M | ||
| 1988 | $889M | +45.0% | +$276M | ||
| 1987 | $613M | +3.5% | +$20.6M | ||
| 1986 | $593M | -19.1% | -$140M | ||
| 1985 | $733M | — | — |
- 2026$87.5B+19.2%
- 2025$73.4B+10.9%
- 2024$66.2B+55.4%
- 2023$42.6B+5.9%
- 2022$40.2B+26.8%
- 2021$31.7B+30.2%
- 2020$24.4B-15.4%
- 2019$28.8B+34.1%
- 2018$21.5B-15.0%
- 2017$25.3B+8.1%
- 2016$23.4B+21.4%
- 2015$19.3B-42.6%
- 2014$33.6B+26.7%
- 2013$26.5B+18.9%
- 2012$22.3B+42.3%
- 2011$15.7B+36.6%
- 2010$11.5B+16.3%
- 2009$9.86B+44.8%
- 2008$6.81B-60.7%
- 2007$17.3B+37.3%
- 2006$12.6B+13.2%
- 2005$11.1B+63.2%
- 2004$6.82B+69.6%
- 2003$4.02B+262.8%
- 2002$1.11B-89.1%
- 2001$10.2B-24.1%
- 2000$13.4B+32.7%
- 1999$10.1B+0.6%
- 1998$10B+45.2%
- 1997$6.92B+20.5%
- 1996$5.74B+67.6%
- 1995$3.42B+67.6%
- 1994$2.04B+9.8%
- 1993$1.86B+41.2%
- 1992$1.32B+11.8%
- 1991$1.18B+50.6%
- 1990$782M-27.5%
- 1989$1.08B+21.4%
- 1988$889M+45.0%
- 1987$613M+3.5%
- 1986$593M-19.1%
- 1985$733M—
Market Cap values are taken from Williams Companies's reported income statements (share counts) and end-of-day prices (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Market Cap at Williams Companies (WMB)
According to Williams Companies's latest reported financial statements, the company's latest reported market cap is $89B. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
As of the 2026 fiscal year, Williams Companies (WMB) reported market cap of $87.5B – grew 19.2% year-over-year.
Williams Companies market cap compound annual growth for the 2021–2026 (5 years) window is +22.5%, sustaining 6 straight years of year-over-year growth.
$87.5B stands as the all-time-high annual market cap, posted in 2026, against a low of $593M during 1986.
Williams Companies Market Cap by Year
Williams Companies Market Cap 2026: $87.5B
Williams Companies posted market cap of $87.5B in 2026, grew 19.2% from 2025. This figure represents the highest annual value in the available history.
Williams Companies Market Cap 2025: $73.4B
In 2025, Williams Companies reported market cap of $73.4B, grew 10.9% from 2024.
Williams Companies Market Cap 2024: $66.2B
Williams Companies market cap in 2024 was $66.2B, surged 55.4% from 2023.
Williams Companies Market Cap 2023: $42.6B
2023's market cap for Williams Companies came in at $42.6B, grew 5.9% from 2022.
Williams Companies Market Cap 2022: $40.2B
Williams Companies market cap in 2022 was $40.2B.
See more financial history for Williams Companies (WMB).
Sector peers by Market Cap
Energy peers of Williams Companies (WMB), ranked by their latest market cap
| $382B | |
| $144B | |
| $120B | |
| $90.1B | |
| $89.5B | |
| $82.9B | |
| $77.7B | |
| $73.2B |
- $382B
- $144B
- $120B
- $90.1B
- $89.5B
- $82.9B
- $77.7B
- $73.2B
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Williams Companies (WMB) Key Financials
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Deep-dives across the income statement, cash flow, capital return, and valuation
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- Dividend Profile2.87% yield
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- Stock Split History6 splits
How this company returns cash to shareholders — buybacks, dividends, and stock splits.