Seagate Technology Holdings (STX) Market Cap 2002–2026

As of October 29, 2026, Seagate Technology Holdings had a market cap of $161.11 billion, which increased by 1.78% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Oct 29, 2026, 4:00 PM ET

Seagate Technology Holdings PLC (STX)

🌍 Singapore 📈 NASDAQ 🏭 Technology 🏢 Technology Hardware, Storage & Peripherals

Latest Market Cap

$161.11B ▲ 1.78%

Start of 2026

$58.81B ▲ 173.95%

1 Year Ago

$57.15B ▲ 181.91%

All-Time High

$245.51B ▼ 34.38%

Loading data...

Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 Seagate Technology Holdings Market Cap History by Year and Month

Seagate Technology Holdings Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$161.11B	▲ 173.95%
October 29, 2026	$161.11B	▼ 22.98%
September 30, 2026	$209.18B	▲ 11.34%
August 31, 2026	$187.87B	▼ 3.33%
July 31, 2026	$194.34B	▼ 10.26%
June 30, 2026	$216.55B	▲ 9.77%
May 29, 2026	$197.28B	▲ 30.61%
April 30, 2026	$151.05B	▲ 72.12%
March 31, 2026	$87.76B	▼ 1.33%
February 27, 2026	$88.94B	▲ 0.14%
January 30, 2026	$88.82B	▲ 51.03%
2025	$58.81B	▲ 221.84%
December 31, 2025	$58.81B	▼ 0.47%
November 28, 2025	$59.09B	▲ 8.12%
October 31, 2025	$54.65B	▲ 8.86%
September 30, 2025	$50.2B	▲ 41.01%
August 29, 2025	$35.6B	▲ 6.62%
July 31, 2025	$33.39B	▲ 9.01%
June 30, 2025	$30.63B	▲ 22.37%
May 30, 2025	$25.03B	▲ 29.55%
April 30, 2025	$19.32B	▲ 7.15%
March 31, 2025	$18.03B	▼ 16.45%
February 28, 2025	$21.58B	▲ 5.78%
January 31, 2025	$20.4B	▲ 11.64%
2024	$18.273B	▲ 2.17%
December 31, 2024	$18.273B	▼ 14.75%
November 29, 2024	$21.434B	▲ 0.96%
October 31, 2024	$21.231B	▼ 8.33%
September 30, 2024	$23.161B	▲ 10.53%
August 30, 2024	$20.954B	▼ 2.43%
July 31, 2024	$21.476B	▼ 1.06%
June 28, 2024	$21.705B	▲ 10.86%
May 31, 2024	$19.579B	▲ 8.53%
April 30, 2024	$18.04B	▼ 7.46%
March 28, 2024	$19.495B	— 0.00%
February 29, 2024	$19.495B	▲ 8.60%
January 31, 2024	$17.951B	▲ 0.37%
2023	$17.885B	▲ 64.64%
December 29, 2023	$17.885B	▲ 8.09%
November 30, 2023	$16.546B	▲ 15.89%
October 31, 2023	$14.277B	▲ 3.49%
September 29, 2023	$13.795B	▼ 6.25%
August 31, 2023	$14.714B	▲ 11.73%
July 31, 2023	$13.169B	▲ 2.63%
June 30, 2023	$12.831B	▲ 3.09%
May 31, 2023	$12.446B	▲ 2.27%
April 28, 2023	$12.17B	▼ 11.10%
March 31, 2023	$13.69B	▲ 2.70%
February 28, 2023	$13.33B	▼ 4.75%
January 31, 2023	$13.995B	▲ 28.83%
2022	$10.863B	▼ 56.19%
December 30, 2022	$10.863B	▼ 0.67%
November 30, 2022	$10.936B	▲ 6.67%
October 31, 2022	$10.252B	▼ 6.70%
September 30, 2022	$10.988B	▼ 20.66%
August 31, 2022	$13.849B	▼ 17.49%
July 29, 2022	$16.784B	▲ 9.36%
June 30, 2022	$15.348B	▼ 15.63%
May 31, 2022	$18.191B	▲ 3.21%
April 29, 2022	$17.625B	▼ 9.23%
March 31, 2022	$19.418B	▼ 14.01%
February 28, 2022	$22.582B	▼ 3.72%
January 31, 2022	$23.455B	▼ 5.40%
2021	$24.795B	▲ 55.25%
December 31, 2021	$24.795B	▲ 8.47%
November 30, 2021	$22.858B	▲ 15.26%
October 29, 2021	$19.831B	▲ 6.35%
September 30, 2021	$18.647B	▼ 5.79%
August 31, 2021	$19.793B	▼ 0.97%
July 30, 2021	$19.987B	▼ 0.69%
June 30, 2021	$20.125B	▼ 8.16%
May 28, 2021	$21.914B	▲ 3.13%
April 30, 2021	$21.248B	▲ 19.57%
March 31, 2021	$17.77B	▲ 4.81%
February 26, 2021	$16.955B	▲ 8.35%
January 29, 2021	$15.649B	▼ 2.02%
2020	$15.971B	▲ 2.18%
December 31, 2020	$15.971B	▲ 5.70%
November 30, 2020	$15.11B	▲ 22.99%
October 30, 2020	$12.286B	▼ 2.80%
September 30, 2020	$12.64B	▲ 2.67%
August 31, 2020	$12.311B	▲ 6.05%
July 31, 2020	$11.609B	▼ 6.55%
June 30, 2020	$12.423B	▼ 8.73%
May 29, 2020	$13.611B	▲ 6.19%
April 30, 2020	$12.818B	▲ 0.65%
March 31, 2020	$12.735B	▲ 1.77%
February 28, 2020	$12.513B	▼ 15.86%
January 31, 2020	$14.872B	▼ 4.86%
2019	$15.631B	▲ 43.06%
December 31, 2019	$15.631B	▼ 0.31%
November 29, 2019	$15.679B	▲ 2.85%
October 31, 2019	$15.245B	▲ 7.30%
September 30, 2019	$14.208B	▲ 6.67%
August 30, 2019	$13.32B	▲ 6.91%
July 31, 2019	$12.459B	▼ 1.74%
June 28, 2019	$12.68B	▲ 9.44%
May 31, 2019	$11.586B	▼ 13.39%
April 30, 2019	$13.377B	▲ 0.91%
March 29, 2019	$13.257B	▲ 1.06%
February 28, 2019	$13.118B	▲ 5.15%
January 31, 2019	$12.475B	▲ 14.18%
2018	$10.926B	▼ 8.23%
December 31, 2018	$10.926B	▼ 11.40%
November 30, 2018	$12.332B	▲ 7.10%
October 31, 2018	$11.514B	▼ 15.01%
September 28, 2018	$13.548B	▼ 12.11%
August 31, 2018	$15.415B	▲ 2.01%
July 31, 2018	$15.111B	▼ 6.81%
June 29, 2018	$16.216B	▲ 0.25%
May 31, 2018	$16.176B	▼ 2.66%
April 30, 2018	$16.618B	▼ 0.30%
March 29, 2018	$16.668B	▲ 9.59%
February 28, 2018	$15.21B	▼ 3.26%
January 31, 2018	$15.723B	▲ 32.06%
2017	$11.906B	▲ 5.91%
December 29, 2017	$11.906B	▲ 6.72%
November 30, 2017	$11.156B	▲ 4.30%
October 31, 2017	$10.696B	▲ 11.47%
September 29, 2017	$9.595B	▲ 5.73%
August 31, 2017	$9.075B	▼ 5.65%
July 31, 2017	$9.618B	▼ 14.94%
June 30, 2017	$11.307B	▼ 12.51%
May 31, 2017	$12.924B	▲ 3.42%
April 28, 2017	$12.497B	▼ 8.27%
March 31, 2017	$13.623B	▼ 4.23%
February 28, 2017	$14.225B	▲ 6.74%
January 31, 2017	$13.327B	▲ 18.55%
2016	$11.242B	▲ 2.55%
December 30, 2016	$11.242B	▼ 4.81%
November 30, 2016	$11.81B	▲ 16.87%
October 31, 2016	$10.105B	▼ 12.21%
September 30, 2016	$11.511B	▲ 13.73%
August 31, 2016	$10.121B	▲ 5.82%
July 29, 2016	$9.564B	▲ 31.30%
June 30, 2016	$7.284B	▲ 8.17%
May 31, 2016	$6.734B	▲ 3.63%
April 29, 2016	$6.498B	▼ 36.37%
March 31, 2016	$10.212B	▲ 9.85%
February 29, 2016	$9.296B	▲ 7.95%
January 29, 2016	$8.611B	▼ 21.45%
2015	$10.962B	▼ 49.63%
December 31, 2015	$10.962B	▲ 2.00%
November 30, 2015	$10.747B	▼ 5.57%
October 30, 2015	$11.381B	▼ 14.41%
September 30, 2015	$13.297B	▼ 12.84%
August 31, 2015	$15.256B	▼ 4.42%
July 31, 2015	$15.962B	▲ 5.88%
June 30, 2015	$15.076B	▼ 14.63%
May 29, 2015	$17.659B	▼ 5.25%
April 30, 2015	$18.637B	▲ 9.09%
March 31, 2015	$17.084B	▼ 14.87%
February 27, 2015	$20.068B	▲ 8.29%
January 30, 2015	$18.532B	▼ 14.84%
2014	$21.761B	▲ 17.96%
December 31, 2014	$21.761B	▲ 0.59%
November 28, 2014	$21.634B	▲ 5.22%
October 31, 2014	$20.56B	▲ 10.11%
September 30, 2014	$18.672B	▼ 8.49%
August 29, 2014	$20.404B	▲ 6.54%
July 31, 2014	$19.151B	▲ 3.22%
June 30, 2014	$18.554B	▲ 5.74%
May 30, 2014	$17.546B	▲ 2.18%
April 30, 2014	$17.171B	▼ 6.35%
March 31, 2014	$18.335B	▲ 6.86%
February 28, 2014	$17.158B	▼ 1.27%
January 31, 2014	$17.378B	▼ 5.79%
2013	$18.447B	▲ 69.63%
December 31, 2013	$18.447B	▲ 15.34%
November 29, 2013	$15.994B	▲ 0.72%
October 31, 2013	$15.88B	▲ 1.15%
September 30, 2013	$15.7B	▲ 14.82%
August 30, 2013	$13.673B	▼ 7.02%
July 31, 2013	$14.705B	▼ 8.74%
June 28, 2013	$16.114B	▲ 4.32%
May 31, 2013	$15.446B	▲ 17.38%
April 30, 2013	$13.159B	▲ 0.30%
March 28, 2013	$13.12B	▲ 13.68%
February 28, 2013	$11.541B	▼ 5.36%
January 31, 2013	$12.194B	▲ 12.13%
2012	$10.875B	▲ 42.64%
December 31, 2012	$10.875B	▲ 14.78%
November 30, 2012	$9.475B	▼ 8.16%
October 31, 2012	$10.317B	▼ 13.66%
September 28, 2012	$11.949B	▼ 6.04%
August 31, 2012	$12.717B	▲ 6.63%
July 31, 2012	$11.926B	▲ 21.77%
June 29, 2012	$9.794B	▼ 1.70%
May 31, 2012	$9.963B	▼ 23.83%
April 30, 2012	$13.08B	▲ 11.98%
March 30, 2012	$11.681B	▼ 0.87%
February 29, 2012	$11.784B	▲ 24.23%
January 31, 2012	$9.486B	▲ 24.42%
2011	$7.624B	▲ 11.97%
December 30, 2011	$7.624B	▲ 6.18%
November 30, 2011	$7.18B	▲ 5.88%
October 31, 2011	$6.781B	▲ 57.11%
September 30, 2011	$4.316B	▼ 11.16%
August 31, 2011	$4.858B	▼ 17.63%
July 29, 2011	$5.898B	▼ 15.14%
June 30, 2011	$6.95B	▼ 3.82%
May 31, 2011	$7.226B	▼ 4.65%
April 29, 2011	$7.578B	▲ 16.14%
March 31, 2011	$6.525B	▲ 13.42%
February 28, 2011	$5.753B	▼ 9.29%
January 31, 2011	$6.342B	▼ 6.86%
2010	$6.809B	▼ 24.83%
December 31, 2010	$6.809B	▲ 7.41%
November 30, 2010	$6.339B	▼ 8.83%
October 29, 2010	$6.953B	▲ 25.08%
September 30, 2010	$5.559B	▲ 16.20%
August 31, 2010	$4.784B	▼ 18.94%
July 30, 2010	$5.902B	▼ 7.14%
June 30, 2010	$6.356B	▼ 15.11%
May 28, 2010	$7.487B	▼ 16.31%
April 30, 2010	$8.946B	▲ 0.29%
March 31, 2010	$8.92B	▼ 10.23%
February 26, 2010	$9.937B	▲ 19.15%
January 29, 2010	$8.34B	▼ 7.93%
2009	$9.058B	▲ 318.77%
December 31, 2009	$9.058B	▲ 20.23%
November 30, 2009	$7.534B	▲ 8.47%
October 30, 2009	$6.946B	▼ 7.91%
September 30, 2009	$7.543B	▲ 9.92%
August 31, 2009	$6.862B	▲ 15.60%
July 31, 2009	$5.936B	▲ 15.46%
June 30, 2009	$5.141B	▲ 20.09%
May 29, 2009	$4.281B	▲ 6.76%
April 30, 2009	$4.01B	▲ 35.84%
March 31, 2009	$2.952B	▲ 39.77%
February 27, 2009	$2.112B	▲ 14.16%
January 30, 2009	$1.85B	▼ 14.47%
2008	$2.163B	▼ 83.91%
December 31, 2008	$2.163B	▲ 5.20%
November 28, 2008	$2.056B	▼ 37.81%
October 31, 2008	$3.306B	▼ 44.14%
September 30, 2008	$5.918B	▼ 18.64%
August 29, 2008	$7.274B	▲ 0.17%
July 31, 2008	$7.262B	▼ 21.75%
June 30, 2008	$9.281B	▼ 10.60%
May 30, 2008	$10.382B	▲ 13.51%
April 30, 2008	$9.146B	▼ 11.58%
March 31, 2008	$10.344B	▼ 9.03%
February 29, 2008	$11.371B	▲ 6.41%
January 31, 2008	$10.686B	▼ 20.49%
2007	$13.439B	▼ 8.63%
December 31, 2007	$13.439B	▼ 2.06%
November 30, 2007	$13.721B	▼ 7.37%
October 31, 2007	$14.812B	▲ 9.26%
September 28, 2007	$13.557B	▼ 1.70%
August 31, 2007	$13.792B	▲ 9.66%
July 31, 2007	$12.577B	▲ 7.98%
June 29, 2007	$11.647B	▲ 4.05%
May 31, 2007	$11.194B	▼ 7.05%
April 30, 2007	$12.043B	▼ 4.81%
March 30, 2007	$12.652B	▼ 14.13%
February 28, 2007	$14.734B	▼ 0.71%
January 31, 2007	$14.839B	▲ 0.89%
2006	$14.708B	▲ 52.34%
December 29, 2006	$14.708B	▼ 0.55%
November 30, 2006	$14.789B	▲ 14.09%
October 31, 2006	$12.963B	▼ 2.03%
September 29, 2006	$13.231B	▲ 3.25%
August 31, 2006	$12.815B	▼ 4.09%
July 31, 2006	$13.362B	▲ 2.47%
June 30, 2006	$13.04B	▲ 13.20%
May 31, 2006	$11.519B	▼ 12.08%
April 28, 2006	$13.102B	▲ 0.93%
March 31, 2006	$12.981B	▲ 0.22%
February 28, 2006	$12.953B	▲ 1.88%
January 31, 2006	$12.714B	▲ 31.68%
2005	$9.655B	▲ 19.46%
December 30, 2005	$9.655B	▲ 6.20%
November 30, 2005	$9.091B	▲ 30.58%
October 31, 2005	$6.962B	▼ 8.49%
September 30, 2005	$7.608B	▼ 3.88%
August 31, 2005	$7.915B	▼ 14.36%
July 29, 2005	$9.242B	▲ 10.99%
June 30, 2005	$8.327B	▼ 17.29%
May 31, 2005	$10.068B	▲ 20.70%
April 29, 2005	$8.341B	▼ 8.98%
March 31, 2005	$9.164B	▲ 8.80%
February 28, 2005	$8.423B	▲ 6.20%
January 31, 2005	$7.931B	▼ 1.87%
2004	$8.082B	▼ 5.05%
December 31, 2004	$8.082B	▲ 16.10%
November 30, 2004	$6.961B	▲ 18.51%
October 29, 2004	$5.874B	▼ 6.06%
September 30, 2004	$6.253B	▲ 23.70%
August 31, 2004	$5.055B	▼ 4.71%
July 30, 2004	$5.305B	▼ 19.73%
June 30, 2004	$6.609B	▲ 17.31%
May 28, 2004	$5.634B	▼ 1.68%
April 30, 2004	$5.73B	▼ 21.50%
March 31, 2004	$7.299B	▼ 6.76%
February 27, 2004	$7.828B	▲ 6.13%
January 30, 2004	$7.376B	▼ 13.35%
2003	$8.512B	▲ 85.37%
December 31, 2003	$8.512B	▼ 4.31%
November 28, 2003	$8.895B	▼ 14.06%
October 31, 2003	$10.35B	▼ 14.88%
September 30, 2003	$12.16B	▲ 18.21%
August 29, 2003	$10.287B	▲ 7.53%
July 31, 2003	$9.567B	▲ 23.51%
June 30, 2003	$7.746B	▲ 18.28%
May 30, 2003	$6.549B	▲ 25.29%
April 30, 2003	$5.227B	▲ 17.51%
March 31, 2003	$4.448B	▲ 11.93%
February 28, 2003	$3.974B	▲ 0.97%
January 31, 2003	$3.936B	▼ 14.29%
2002	$4.592B	▼ 6.36%
December 31, 2002	$4.592B	▼ 6.36%

All market cap values reflect closing prices for the period shown.

📊 Seagate Technology Holdings Market Cap and Other Industry Peers

Below are selected companies from the Technology sector / subsector:

Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.