Illumina (ILMN) Market Cap 2000–2026

As of October 29, 2026, Illumina had a market cap of $43.8 billion, which increased by 0.44% 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

Illumina Inc. (ILMN)

🌍 United States 📈 NASDAQ 🏭 Health Care 🏢 Life Sciences Tools & Services

Latest Market Cap

$43.8B ▲ 0.44%

Start of 2026

$20.04B ▲ 118.56%

1 Year Ago

$15.22B ▲ 187.78%

All-Time High

$77.66B ▼ 43.60%

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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.

📈 Illumina Market Cap History by Year and Month

Illumina Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$43.8B	▲ 118.56%
October 29, 2026	$43.8B	▲ 5.98%
September 30, 2026	$41.33B	▲ 28.12%
August 31, 2026	$32.26B	▲ 3.46%
July 31, 2026	$31.18B	▲ 16.65%
June 30, 2026	$26.73B	▲ 8.39%
May 29, 2026	$24.66B	▲ 27.24%
April 30, 2026	$19.38B	▲ 2.81%
March 31, 2026	$18.85B	▼ 8.32%
February 27, 2026	$20.56B	▼ 7.09%
January 30, 2026	$22.13B	▲ 10.43%
2025	$20.04B	▼ 5.68%
December 31, 2025	$20.04B	▼ 0.25%
November 28, 2025	$20.09B	▲ 5.79%
October 31, 2025	$18.99B	▲ 30.07%
September 30, 2025	$14.6B	▼ 7.71%
August 29, 2025	$15.82B	▼ 2.71%
July 31, 2025	$16.26B	▲ 7.68%
June 30, 2025	$15.1B	▲ 15.98%
May 30, 2025	$13.02B	▲ 5.51%
April 30, 2025	$12.34B	▼ 2.22%
March 31, 2025	$12.62B	▼ 10.24%
February 28, 2025	$14.06B	▼ 33.40%
January 31, 2025	$21.11B	▼ 0.64%
2024	$21.247B	▼ 1.13%
December 31, 2024	$21.247B	▼ 7.06%
November 29, 2024	$22.862B	▲ 0.39%
October 31, 2024	$22.774B	▲ 10.53%
September 30, 2024	$20.605B	▼ 1.56%
August 30, 2024	$20.932B	▲ 7.18%
July 31, 2024	$19.53B	▲ 17.45%
June 28, 2024	$16.628B	▲ 3.00%
May 31, 2024	$16.144B	▼ 15.25%
April 30, 2024	$19.05B	▼ 10.37%
March 28, 2024	$21.254B	▼ 1.57%
February 29, 2024	$21.593B	▼ 2.29%
January 31, 2024	$22.098B	▲ 2.83%
2023	$21.489B	▼ 30.48%
December 29, 2023	$21.489B	▲ 36.58%
November 30, 2023	$15.734B	▼ 6.53%
October 31, 2023	$16.833B	▼ 20.29%
September 29, 2023	$21.119B	▼ 16.91%
August 31, 2023	$25.418B	▼ 13.85%
July 31, 2023	$29.505B	▲ 2.42%
June 30, 2023	$28.807B	▼ 4.66%
May 31, 2023	$30.215B	▼ 4.33%
April 28, 2023	$31.584B	▼ 11.55%
March 31, 2023	$35.708B	▲ 16.74%
February 28, 2023	$30.587B	▼ 7.00%
January 31, 2023	$32.89B	▲ 6.41%
2022	$30.91B	▼ 46.51%
December 30, 2022	$30.91B	▼ 7.28%
November 30, 2022	$33.338B	▼ 4.69%
October 31, 2022	$34.98B	▲ 19.93%
September 30, 2022	$29.166B	▼ 5.38%
August 31, 2022	$30.825B	▼ 6.76%
July 29, 2022	$33.061B	▲ 17.46%
June 30, 2022	$28.147B	▼ 23.02%
May 31, 2022	$36.563B	▼ 19.27%
April 29, 2022	$45.291B	▼ 15.09%
March 31, 2022	$53.341B	▲ 7.04%
February 28, 2022	$49.832B	▼ 6.37%
January 31, 2022	$53.222B	▼ 7.90%
2021	$57.788B	▲ 10.08%
December 31, 2021	$57.788B	▲ 4.14%
November 30, 2021	$55.493B	▼ 11.98%
October 29, 2021	$63.047B	▲ 2.20%
September 30, 2021	$61.69B	▼ 11.28%
August 31, 2021	$69.53B	▼ 1.62%
July 30, 2021	$70.678B	▲ 5.26%
June 30, 2021	$67.143B	▲ 16.66%
May 28, 2021	$57.555B	▲ 3.26%
April 30, 2021	$55.739B	▲ 2.30%
March 31, 2021	$54.486B	▼ 12.55%
February 26, 2021	$62.304B	▲ 2.97%
January 29, 2021	$60.507B	▲ 15.26%
2020	$52.498B	▲ 10.77%
December 31, 2020	$52.498B	▲ 14.87%
November 30, 2020	$45.701B	▲ 10.04%
October 30, 2020	$41.531B	▼ 5.30%
September 30, 2020	$43.855B	▼ 13.48%
August 31, 2020	$50.685B	▼ 6.53%
July 31, 2020	$54.224B	▲ 3.19%
June 30, 2020	$52.548B	▲ 1.32%
May 29, 2020	$51.865B	▲ 13.80%
April 30, 2020	$45.577B	▲ 16.96%
March 31, 2020	$38.967B	▲ 2.67%
February 28, 2020	$37.954B	▼ 8.41%
January 31, 2020	$41.439B	▼ 12.56%
2019	$47.392B	▲ 10.60%
December 31, 2019	$47.392B	▲ 3.42%
November 29, 2019	$45.824B	▲ 8.54%
October 31, 2019	$42.218B	▼ 2.86%
September 30, 2019	$43.461B	▲ 8.13%
August 30, 2019	$40.192B	▼ 6.03%
July 31, 2019	$42.769B	▼ 18.68%
June 28, 2019	$52.594B	▲ 19.95%
May 31, 2019	$43.845B	▼ 1.63%
April 30, 2019	$44.572B	▲ 0.47%
March 29, 2019	$44.364B	▼ 0.67%
February 28, 2019	$44.661B	▲ 11.73%
January 31, 2019	$39.971B	▼ 6.71%
2018	$42.848B	▲ 38.21%
December 31, 2018	$42.848B	▼ 11.13%
November 30, 2018	$48.215B	▲ 8.47%
October 31, 2018	$44.451B	▼ 15.23%
September 28, 2018	$52.438B	▲ 3.45%
August 31, 2018	$50.691B	▲ 9.39%
July 31, 2018	$46.338B	▲ 16.14%
June 29, 2018	$39.899B	▲ 2.51%
May 31, 2018	$38.921B	▲ 13.08%
April 30, 2018	$34.419B	▲ 2.08%
March 29, 2018	$33.717B	▲ 3.51%
February 28, 2018	$32.575B	▼ 1.99%
January 31, 2018	$33.235B	▲ 7.21%
2017	$31.001B	▲ 69.60%
December 29, 2017	$31.001B	▼ 5.02%
November 30, 2017	$32.638B	▲ 12.10%
October 31, 2017	$29.114B	▲ 3.01%
September 29, 2017	$28.264B	▼ 2.57%
August 31, 2017	$29.01B	▲ 17.61%
July 31, 2017	$24.667B	▲ 0.19%
June 30, 2017	$24.62B	▼ 2.17%
May 31, 2017	$25.165B	▼ 4.06%
April 28, 2017	$26.229B	▲ 8.11%
March 31, 2017	$24.261B	▲ 1.93%
February 28, 2017	$23.801B	▲ 4.63%
January 31, 2017	$22.747B	▲ 24.44%
2016	$18.279B	▼ 33.07%
December 30, 2016	$18.279B	▼ 3.83%
November 30, 2016	$19.007B	▼ 2.21%
October 31, 2016	$19.436B	▼ 24.90%
September 30, 2016	$25.881B	▲ 7.91%
August 31, 2016	$23.984B	▲ 1.20%
July 29, 2016	$23.7B	▲ 18.02%
June 30, 2016	$20.082B	▼ 3.07%
May 31, 2016	$20.719B	▲ 7.29%
April 29, 2016	$19.311B	▼ 16.66%
March 31, 2016	$23.172B	▲ 7.96%
February 29, 2016	$21.463B	▼ 4.61%
January 29, 2016	$22.5B	▼ 17.61%
2015	$27.309B	▲ 5.99%
December 31, 2015	$27.309B	▲ 4.37%
November 30, 2015	$26.165B	▲ 28.35%
October 30, 2015	$20.385B	▼ 17.55%
September 30, 2015	$24.725B	▼ 11.03%
August 31, 2015	$27.789B	▼ 9.89%
July 31, 2015	$30.839B	▲ 0.85%
June 30, 2015	$30.579B	▲ 5.96%
May 29, 2015	$28.86B	▲ 11.85%
April 30, 2015	$25.803B	▼ 0.70%
March 31, 2015	$25.986B	▼ 4.87%
February 27, 2015	$27.315B	▲ 0.14%
January 30, 2015	$27.278B	▲ 5.87%
2014	$25.765B	▲ 87.70%
December 31, 2014	$25.765B	▼ 2.19%
November 28, 2014	$26.343B	▼ 0.88%
October 31, 2014	$26.576B	▲ 19.67%
September 30, 2014	$22.207B	▼ 8.61%
August 29, 2014	$24.299B	▲ 12.16%
July 31, 2014	$21.664B	▼ 2.76%
June 30, 2014	$22.279B	▲ 12.82%
May 30, 2014	$19.747B	▲ 16.49%
April 30, 2014	$16.952B	▼ 8.47%
March 31, 2014	$18.521B	▼ 13.32%
February 28, 2014	$21.366B	▲ 12.82%
January 31, 2014	$18.938B	▲ 37.96%
2013	$13.727B	▲ 105.00%
December 31, 2013	$13.727B	▲ 14.03%
November 29, 2013	$12.038B	▲ 4.80%
October 31, 2013	$11.487B	▲ 16.87%
September 30, 2013	$9.829B	▲ 3.85%
August 30, 2013	$9.465B	▼ 2.48%
July 31, 2013	$9.706B	▲ 7.30%
June 28, 2013	$9.046B	▲ 6.42%
May 31, 2013	$8.5B	▲ 8.70%
April 30, 2013	$7.82B	▲ 20.12%
March 28, 2013	$6.51B	▲ 7.73%
February 28, 2013	$6.043B	▼ 0.98%
January 31, 2013	$6.103B	▼ 8.86%
2012	$6.696B	▲ 86.16%
December 31, 2012	$6.696B	▲ 3.98%
November 30, 2012	$6.44B	▲ 13.08%
October 31, 2012	$5.695B	▼ 1.13%
September 28, 2012	$5.76B	▲ 14.51%
August 31, 2012	$5.03B	▲ 1.47%
July 31, 2012	$4.957B	▲ 2.29%
June 29, 2012	$4.846B	▼ 6.19%
May 31, 2012	$5.166B	▼ 3.29%
April 30, 2012	$5.342B	▼ 15.23%
March 30, 2012	$6.302B	▲ 3.43%
February 29, 2012	$6.093B	▼ 1.17%
January 31, 2012	$6.165B	▲ 71.39%
2011	$3.597B	▼ 53.27%
December 30, 2011	$3.597B	▲ 9.56%
November 30, 2011	$3.283B	▼ 9.16%
October 31, 2011	$3.614B	▼ 26.92%
September 30, 2011	$4.945B	▼ 21.46%
August 31, 2011	$6.296B	▼ 16.57%
July 29, 2011	$7.546B	▼ 16.09%
June 30, 2011	$8.993B	▲ 4.27%
May 31, 2011	$8.625B	▲ 1.54%
April 29, 2011	$8.494B	▼ 2.51%
March 31, 2011	$8.713B	▲ 1.01%
February 28, 2011	$8.626B	▲ 1.10%
January 31, 2011	$8.532B	▲ 10.85%
2010	$7.697B	▲ 106.35%
December 31, 2010	$7.697B	▲ 5.35%
November 30, 2010	$7.306B	▲ 10.70%
October 29, 2010	$6.6B	▲ 11.06%
September 30, 2010	$5.943B	▲ 14.71%
August 31, 2010	$5.181B	▼ 4.32%
July 30, 2010	$5.415B	▲ 5.10%
June 30, 2010	$5.152B	▲ 3.54%
May 28, 2010	$4.976B	▲ 0.50%
April 30, 2010	$4.951B	▲ 8.17%
March 31, 2010	$4.577B	▲ 7.80%
February 26, 2010	$4.246B	▼ 0.33%
January 29, 2010	$4.26B	▲ 14.21%
2009	$3.73B	▲ 19.06%
December 31, 2009	$3.73B	▲ 6.09%
November 30, 2009	$3.516B	▼ 9.89%
October 30, 2009	$3.902B	▼ 23.89%
September 30, 2009	$5.127B	▲ 20.49%
August 31, 2009	$4.255B	▼ 2.41%
July 31, 2009	$4.36B	▼ 6.36%
June 30, 2009	$4.656B	▲ 6.08%
May 29, 2009	$4.389B	▼ 1.72%
April 30, 2009	$4.466B	▲ 1.92%
March 31, 2009	$4.382B	▲ 18.85%
February 27, 2009	$3.687B	▲ 12.07%
January 30, 2009	$3.29B	▲ 5.01%
2008	$3.133B	▼ 1.79%
December 31, 2008	$3.133B	▲ 18.36%
November 28, 2008	$2.647B	▼ 28.59%
October 31, 2008	$3.707B	▼ 23.91%
September 30, 2008	$4.872B	▲ 1.82%
August 29, 2008	$4.785B	▼ 7.63%
July 31, 2008	$5.18B	▲ 7.05%
June 30, 2008	$4.839B	▲ 12.43%
May 30, 2008	$4.304B	▲ 0.77%
April 30, 2008	$4.271B	▲ 2.62%
March 31, 2008	$4.162B	▲ 6.77%
February 29, 2008	$3.898B	▲ 13.68%
January 31, 2008	$3.429B	▲ 7.49%
2007	$3.19B	▲ 79.52%
December 31, 2007	$3.19B	▲ 3.84%
November 30, 2007	$3.072B	▲ 2.91%
October 31, 2007	$2.985B	▲ 9.74%
September 28, 2007	$2.72B	▲ 7.42%
August 31, 2007	$2.532B	▲ 5.99%
July 31, 2007	$2.389B	▲ 12.96%
June 29, 2007	$2.115B	▲ 24.41%
May 31, 2007	$1.7B	— 0.00%
April 30, 2007	$1.7B	▲ 27.44%
March 30, 2007	$1.334B	▼ 12.81%
February 28, 2007	$1.53B	▼ 17.74%
January 31, 2007	$1.86B	▲ 4.67%
2006	$1.777B	▲ 215.07%
December 29, 2006	$1.777B	▲ 2.30%
November 30, 2006	$1.737B	▼ 12.58%
October 31, 2006	$1.987B	▲ 34.71%
September 29, 2006	$1.475B	▼ 1.93%
August 31, 2006	$1.504B	▼ 11.89%
July 31, 2006	$1.707B	▲ 28.93%
June 30, 2006	$1.324B	▲ 19.49%
May 31, 2006	$1.108B	▼ 13.57%
April 28, 2006	$1.282B	▲ 33.26%
March 31, 2006	$0.962B	▼ 5.69%
February 28, 2006	$1.02B	▲ 18.60%
January 31, 2006	$0.86B	▲ 52.48%
2005	$0.564B	▲ 60.68%
December 30, 2005	$0.564B	▼ 10.48%
November 30, 2005	$0.63B	▲ 1.12%
October 31, 2005	$0.623B	▲ 21.68%
September 30, 2005	$0.512B	▲ 6.44%
August 31, 2005	$0.481B	▲ 9.07%
July 29, 2005	$0.441B	▼ 7.35%
June 30, 2005	$0.476B	▲ 20.81%
May 31, 2005	$0.394B	▲ 7.07%
April 29, 2005	$0.368B	▲ 21.45%
March 31, 2005	$0.303B	▼ 0.98%
February 28, 2005	$0.306B	▼ 14.76%
January 31, 2005	$0.359B	▲ 2.28%
2004	$0.351B	▲ 56.00%
December 31, 2004	$0.351B	▲ 24.91%
November 30, 2004	$0.281B	▲ 17.57%
October 29, 2004	$0.239B	▲ 10.14%
September 30, 2004	$0.217B	▲ 2.84%
August 31, 2004	$0.211B	▲ 11.64%
July 30, 2004	$0.189B	▼ 18.53%
June 30, 2004	$0.232B	▲ 13.73%
May 28, 2004	$0.204B	▼ 15.70%
April 30, 2004	$0.242B	— 0.00%
March 31, 2004	$0.242B	▲ 11.52%
February 27, 2004	$0.217B	▼ 22.50%
January 30, 2004	$0.28B	▲ 24.44%
2003	$0.225B	▲ 112.26%
December 31, 2003	$0.225B	▲ 2.74%
November 28, 2003	$0.219B	▲ 13.47%
October 31, 2003	$0.193B	▲ 12.87%
September 30, 2003	$0.171B	▲ 50.00%
August 29, 2003	$0.114B	▲ 17.29%
July 31, 2003	$97.199M	▲ 8.90%
June 30, 2003	$89.258M	▼ 18.86%
May 30, 2003	$0.11B	▲ 73.99%
April 30, 2003	$63.221M	▼ 11.95%
March 31, 2003	$71.799M	▼ 5.68%
February 28, 2003	$76.119M	▼ 19.67%
January 31, 2003	$94.754M	▼ 10.61%
2002	$0.106B	▼ 71.20%
December 31, 2002	$0.106B	▼ 32.91%
November 29, 2002	$0.158B	▲ 22.48%
October 31, 2002	$0.129B	▲ 19.44%
September 30, 2002	$0.108B	▼ 12.90%
August 30, 2002	$0.124B	▼ 11.43%
July 31, 2002	$0.14B	▼ 33.65%
June 28, 2002	$0.211B	▲ 4.98%
May 31, 2002	$0.201B	▼ 23.86%
April 30, 2002	$0.264B	▼ 11.11%
March 28, 2002	$0.297B	▲ 38.14%
February 28, 2002	$0.215B	▼ 18.87%
January 31, 2002	$0.265B	▼ 27.99%
2001	$0.368B	▼ 26.25%
December 31, 2001	$0.368B	▲ 17.95%
November 30, 2001	$0.312B	▼ 0.32%
October 31, 2001	$0.313B	▲ 54.19%
September 28, 2001	$0.203B	▼ 26.18%
August 31, 2001	$0.275B	▼ 23.18%
July 31, 2001	$0.358B	▼ 2.45%
June 29, 2001	$0.367B	▲ 3.09%
May 31, 2001	$0.356B	▲ 36.92%
April 30, 2001	$0.26B	▲ 18.18%
March 30, 2001	$0.22B	▼ 52.79%
February 28, 2001	$0.466B	▼ 28.53%
January 31, 2001	$0.652B	▲ 30.66%
2000	$0.499B	▼ 63.34%
December 29, 2000	$0.499B	▼ 12.15%
November 30, 2000	$0.568B	▼ 43.71%
October 31, 2000	$1.009B	▼ 26.88%
September 29, 2000	$1.38B	▲ 1.40%
August 31, 2000	$1.361B	— 0.00%

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

📊 Illumina Market Cap and Other Industry Peers

Below are selected companies from the Life Sciences Tools & Services sector / subsector:

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