LTBR Market Cap History — Lightbridge Capitalization Over Time

As of 4/28/2026 Lightbridge has a market cap of 440.74 million. Investors often follow the LTBR market cap history to compare the size of the company over time.

This page shows LTBR market capitalization trends over time, with 42 market cap datapoints presented, dating back to 8/5/2016.

Quick links: Market Cap History Table  |  Market Cap History Chart  |  About Lightbridge
LTBR Market Cap History



Below is a table of the LTBR market cap history going back to 8/5/2016:

Date LTBR Market Cap
8/5/201614.64M
11/10/20168.54M
3/2/20179.85M
5/3/201713.48M
7/31/201711.49M
10/26/201712.07M
3/8/201834.47M
5/1/201827.92M
7/26/201827.41M
10/18/201828.38M
3/1/201921.32M
5/7/201931.73M
7/17/201925.39M
8/16/201922.91M
10/21/201915.79M
11/5/201920.88M
3/2/202012.85M
5/1/202011.71M
7/20/202017.64M
11/5/202015.71M
3/24/202139.62M
5/12/202134.56M
8/3/202140.90M
11/5/202177.89M
3/1/202287.57M
4/20/202285.68M
5/3/202281.76M
7/15/202257.41M
10/28/202260.00M
3/30/202348.75M
5/11/202347.55M
7/25/202377.93M
10/30/202352.76M
2/21/202440.57M
5/10/202435.08M
7/30/202444.81M
10/31/2024153.25M
5/1/2025210.51M
8/8/2025356.84M
10/31/2025868.52M
2/20/2026439.88M
4/28/2026440.74M

Also see: LTBR Shares Outstanding History
and LTBR YTD Return
LTBR Historical Market Cap:
+41.87% CAGR
LTBR Historical Market Cap: +41.87% CAGR

Mouse over chart for data details
8/5/2016 ...4/28/2026
Lightbridge Corporation is focused on developing advanced nuclear fuel technology. Co. is developing Lightbridge Fuel, a proprietary nuclear fuel technology for existing light water reactors and pressurized heavy water reactors, which is expected to significantly enhance reactor safety, economics, and proliferation resistance. It also develops new nuclear power plants, large and small, and enhances proliferation resistance of spent nuclear fuel while supplying clean energy to the electric grid. We show 42 historical shares outstanding datapoints in our LTBR shares outstanding history coverage, used to compute LTBR market cap on those dates.

Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing LTBR market cap history over the course of time is important for investors interested in comparing LTBR's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of LTBR versus a peer is one thing; comparing LTBR market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like LTBR can fluctuate over the course of history. With this page we aim to empower investors researching LTBR by allowing them to research the LTBR market cap history.
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Video: The Importance of Market Cap
Lightbridge (LTBR) is categorized under the Materials sector; to help you further research historical market cap numbers, below are some other companies in the same sector:

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