ClearSign Technologies Corporation (CLIR)

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

ClearSign Technologies Corporation (CLIR) is down 33.1% since the beginning of the year. At $4 per share, CLIR is trading 66.8% below its 52-week high of $11. Investors who bought $1,000 worth of CLIR shares 5 years ago would now be looking at an investment worth $75.

ClearSign Technologies Corporation (CLIR) has returned -33.11% so far this year and -40.04% over the past 12 months. Over the last ten years, CLIR has returned -22.97% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.

Based on dividend-adjusted daily data since Apr 25, 2012, CLIR's average daily return is +0.10%, while the average monthly return is +1.43%. At this rate, an investment would double in approximately 4.1 years.

Historically, 45% of months were positive and 55% were negative. The best month was Jun 2020 with a return of +300.0%, while the worst month was May 2020 at -42.2%. The longest winning streak lasted 5 consecutive months, and the longest losing streak was 9 months.

On a daily basis, CLIR closed higher 44% of trading days. The best single day was Jun 16, 2020 with a return of +200.0%, while the worst single day was Sep 3, 2021 at -26.9%.

ClearSign Technologies Corporation has an annualized alpha of 13.95%, beta of 0.93, and R2 of 0.02 versus S&P 500 Index. Calculated based on daily prices since April 25, 2012.

• This stock participated in 160.54% of S&P 500 Index downside but only 32.56% of its upside - more exposed to losses than it benefited from rallies.
• R2 of 0.02 means this stock moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.

CLIR ranks 26 for risk / return — below 26% of stocks on our site. The returns aren't fully compensating for the risk involved. This isn't necessarily a dealbreaker, but factor it into your decision — especially if you're risk-averse.

The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.

The table below displays the maximum drawdowns of the ClearSign Technologies Corporation. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.

The maximum drawdown for the ClearSign Technologies Corporation was 97.06%, occurring on Mar 20, 2026. The portfolio has not yet recovered.

The current ClearSign Technologies Corporation drawdown is 96.83%.

The chart below shows the rolling one-month volatility.

The chart below illustrates the trends in the financial health of ClearSign Technologies Corporation over time, highlighting three key metrics: Total Revenue, Earnings Before Interest and Taxes (EBIT), and Net Income.

The Valuation section provides an overview of how ClearSign Technologies Corporation is priced in the market compared to other companies in the Pollution & Treatment Controls industry. It includes key financial ratios that help investors assess whether the stock is undervalued or overvalued.