The latest closing stock price for ClearSign Technologies as of August 29, 2025 is 0.58.
An investor who bought $1,000 worth of ClearSign Technologies stock at the IPO in 2012 would have $-861 today, roughly -1 times their original investment - a -14.08% compound annual growth rate over 13 years.
The all-time high ClearSign Technologies stock closing price was 11.75 on January 15, 2014.
The ClearSign Technologies 52-week high stock price is 1.72, which is 196.6% above the current share price.
The ClearSign Technologies 52-week low stock price is 0.46, which is 20.7% below the current share price.
The average ClearSign Technologies stock price for the last 52 weeks is 0.80.
An investor who bought $1,000 worth of ClearSign Technologies stock at the IPO in 2012 would have $-861 today, roughly -1 times their original investment - a -14.08% compound annual growth rate over 13 years.
The all-time high ClearSign Technologies stock closing price was 11.75 on January 15, 2014.
The ClearSign Technologies 52-week high stock price is 1.72, which is 196.6% above the current share price.
The ClearSign Technologies 52-week low stock price is 0.46, which is 20.7% below the current share price.
The average ClearSign Technologies stock price for the last 52 weeks is 0.80.