Fuel Tech, Inc. (FTEK)

Last Closing Price: 1.48 (2026-07-20)

Put-Call Ratio (Open Interest) (10-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

Fuel Tech, Inc. (FTEK) had 10-Day Put-Call Ratio (Open Interest) of 0.0350 for 2026-07-20.