Bitcoin climbs above $81,000, its highest since January, amid steady bullish options activity.

Bitcoin surged past $81,000 during Tuesday's Asian session, marking its strongest level since late January and a 5.3% weekly gain. Traders have been building low-cost call option strategies betting on steady price gains rather than sharp spikes. Meanwhile, Dogecoin led weekly crypto gains with a 12.4% rise and futures open interest hitting yearly highs, signaling strong market interest. Despite geopolitical tensions in the Middle East affecting oil prices and U.S. equities showing little change, key corporate earnings and employment data releases are expected later this week, which could influence market direction.