Shares of BitMine Resource Corp. surged again on Monday, rising about 24% intraday and capping a five-day rally that has doubled the stock’s value. The move extends a roughly 95% advance for the week, putting the Miami-based cryptocurrency-mining company among the top performers on U.S. exchanges. Derivatives trading intensified alongside the share-price spike. About 237,000 BMNR options changed hands in the first two hours of the session—on pace to eclipse the stock’s total open interest of 386,000 contracts—driven largely by bullish call-spread purchases above the $10 strike. Some traders cited market strategist Tom Lee’s endorsement of the company as a trigger for the sudden interest. The frenetic activity has pushed BitMine Resource to the top of retail-trading leaderboards and fanned debate over whether the momentum reflects improving fundamentals or a short-term blow-off move. The company has not issued new statements this week, and no major brokerages currently cover the stock.