BitMine Immersion Technologies (BMNR) stock rose 12% on March 31, closing at $19.78, following a bullish upgrade from B. Riley, which raised its price target to $33 from $30. The stock's rally was driven by a short squeeze, as traders closed bearish positions, rather than new buying interest. Despite the price surge, institutional buying pressure remains absent, as indicated by the Chaikin Money Flow indicator. BitMine's recent acquisition of 71,179 ETH, increasing its holdings to 4.73 million ETH, and the launch of its MAVAN Ethereum staking platform, have bolstered its bullish outlook. However, the stock remains within a descending channel that has contained its price since December. A daily close above $21.22 is needed to confirm a breakout, while failure to hold $19.46 could signal a return to lower levels.