Riot Platforms ($RIOT) has seen a surge in its stock price following news that the company is shifting its focus from Bitcoin mining to artificial intelligence (AI) and high-performance computing (HPC) data centers. Analysts at Piper Sandler have reiterated an 'Overweight' rating on the stock, setting a price target of $23, which implies a potential upside of approximately 76% from current levels. This strategic pivot is expected to leverage the company's remaining 600 megawatts of power capacity. In related trading activity, the put/call ratio for $RIOT stands at 30,000 calls to 161,000 puts, indicating a bearish sentiment among traders. Meanwhile, other stocks such as $NBIS have also gained attention, with reports of strong trading activity and positive sentiment surrounding the stock's recent performance.