IREN has recently purchased 4,200 NVIDIA Blackwell GPUs and secured financing to expand its AI cloud infrastructure to a total of 8,500 GPUs. Following this development, the company's stock has reached multiple new 52-week highs throughout the trading day, with prices climbing from $21.85 to a peak of $23.26. The stock showed strong upward momentum, closing the day up 8%. Additionally, there was notable options activity with the opening sale of 2,100 March $22 put options at $5.40 bids. Another stock, CIFR, also recorded a daily high of $6.73, marking a 5.5% increase.