Cerebras Systems is trading 5.1% up at $200.23 today, following its report of a 279.4% year-over-year increase in capital expenditures, signaling aggressive AI infrastructure expansion. - This surge places its CAPEX-to-sales ratio at an extraordinary 109.7%, underscoring heavy reinvestment beyond current revenue levels. - The company's stock also saw gains earlier in the week, fueled by investor reassessment of its recently announced Finland AI data-center partnership, covering 165 MW and seven-year commitments.