Investor pushback on SB Energy's targeted $50 billion-plus valuation has created closely matched odds between a $40-60 billion closing market cap and no IPO before January 2027. The SoftBank-backed AI data center developer filed its S-1 in early September 2026 seeking $5-7 billion, highlighting an 8.8 GW contracted portfolio, a $439 billion backlog, and Nvidia's $3 billion commitment including prepaid shares. However, premarketing revealed skepticism over zero operational facilities, heavy reliance on OpenAI as tenant and investor, widening losses, and community resistance to gigawatt-scale projects. These factors, plus broader questions about AI infrastructure spending sustainability, have delayed the roadshow and introduced timing uncertainty into trader consensus.