Deciding whether Ioneer is a good buy depends entirely on an investor's risk tolerance, portfolio strategy, and outlook on the green energy transition. Supporters view the stock as an attractive long-term play due to its massive lithium and boron resource base in Nevada and its potential to supply critical minerals domestically. However, risk-averse investors often avoid the equity due to its lack of current operating cash flows, dependence on single-project execution, and the binary nature of upcoming environmental regulatory approvals.