Promising Potential of Silevertinib in EGFR-Mutant NSCLC: Buy Rating ReiteratedValuation and Risks. We employ a discounted cash flow (DCF)-based valuation methodology, which assigns a 15% probability of launch to BDTX-1535 in EGFR+ NSCLC. We apply a 12% discount rate, 29% effective tax rate, and 1.5% terminal growth rate. These assumptions yield a total firm value of ~$597M, which translates into a price objective of $10 per share, assuming 57.1M shares outstanding.