As part of our ongoing series at The Acquirer’s Multiple, each week we spotlight a stock from our Stock Screeners that may represent a deeply undervalued opportunity hiding in plain sight. This week’s spotlight is SIGA Technologies Inc — a niche biodefense pharmaceutical company with a highly profitable antiviral franchise, fortress balance sheet, and extraordinary valuation metrics that suggest the market is dramatically underestimating its intrinsic worth.Business OverviewSIGA Technologies is a specialty ...