Price-threshold markets on individual companies assume the share price is a stable quantity, and corporate actions break that assumption: a stock split divides the price, a special dividend drops it, a ticker change or reverse merger can leave the referenced security ambiguous. Whether a market adjusts for these events is in its rules and often is not what traders assume. You watch the corporate-action calendar and trade the markets whose rules and whose price have quietly diverged.
Markets on Polymarket where corporate-action resolution ambiguity is the natural play: