A high DOL means

A high Degree of Operating Leverage (DOL) indicates that a company has a significant proportion of fixed costs in its cost structure relative to variable costs. This means that a small change in sales can lead to a large change in operating income or profit, magnifying both potential gains and losses. Consequently, companies with high DOL are more sensitive to fluctuations in sales, making them riskier but potentially more rewarding during periods of increasing demand.