What Is the Minimum Price Change Required to Incur Impermanent Loss?

Impermanent loss begins to be incurred immediately upon any price change, no matter how small, in the ratio between the two assets after the liquidity is deposited. The loss is a continuous function of the price divergence.

Even a 0.01% price change results in a tiny, non-zero amount of impermanent loss. The loss is zero only when the ratio of the two token prices is exactly the same as when the liquidity was initially provided.