Canceling a contract for a technicality when market prices are falling is considered an acceptable and ethical practice.

Canceling

involves terminating an agreement, order, or subscription, effectively ending an arrangement or contract.

Technicality

A minor detail affecting a legal decision or process that may have implications for the outcome of a case or the execution of a contract.

Ethical Practice

The adherence to moral principles and standards in professional and personal actions, ensuring fairness, transparency, and integrity.