Non-Negativity Constraint

Constraint

A non-negativity constraint, within cryptocurrency derivatives and options trading, fundamentally restricts variable values to be zero or positive, reflecting the inherent inability to hold a negative quantity of an asset. This stipulation is critical in pricing models, particularly those employing binomial or trinomial trees, where negative option positions are economically nonsensical. Its application extends to portfolio optimization, preventing short-selling constraints from generating unrealistic or arbitrage-free solutions, and ensuring model outputs align with real-world limitations.