What is Delta One? Delta one products are financial derivatives that have no optionality and as such have a delta of (or very close to) one – meaning that for a given instantaneous move in the price of the underlying asset there is expected to be an identical move in the price of the derivative. Interested in learning more? Related articles What is Expected Variance? What is Delta Profile? What is Gamma Flip? What is Forward Implied Volatility? What is a Gamma Profile?