This document discusses synthetic put options, which are created by combining a short stock position with a long call option on the same stock. This combination mimics the payoff of a long put option. The document defines synthetic puts and outlines their characteristics, including their profit/loss potential and breakeven points. It also provides historical price data for a synthetic put on ADA/USD from December 2017 to February 2018, showing the monthly opening, high, and low prices.