Delta is undoubtedly the most watched Greek value in options trading, as it directly establishes the link between the price of an option and the price of the underlying asset. In short, Delta measures the expected change in the option price when the price of the underlying asset changes by 1 unit. The speedometer of price changes (The Speedometer) For call options, Delta ranges between 0 and 1; for put options, Delta ranges between -1 and 0...