Reducing risk therefore always means reducing the potential benefits. Therefore, hedging is largely a technique designed to reduce potential losses (and not maximize potential benefits). If the investment you guarantee earns money, you usually also reduce your potential profit. However, if the investment loses money and your coverage has been successful, you have reduced your loss. In the index sector, moderate price declines are very common and are highly unpredictable. Investors focused on this sector may be more concerned with moderate declines than with sharper declines. In these cases, a bear spread is a common hedging strategy. The introduction of stock index futures has a second way to hedge risks for a single stock by selling short-the-market, unlike any other or a selection of shares. Futures are generally very fungible  and cover a variety of potential investments that they are easier to use than trying to find another action that is somehow the opposite of a selected investment. Future blankets are often used as part of the traditional long/short game. For investors who fall into the buy-and-hold category, there seems to be little or no reason to know more about hedging. However, given that large companies and investment funds tend to engage in regular security practices and because these investors could follow or even participate in these large financial firms, it is useful to understand what hedging measures involve to better track and understand the actions of these larger players.
The best way to understand coverage is to consider it as a form of insurance. When people decide to cover themselves, they insure themselves against the consequences of a negative event on their finances. This does not prevent all negative events from occurring. However, if a negative event occurs and you are properly protected, the impact of the event will be reduced. A hedging strategy generally refers to the general risk management policy of a company acting financially and physically, on how to minimize its risks. As the term “hedging” indicates, this risk reduction is generally achieved through the use of financial instruments, but a hedging strategy, as used by commodity traders and large energy companies, generally refers to an economic model (including financial and physical transactions). In practice, protection takes place almost everywhere. For example, if you take out homeowner`s insurance, you are prepared for fires, burglaries or other unforeseen disasters. Delta-Hedging reduces the financial risk of an option by distinguishing itself against price changes in the underlying.
This term is called as since Delta is the first derivative of the value of the option with respect to the price of the underlying instrument.