Shares and stocks can both help individuals and organisations invest in businesses while also receiving a portion of the profits. These two financial instruments are also very important sources of capital for companies, both in the short and long run. However, there are some significant differences between shares and stocks, which we will discuss below to gain a better understanding of the subject:
Shares:
A share is a financial instrument that represents the part ownership of a company.
The value of two different shares of a company can be equal to each other.
There is a nominal value that is associated with shares.
Stocks:
A stock is a financial instrument that represents part ownership in one or more organizations.
The value of two different stocks of a company may or may not be equal to each other.
There is no nominal value that is associated with stocks.

The terms "stock" and "share" are often used interchangeably, but they refer to different aspects of ownership in a company. A "share" represents ownership in a specific company and is a unit of ownership held by an individual shareholder. It signifies a claim on a portion of the company's assets and earnings.

On the other hand, "stock" is a broader term that encompasses the entire ownership structure of a company. It refers to the total shares outstanding, including those held by institutional investors, insiders, and the public. Stocks are typically categorized into common and preferred shares, each with distinct rights and privileges.

In essence, a "share" is an individual unit of ownership, while "stock" refers to the collective ownership structure of a company, encapsulating all shares issued by that company.