<p>Book value, also known as net asset value, is a fundamental metric used in financial analysis to determine the intrinsic value of a company. It is calculated as the difference between a company's total assets and its total liabilities.</p>

<h2>How It Works</h2>
<p>The book value per share (BVPS) is calculated by dividing the company's total book value by the number of outstanding shares. This gives investors an idea of what the company would be worth if it were liquidated today. The formula for BVPS is:</p>
<p><strong>BVPS = (Total Assets - Total Liabilities) / Number of Outstanding Shares</strong></p>
<p>For example, if a company has total assets of $100,000, total liabilities of $40,000, and 10,000 outstanding shares, its book value per share would be:</p>
<p><strong>BVPS = ($100,000 - $40,000) / 10,000 = $6</strong></p>

<h2>Why It Matters</h2>
<p>Book value is a useful tool for investors as it helps to understand the intrinsic value of a company. It can be used to compare the market value of a company's stock to its book value to determine if the stock is undervalued or overvalued. The price-to-book ratio (P/B ratio) is calculated by dividing the stock's price by its book value per share. A P/B ratio above 1 indicates that the stock is overvalued, while a P/B ratio below 1 suggests that the stock is undervalued.</p>
<p>However, it's important to note that book value has its limitations. It is based on historical costs and may not reflect the true value of a company's assets. Additionally, it does not take into account intangible assets, such as goodwill and intellectual property, which can be significant in today's economy. Therefore, it's always a good idea to use book value in conjunction with other valuation metrics when analyzing a company.</p>