NSE Market Cap & Weightage Calculator

What is Market Capitalization?

Market Capitalization (or Market Cap) is the total value of all of a company's shares of stock. It is calculated by multiplying the current stock price by the total number of outstanding shares. In India, companies are typically categorized as:

• Large Cap: Top 100 companies by market cap (e.g., Reliance, TCS, HDFC Bank).
• Mid Cap: Companies ranked from 101 to 250.
• Small Cap: Companies ranked from 251 onwards.

Free-Float vs. Total Market Cap

While **Total Market Cap** considers all shares, indices like the Nifty 50 and Sensex use **Free-Float Market Cap**. This only includes shares that are available for trading by the general public, excluding promoter holdings, government holdings, and other locked-in shares.

Why Index Weightage Matters

Stocks with higher weightage have a greater impact on the index's movement. For example, a 2% move in Reliance Industries will move the Nifty significantly more than a 2% move in a smaller constituent like BPCL. Understanding weightage helps traders anticipate index movements during major corporate events or earnings releases.