SENSEX is the benchmark index of the Bombay Stock Exchange (BSE) in India. The SENSEX index is made up of 30 of the BSE's largest and most actively traded stocks, and it serves as a gauge for the Indian economy. It is amarket capitalization-weighted and float-adjusted. The Sensex is India's oldest stock index, having been established in 1986 by Standard & Poor's (S&P).

The UPSC Indian Economy Syllabus includes the Sensex which is described in this article.

SENSEX – Introduction

• On January 1, 1986, the Sensex was launched. It is a bellwether index as well as an investable index that tracks the performance of India's 30 largest and most financially healthy corporations.
• These firms are listed on the BSE (Bombay Stock Exchange) and represent some of India's largest and most important industries. As a result, it is India's most trackedindex.
• The Indian rupee (INR) and US dollar (USD) are used to calculate the SENSEX. The index's mean total market cap was 3.71 trillion rupees as of August 31, 2021. The following were the top five index constituents:
  • Reliance Industries
  • HDFC Bank
  • Infosys
  • Housing Development Finance Corp.
  • ICICI Bank
• The SENSEX methodology has been developed and evolved by the evolution of the Indian economy. When it first started, it was computed using market capitalization, but in September 2003, it switched to a free-float capitalization technique. This gave a weighting to a company's impact on the index.
• Because the index uses the float rather than the outstanding shares of a firm, it excludes restricted stocks that can't be sold easily, such as those held by corporate executives.
• Despite the modifications in methodology, the index's goals have remained the same.
• The SENSEX is re-evaluated twice a year, between June and December.
• The S&P BSE index Committee chooses its components based on numerous criteria:
  • They should be listed on the BSE in India.
  • They should be a large-to mega-cap company.
  • The stocks should be relatively liquid.
  • The companies should make money from their core activities.
  • They should try to keep the sector balanced, similar to the Indian stock market.

SENSEX – History

• The S&P BSE SENSEX, which has been published since January 1, 1986, is considered the pulse of India's local stock markets.
• The SENSEX was given a base value of 100 on April 1, 1979, and a base year of 1978–79.
• Since India's economy opened up in 1991, the index has risen significantly. The greatest increases were in the twenty-first century when it increased from around 5,000 in early 2000 to over 60,000 in January 2022. This is mostly due to India's booming economy, which has been growing at one of the world's fastest rates for years.
• The BSE debuted DOLLEX-30, a dollar-linked equivalent of the SENSEX, on July 25, 2001.

How Does the SENSEX Work?

• The S&P BSE SENSEX index, also known as the SENSEX or SENSEX Index, is a benchmark index that measures the performance of 30 of India's largest and most liquid public firms.
• The Bombay Stock Exchange, India's largest and one of the world's largest stock exchanges, provides the companies that make up the Sensex.
• The Sensex is used by many investors across the world as a barometer of the general status of the Indian economy, which has developed significantly in recent decades.

How Is the SENSEX Calculated?

• A free-float capitalization method is used to calculate the Sensex. This strategy is similar to the market-capitalization weighted method, which weights firms based on their percentage of the index's overall market capitalization.
• As a result, SENSEX gives greater weight to the index's top companies. Unlike the market-capitalization method, however, the free-float capitalization method only considers shares that are freely available to trade, rather than restricted shares or shares held by company insiders.

Conclusion

The SENSEX is India's benchmark stock index, and it includes 30 of the country's largest and most well-capitalized stocks, all of which are listed on the BSE. It indicates the performance of the economy with the floating index and gives indicators to the investors regarding the same.

FAQs

MCQs

1. What is the base year for the Sensex calculation?

A) 1990-91
B) 1985-86
C) 1978-79
D) 2000-01

2. Which of the following companies is NOT part of the Sensex?

A) Tata Consultancy Services
B) Reliance Industries
C) Infosys Technologies
D) Maruti Suzuki

3. Which factor has the LEAST impact on the movement of the Sensex?

A) Interest rates
B) Global commodity prices
C) Corporate earnings
D) Local weather conditions

4. What is the Sensex considered as a barometer of?

A) Political stability in India
B) National GDP growth
C) Investor sentiment and economic health
D) Government tax policies

5. The Sensex is a benchmark index of which stock exchange?

A) National Stock Exchange
B) Bombay Stock Exchange
C) Kolkata Stock Exchange
D) Delhi Stock Exchange

GS Mains Questions and Model Answers

Q1: Discuss the significance of the Sensex as a financial indicator. How does it help investors in making investment decisions?

Answer: The Sensex is a key financial indicator that reflects the overall health of the Indian stock market and the broader economy. By tracking the performance of the top 30 companies, it provides investors with a snapshot of market sentiment, economic trends, and sectoral performance. A rising Sensex indicates a positive market outlook, which may encourage investment, while a falling Sensex signals potential risks and economic challenges. Investors use the Sensex to assess market conditions, identify investment opportunities, and make informed decisions regarding their portfolios. Additionally, the Sensex helps investors gauge the performance of specific sectors, such as technology, energy, and finance, as these are well-represented in the index.

Q2: What factors contribute to the volatility of the Sensex? How can investors manage risks associated with market fluctuations?

Answer: Several factors contribute to the volatility of the Sensex, including changes in interest rates, inflation, global market trends, corporate earnings, and political events. Geopolitical tensions, policy announcements, and external economic shocks can also cause significant fluctuations in the Sensex. Investors can manage risks associated with market volatility by diversifying their portfolios, investing in both growth and defensive sectors, and using hedging strategies such as options and futures. Regular monitoring of market conditions and having a long-term investment perspective can help mitigate the impact of short-term fluctuations on investment returns.

Q3: Analyze the role of the Sensex in reflecting the broader economic health of India. How does it relate to key economic indicators?

Answer: The Sensex plays a crucial role in reflecting the broader economic health of India by tracking the performance of leading companies across various sectors. As a market-based indicator, the Sensex provides insights into investor sentiment, economic growth, inflation expectations, and corporate profitability. A rising Sensex is often associated with positive economic indicators, such as strong GDP growth, low inflation, and high corporate earnings, while a declining Sensex may signal economic slowdown, rising inflation, or corporate distress. The Sensex is closely watched by policymakers, economists, and investors as a barometer for the overall economic outlook of the country.

Previous Year Questions on Stock Markets and Sensex

1. UPSC CSE Prelims 2019:

Question: The Sensex is associated with which of the following stock exchanges?

A) Bombay Stock Exchange
B) National Stock Exchange
C) Calcutta Stock Exchange
D) Delhi Stock Exchange

Answer: (A)

Explanation: The Sensex is the benchmark index of the Bombay Stock Exchange (BSE), which tracks the performance of the top 30 companies listed on the exchange.

2. UPSC CSE Mains 2020 (GS Paper 3):

Question: "Discuss the role of stock market indices such as the Sensex in reflecting the economic health of a country. How can investors use the Sensex to make informed investment decisions?"

Answer: Stock market indices like the Sensex reflect the overall performance of the stock market and, by extension, the economic health of a country. The Sensex, by tracking the top 30 companies in India, provides insights into investor sentiment, market conditions, and economic growth. Investors use the Sensex to gauge the market's direction, sector performance, and economic outlook. A rising Sensex generally indicates confidence in the economy, while a declining Sensex may signal concerns about economic growth. By analyzing the Sensex and related economic indicators, investors can make informed decisions about asset allocation, risk management, and investment opportunities.