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What is an Index Fund Rebalancing Trading Strategy & How to Use it?

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In India, indices like Sensex and Nifty have become the top indices to watch. With the increase in online trading, retail investors seem to be more interested in investing. Index fund rebalancing is essential to update index funds when nifty or other index rises or falls. To invest smartly, investors must have a basic understanding of how index funds work.

As part of the rebalancing process, companies are added to or removed from the following indices, and the full news can be found in the financial news or on the website. In this article, you can learn about index fund rebalancing.

Understanding Index Fund Rebalancing Trading Strategy

Rebalancing a portfolio or a market index refers to the process of rebalancing the components of an investment portfolio. A modification is necessary to ensure that the portfolio remains balanced and diversified. For rebalancing, shares must be added or removed to manage the weight and ups and downs of financial assets. Over time, rebalancing a portfolio is essential to maintain an optimal financial portfolio. As a result of changing assets, the stock indexes may be able to move in a positive direction and avoid disruptions in their movements.

It is important to understand that indices are basically hypothetical portfolios created by stock exchanges that include only the top companies listed on their exchanges. These companies are listed on various stock exchanges. Certain conditions must be met for the companies to be included in the indices. Market capitalisation is one of the indicators, as well as sectors.

The Sensex and Nifty indices are important for retail and institutional investors in India. To compare the performance of the overall market, it is a reliable benchmark. Indexes are also used as indicators to provide insight into a country’s economy and market. In addition, investors can use online share trading app to get market insights and make informed trades.

In terms of how rebalancing works, traditionally, these indices have assets allocated with 50% stocks and 50% bonds. However, if the stock price rises over time, the allocation will shift from 50-50 to 70% for stocks and vice versa for bonds. According to the situation, the portfolio manager can align the percentage of financial instruments.

Type of Rebalancing

You can go through various types of rebalancing.

  • Calendar Rebalancing

In a calendar rebalancing, financial holdings within a portfolio are analysed and adjusted at predetermined intervals. Every year, a lot of long-term investors rebalance their portfolios. Investors rebalance their financial portfolios quarterly, monthly, or yearly depending on their goals and market conditions. In addition, there are weekly rebalancings, but these can cost a penny to the investor fee. A major benefit of calendar rebalancing is that it can be more responsive and less time-consuming. However, the drawback of these rebalancings is that no changes are made at the time of market movement since the rebalancing is pre-scheduled.

  • Constant- Mix Rebalancing

Constant-Mix rebalancing focuses on the percentage of assets in a portfolio. A specific range has been assigned to each asset class in the following portfolio. As part of an allocation strategy, about 30% of assets should be allocated to emerging market equities, 30% to blue chip companies, and 40% to government bonds. Additionally, each asset class in this portfolio has a 5% corridor.

  • Smart Beta Rebalancing

The smart beta rebalancing is a periodic rebalancing that adjusts the indexes to changes in the market capitalisation and stock value. To avoid market inefficiencies, it uses a rule-based approach based on market capitalisation to invest in index funds. Smart beta rebalancing uses additional data and metrics, such as book value, return on capital, and P/E ratio. An index rebalancing strategy is quite complex and involves a high level of systematic analysis, which is not present in a simple index investment strategy.

Advantages and Disadvantages of Rebalancing Index Fund

Investors should be aware of the following advantages and disadvantages of rebalancing index funds.


  • Depending on market conditions, the portfolio is aligned and adjusted accordingly.
  • A predetermined asset allocation can be maintained by an investment plan.
  • The asset balance is determined based on logical and strategic investment decisions.
  • A portfolio manager or experienced individual manages it.


  • A transaction can negatively impact portfolio net income.
  • Rebalancing can harm investments and can hinder portfolio growth if it is unnecessarily carried out.


In dynamic markets like India, where indices such as the Sensex and Nifty play an important role, the index fund rebalancing trading strategy is vital for investors. It is essential to rebalance a portfolio or index to ensure it remains well-balanced and diversified, adapting to market changes and optimising financial performance. Also, in an increasingly technological environment, algo trading (algorithmic trading) can assist in executing and optimising rebalancing strategies. Algorithmic trading enables portfolio management by leveraging algorithms based on predefined rules. 

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