Indian investors seeking a relatively passive investment approach today have access to multiple mutual fund categories. Among these, traditional index funds and smart beta funds are increasingly discussed because of their relatively lower cost structures compared to many actively managed equity funds. This article explains traditional index funds, smart beta funds, the differences between the two approaches and the types of investors who may evaluate them depending on their investment objectives and risk appetite.
Table of Contents
What are traditional index funds?
An index fund is a type of mutual fund that aims to passively track a market index such as the Nifty 50 or Sensex. These funds aim to replicate the performance of the underlying benchmark, subject to tracking difference and tracking error. Traditional index funds are generally considered one of the relatively simple ways to gain diversified exposure to equity markets without selecting individual stocks.
What are smart beta funds?
Smart beta funds differ from traditional passive funds that simply track market capitalisation-weighted benchmark indices. These funds follow factor-based investment strategies using predefined rules linked to attributes such as value, momentum, quality, dividend yield and low volatility. Although smart beta funds use factor-based stock selection, they generally follow predefined index methodologies and are therefore classified as passive investment products.
For example, a value-based strategy generally selects companies based on valuation measures such as price-to-earnings (P/E) ratio, price-to-book (P/B) ratio, dividend yield and other valuation-related indicators.
Key factors used in smart beta investing
Different smart beta strategies focus on different company characteristics, often referred to as factors. Understanding these factors can help investors better understand how a smart beta fund builds its portfolio and how it may behave across different market conditions:
Value
The value factor focuses on companies that appear relatively undervalued based on selected financial and valuation metrics. The idea is to identify businesses that may be trading below what some investors believe to be their intrinsic value based on measures such as earnings, assets or sales. Common measures include:
- Price-to-book (P/B) ratio
- Price-to-earnings (P/E) ratio
- Price-to-sales (P/S) ratio
- Dividend yield
Dividend yield
This factor focuses on companies that regularly distribute a portion of their profits to shareholders through dividends. Such companies may be viewed as having established business models and a track record of dividend payments, although dividend payouts are not guaranteed. Common measures include:
- Dividend yield
Size
The size factor groups companies based on their market capitalisation, which represents the total market value of a company’s outstanding shares. Depending on the strategy, a smart beta fund may focus on large-cap, mid-cap or small-cap companies, each of which can exhibit different risk and return characteristics. Common measures include:
- Market capitalisation
Momentum
The momentum factor focuses on stocks that have shown relatively strong price performance over a specific period. The underlying premise is that market trends can sometimes persist for a period before changing direction. Common measures include:
- Historical returns
- Risk-adjusted returns
- Historical alpha
Low volatility
The low-volatility factor focuses on stocks that have historically experienced smaller price fluctuations than the broader market. These companies may have shown relatively more stable price movements during certain market conditions, although they remain subject to market risks. Common measures include:
- Standard deviation
- Downside standard deviation
- Beta
Quality
The quality factor focuses on companies with relatively stable financial characteristics, such as earnings consistency, balance sheet metrics and capital efficiency measures. These businesses may demonstrate financial resilience and operational consistency over time. Common measures include:
- Return on equity (ROE)
- Return on capital employed (ROCE)
- Earnings consistency
- Dividend growth
- Balance sheet characteristics
- Financial leverage
- Cash flow characteristics
Head-to-head: Key differences between smart beta and index funds
Understanding how these two approaches differ can help investors compare their methodologies, risks and portfolio construction approaches:
| Feature | Traditional index funds | Smart beta funds |
| Investment strategy | Aim to replicate a broad market index. | Track factor- or strategy-based indices using predefined rules. |
| Weighting methodology | Typically weighted by market capitalisation. | Use alternative weighting methods based on factors or fundamentals. |
| Market exposure | Provide broad market exposure. | Provide exposure to specific investment factors such as value, quality or momentum. |
| Risk profile | Generally reflect the risk characteristics of the underlying benchmark. | May involve additional factor and concentration risks. |
| Performance behaviour | Designed to closely track the benchmark index, subject to tracking difference and tracking error. | May perform differently from broad market indices across market cycles. |
| Cost structure | Generally have relatively lower expense ratios. | May have relatively higher costs due to factor screening and periodic rebalancing. |
| Portfolio construction | Based primarily on market capitalisation. | Based on predefined factor-selection methodologies. |
How to decide: Which is better for you
Investors exploring factor-based investing strategies in addition to broad market exposure may evaluate smart beta funds depending on their investment objectives, understanding of factor cycles and risk appetite.
Smart beta funds generally follow predefined investment rules linked to factors such as value, quality or momentum. These strategies combine passive investing structures with factor-based portfolio construction approaches.
Traditional index funds, on the other hand, aim to track broad market indices using market capitalisation-weighted methodologies.
Which type of fund may suit different investors?
The choice between traditional index funds and smart beta funds often depends on an investor’s goals, experience and comfort with different investment approaches:
First-time investors
Some first-time investors may find traditional index funds easier to understand because of their relatively straightforward structure and benchmark-tracking approach.
Long-term passive investors
Investors seeking broad market exposure through a relatively simple and low-cost investment approach may evaluate traditional index funds as part of their long-term financial planning.
Investors exploring factor strategies
Investors who understand factor-based investing may consider smart beta funds to gain targeted exposure to specific market factors such as value, quality or momentum.
Things to consider before investing
Taking a few key factors into account before investing can help investors make more informed decisions:
- Understanding how the benchmark is constructed can provide insight into how the fund selects and weights its underlying securities.
- Reviewing the expense ratio can help investors understand the costs associated with managing and operating the fund.
- Assessing the investment horizon can help determine whether the fund aligns with an investor’s long-term financial goals.
- Reading scheme-related documents carefully can provide important information about the fund’s investment objective, strategy and risks.
- Understanding the taxation rules applicable to the scheme can help investors evaluate the potential tax implications of their investment.
What are the risks? Understanding the downside
Being aware of potential risks can help investors set realistic expectations and make more informed investment decisions:
- Factor-based strategies may underperform broader market indices during certain market conditions or investment cycles.
- Periodic portfolio rebalancing may affect fund performance and increase portfolio turnover over time.
- Both smart beta funds and index funds remain exposed to overall market movements and economic conditions.
- Some strategies may have higher exposure to specific sectors, stocks or factors, which can increase concentration risk.
- Tracking differences may arise when a fund’s performance does not perfectly match that of its underlying benchmark.
- Factor-based methodologies can be more complex to understand, making it important for investors to understand how the strategy works before investing.
Conclusion
Traditional index funds and smart beta funds both offer passive investment approaches, but their methodologies differ. Traditional index funds focus on replicating the performance of broad market indices through market capitalisation-weighted portfolios. Smart beta funds, on the other hand, use predefined factor-based methodologies to construct portfolios differently from traditional broad market indices.
FAQs
Are smart beta funds actively managed?
No, smart beta funds are generally classified as passive investment products because they follow predefined factor-based index methodologies rather than discretionary stock selection by a fund manager.
Which has lower costs: smart beta funds or traditional index funds?
Traditional index funds generally have relatively lower expense ratios because they primarily track market capitalisation-weighted indices. Smart beta funds may involve relatively higher costs because of factor screening and periodic portfolio rebalancing requirements.
Are smart beta funds suitable for beginners?
Some beginners may find traditional index funds easier to understand because of their relatively straightforward structure. Smart beta funds involve factor-based methodologies that may require a broader understanding of market cycles and investment behaviour.
Where can I buy smart beta funds?
Smart beta mutual funds and ETFs can generally be purchased through asset management companies, registered mutual fund distributors, recognised investment platforms and stockbrokers in India.
Do smart beta funds have higher tracking error than traditional index funds?
Some smart beta funds may show relatively higher tracking differences compared to broad market index funds because of their specialised factor-based methodologies and portfolio construction approaches.
