Why Nifty IT Is Falling: Key Reasons Behind the 20% Crash

Nifty IT has fallen by around 20% in the last one month. This is a sharp correction for a sector that has traditionally been seen as stable in the Indian market. Instead of reacting to the fall, it is important to understand what is driving this move. From an investor’s perspective, three key factors stand out: the way the index is structured, the rise of AI and automation, and a shift in valuations, also known as PE rerating.

Understanding the index composition

Nifty IT is not evenly spread across companies. A few large companies dominate the index.

• Infosys has a weight of around 28.9%
• TCS has around 21.9%
• HCL Tech and Tech Mahindra together add another 22%

This means the top four companies together contribute more than 70% of the index. In the last one month:

• Infosys and TCS are down around 12%
• HCL Tech and Tech Mahindra are down around 11%

Because of their high weight, these declines have a large impact on the index.This is an important point for investors. Index movement is heavily influenced by a few companies.

Valuations and what the market was expecting

Even after a sharp correction, IT stocks are not trading at very low valuations.

• Infosys and TCS are still around 17 times earnings
• HCL Tech is above 20
• Tech Mahindra is close to 27

PE (Price to Earnings ratio) means how much investors are paying for each rupee of profit. Higher PE usually reflects expectations of strong and consistent growth.Now compare this with actual growth and profitability.

This table highlights two important things.

• First, growth is steady but not very high. Most companies are growing at around 10%, while Tech Mahindra is significantly weaker.
• Second, and more importantly, profit growth is slower than revenue growth.

When profit grows slower than revenue, it indicates margin pressure. Margins refer to how much profit a company earns from its revenue. In simple terms, companies are growing, but keeping less profit from that growth. From an investor’s perspective, this creates a clear mismatch. You have companies trading at mid-to-high valuations, but:

• Growth is moderate
• Profitability is under pressure

This is exactly where PE rerating comes into play. When growth and margins do not justify valuations, the market adjusts the multiple downward.In my view, this correction is not just about short-term sentiment. It reflects a reset in expectations.

Earlier, IT companies were valued at a premium because of predictable growth and strong margins. Now, growth is moderate and margins are weakening.That naturally leads to lower valuation multiples.

Going forward, returns are likely to depend more on actual earnings growth rather than valuation expansion. For investors, this means being more selective and realistic about what the sector can deliver.

The impact of AI and automation

• The traditional IT services model was based on manpower, where more employees meant higher billing and revenue
• AI and automation are changing this model by enabling work to be completed faster, with fewer people, and reducing the need for repetitive manual tasks
• Tools like AI copilots and systems such as Claude are accelerating this shift across the industry
• For clients, this means faster delivery and lower costs, as projects can be executed more efficiently
• For IT companies, this creates pricing pressure and margin pressure, as they may earn less per project despite delivering similar or higher output

PE rerating due to structural changes

This is where PE rerating becomes important.When growth is strong and predictable, companies trade at higher PE multiples. When growth slows or becomes uncertain, the PE multiple reduces. This is called PE derating or rerating. What we are seeing in Nifty IT is a rerating.

The market is adjusting valuations based on:

• Moderate growth
• Pressure on margins
• Structural changes due to AI

This is not just a fall in prices. It is a change in how the market values the sector.

What should investors do or watch?

Instead of reacting to short-term price movements, investors should focus on how the sector is evolving and what that means for future returns.

• How companies are adopting AI: Companies that use AI to improve efficiency, reduce costs, or build new services are more likely to stay competitive in this changing environment
• Margin trends over the next few quarters: If profit growth continues to lag revenue growth, it will confirm that margin pressure is not temporary
• Global demand and deal pipeline: Since Indian IT companies depend heavily on the US and Europe, trends in tech spending and large deal wins will be important indicators
• Valuations in relation to growth: Even after the fall, valuations should be judged against realistic growth expectations, not past performance
• Deal wins and their quality, not just quantity: Deal activity may remain strong, but investors should track whether these deals are translating into real revenue growth. With AI and automation, deal sizes, pricing, and billing models are changing, which means more deals do not necessarily lead to higher growth or margins
• Company-specific execution: The gap between companies may widen. Strategy, client mix, and adaptability will play a bigger role than before

Conclusion

The 20% fall in Nifty IT is not just a market reaction, but a reflection of multiple underlying factors coming together, including a concentrated index structure, moderate growth, visible margin pressure, a structural shift driven by AI and automation, and a rerating of valuations. While the sector continues to remain important for India’s economy, the way it grows and operates is clearly evolving. For investors, this is a phase where understanding these changes matters more than simply reacting to the fall.

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