However, the bigger headline is that Tata Consultancy Services (TCS), the most valuable IT services company in the country, and the biggest in the entire Tata Group, has seen a bigger market capitalization erosion compared to the entire group put together. And this is only in the first six months of the year so far.
Since the start of the year, TCS has lost nearly ₹4 lakh crore in market capitalization, higher than the ₹3.6 lakh crore that the entire Tata Group has lost.
The Tata Group Value Erosion
At the start of the year, Tata Group’s overall market cap was at ₹27.7 lakh crore. Today it stands at ₹24 lakh crore. For TCS, which began the year at ₹11.6 lakh crore, that figure now stands at less than ₹8 lakh crore. Despite this, TCS still remains the biggest company within the Tata Group.
The sell off in Trent has relegated it to the fourth spot, but the outperformance in Titan and the outperformance in Tata Steel have taken them to number two and number three, respectively. And Tata Motors, passenger vehicles, after this recent resurgence that the stock has seen, has made its way into the top five.
If TCS has lost nearly ₹4 lakh crore in market capitalization, there have been other underperformers within the Tata Group this year too.
If Tata Motors PV has done well, Tata Motors CV hasn’t quite. It has lost almost ₹20,000 crore in market cap. Trent has lost over ₹4,000 crore, Tata Consumer has lost nearly ₹8,000 crore, and Tata Elxsi has lost nearly ₹6,000 crore rupees in market cap so far this year.
Which Tata Group Stocks Have Outperformed In 2026?
Titan and Tata Steel feature among the top Tata Group outperformers this year. Tata Steel has added nearly ₹30,000 crore in market capitalization so far this year, while Titan has added nearly ₹14,000 crore. Among the other outperformers, Tata Power has added nearly ₹9,000 crore, while Tata Technologies has emerged as a surprise package.
From starting the year at a market cap of nearly ₹26,000 crore, the stock almost fell on the verge of retesting its IPO price, but has seen some buying interest emerge at lower levels, and has since added ₹5,500 crore in market cap so far.
The Underperformance Of TCS
It has been a very forgettable start to the year, and not just for TCS, of course, but for the entire broader IT sector in general, but TCS currently is trading at the lowest level since June of 2020. For the first six months of the year, including June, it has declined in five of them, and the last time the stock was down more than 30% in a calendar year goes all the way back in 2008 when it had declined 55%.
