AI and Data-Centre Stock Sell-Off Weighs on Smallcaps Despite a Strong Market; IDBI Bank and Emmvee Photovoltaic Also Decline Sharply
Small-cap stocks came under renewed selling pressure on Thursday, October 15, even as benchmark indices advanced sharply. Shares of Sterlite Technologies, HFCL and MTAR Technologies hit their 5% lower circuit limits, while Netweb Technologies and several other technology-linked companies faced selling amid concerns over valuations, inflation and global technology-sector weakness.
At 10:04 AM, the Nifty Smallcap 100 index was down 0.86% at 19,218, contrasting with a roughly 1% rally in the Nifty 50. The divergence highlighted how gains in the broader market were not translating into uniform buying interest across smaller companies.
The weakness was concentrated in stocks associated with artificial intelligence infrastructure, data centres, telecommunications and other technology-related themes. Investors were reassessing valuations following strong price appreciation in several counters earlier in 2026.
Sterlite Technologies, HFCL and MTAR Technologies Hit Lower Circuits
Sterlite Technologies (STL), HFCL and MTAR Technologies were among the most closely watched decliners during the session. Their shares were locked at the 5% lower circuit, with sellers dominating trading at the reported prices.
Sterlite Technologies, which provides optical connectivity and network infrastructure solutions, had witnessed a substantial rally earlier in the year. The stock reached a record high of ₹1,051.10 on October 6, 2026. Its reported calendar-year gain had reached approximately 757%, making it particularly vulnerable to profit-booking after such a sharp advance.
HFCL, a provider of optical fibre cables, connectivity products, telecommunications equipment and defence-related solutions, had also rallied strongly. Its share price had surged approximately 254% in calendar year 2026 before the latest decline. The stock touched an all-time high of ₹275.91 on October 7.
MTAR Technologies, which operates in precision engineering and supplies components for specialised industrial and technology applications, also faced selling pressure. Investors may be reassessing expectations for companies whose market valuations have risen rapidly in anticipation of future growth.
The lower-circuit moves indicate that selling pressure was substantial during the reported trading period. However, they do not by themselves establish whether the companies’ underlying business prospects have deteriorated.
Why Are AI and Data-Centre Stocks Declining?
One of the key factors behind the weakness was the overnight decline in US technology stocks. Concerns over inflation weighed on growth-oriented shares, particularly companies linked to artificial intelligence and advanced computing.
The Nasdaq Composite fell 511.52 points, or 1.88%, to 26,692.87 on Wednesday. The weakness added to caution in Indian stocks exposed to technology infrastructure investment and expectations of continued AI-related spending.
Investors are increasingly examining whether the pace of investment in data centres, connectivity networks and AI infrastructure can generate sufficient returns to justify elevated valuations. Higher interest rates or bond yields can also put pressure on companies whose valuations depend heavily on future earnings growth.
For Indian telecom and connectivity companies, the long-term opportunity remains linked to rising data consumption, broadband expansion, 5G deployment and demand for high-capacity optical networks. Nevertheless, the timing of capital expenditure, order execution, competition and margins will influence how quickly these opportunities translate into earnings.
Smallcap Index Corrects From September High
The Nifty Smallcap 100 had retreated approximately 5% from its 52-week high of 20,187.80, recorded on September 4, 2026.
Despite the correction, the index remained relatively resilient on a year-to-date basis. It had gained approximately 8.5% during calendar year 2026, according to the figures cited in the original report, while the benchmark index had declined around 12.5% over the same period.
This relative outperformance provides context for the latest selling. Some smallcap stocks had delivered substantial gains, creating the possibility of profit-booking when global sentiment weakened.
Investors should also distinguish between the performance of the overall index and individual constituents. Strong index-level returns can conceal sharp differences in company valuations, earnings quality, debt levels and business execution.
Emmvee Photovoltaic Power Falls 8%
Emmvee Photovoltaic Power also faced heavy selling, with its shares declining around 8% to ₹276 in intraday trade. The stock had corrected approximately 26% from its recent peak, although it remained up about 50% during calendar year 2026, based on the reported figures.
The company manufactures solar photovoltaic modules and TOPCon solar cells. Its long-term prospects are linked to domestic solar installations, manufacturing capacity, technology improvements and the broader expansion of India's renewable-energy sector.
Jefferies, as cited in the original report, identified Emmvee as a potential beneficiary of backward integration into ingots and wafers by FY29. The brokerage projected a 33% compound annual growth rate in EBITDA over FY26–FY29 and maintained a Buy rating with a price target of ₹430.
These are brokerage estimates rather than guaranteed outcomes. Investors should evaluate the assumptions behind projected growth, including capacity expansion, execution, capital expenditure, pricing, competition and the possibility of changes in industry supply-demand conditions.
IDBI Bank Also Sees Sharp Selling
IDBI Bank shares declined as much as 8% to ₹83.60 in intraday trade, following developments concerning its ownership transition.
The Union Cabinet approved the sale of a 60.72% controlling stake to a Fairfax Financial Holdings-backed buyer for ₹52,878 crore, at ₹81 per share, according to the reported transaction details. The Centre and Life Insurance Corporation of India are expected to retain a combined stake of approximately 34%, while the buyer would obtain management control, subject to regulatory approvals and completion of the transaction process.
The deal could provide greater clarity on IDBI Bank's ownership and future management strategy. However, the market reaction may also reflect expectations around the transaction price, the open-offer process and the bank's future growth and profitability.
The ownership change and the sharp intraday decline are separate developments; the share-price movement alone does not determine the transaction's eventual impact on the bank's business.
What Should Investors Monitor?
Investors should focus on whether the recent declines represent short-term profit-booking or a more sustained reassessment of growth expectations. Key factors include quarterly earnings, order-book execution, operating margins, cash flows, debt levels and management guidance.
For AI and data-centre-linked stocks, the crucial question is whether anticipated demand will translate into profitable revenue growth. For renewable-energy manufacturers, capacity utilisation, product pricing and execution will remain important. In every case, valuation needs to be assessed against realistic earnings prospects.
Investors should also watch global technology shares, bond yields and inflation data, as these factors can influence sentiment towards high-growth companies.
Market Outlook
The weakness in smallcap stocks despite a firm benchmark market highlights the uneven nature of the current rally. Sharp declines in Sterlite Technologies, HFCL and MTAR Technologies suggest that stocks with substantial prior gains may be particularly sensitive to changes in global sentiment and valuation expectations.
A recovery would require renewed buying interest supported by company-specific fundamentals, while continued weakness in global technology stocks could prolong volatility. Lower-circuit stocks may also offer limited immediate liquidity for investors seeking to exit positions.
For investors, the priority should be to avoid judging a stock solely by its recent price correction or earlier rally. Sustainable earnings, reasonable valuations, balance-sheet strength and execution will be more important in determining whether these companies can deliver long-term returns.