Explainer: Tata Motors Shares Slumped 40% on Demerger Day

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Tata Motors plunges 40% after demerger. Shareholders to get one share each in TMPV and TMLCV. Long-term outlook mixed, volatility ahead.

By S JHA

Mumbai, October 14, 2025 — Tata Motors Ltd. shares fell nearly 40% today, after the long-anticipated demerger of its commercial vehicle business finally became effective. But market watchers warn that the steep fall is largely technical — not necessarily a signal to hit the panic button.

What happened

October 14 was declared the record date: shareholders of Tata Motors as of this date are entitled to one share of Tata Motors Passenger Vehicles (TMPV) and one share of Tata Motors Commercial Vehicles (TMLCV).
As part of the restructuring, the stock began trading “ex-commercial vehicle business”, meaning the share price of the remaining entity reflects only the passenger vehicle (and associated) operations.
The passenger vehicle unit listed with an opening price near ₹400 on the stock exchanges, down from the consolidated price of ~₹660 prior to the adjustment.
Meanwhile, the commercial vehicle arm (TMLCV) is expected to begin trading later, possibly in November, after regulatory approvals and exchange listing procedures.

Why the drop is not as dire as it seems

Technical reallocation, not value erosion
The ~40% price fall stems from the subtraction of the commercial vehicle business’s value from the listed price. The value is being redistributed across two entities, not destroyed.
Near-term volatility expected
Analysts have flagged “technical risk” and uncertainty as markets recalibrate valuations for both businesses.
Strategic clarity & value unlocking
The split allows the passenger / JLR / EV business (TMPV) to focus on growth, innovation, and premium branding, while the commercial vehicle arm (TMLCV) can concentrate on steady demand, execution, and infrastructure cycles. Investors can now choose their exposure.

Financial & Technical Outlook

Broker projections post-split
Nomura has split its price targets nearly equally between TMPV and TMLCV: ~₹367 for TMPV and ~₹365 for TMLCV. Some valuation reports have placed the commercial vehicle business at ~₹260.75 per share when derived from the price adjustment.
Growth assumptions
- TMPV (Passenger / EV / JLR): Analysts expect 8–10% growth in H2 FY26, margin improvement, and tailwinds from festive demand, EV momentum, and JLR recovery.
- TMLCV (Commercial Vehicles / Trucks & Buses / Logistics): Targeting ~5% revenue CAGR, with a margin goal near 7.5% by 2028, supported by infrastructure push and the Iveco acquisition.
Technical movement
The stock had already been sliding ~7% over the previous seven sessions prior to the demerger, as uncertainty mounted. Today’s sharp drop also reflects new derivative contracts, rebalancing, and liquidity adjustments.

What investors should watch / do

Don’t jump to conclusions — The post-split structure means the old share price is no longer comparable.
Hold for both entities — Eligible shareholders will own matching amounts in TMPV and TMLCV post listing.
Monitor JLR / EV performance — The TMPV arm’s upside hinges heavily on JLR comeback and EV demand.
Watch listing of TMLCV — Once trading begins, market will immediately test demand for the CV business.
Expect volatility — Until market discovers equilibrium, both stocks may swing sharply.

In sum, Tata Motors’ ~40% drop today is a structural adjustment, not a fundamental collapse. While risks abound, especially in the near term, the demerger gives clarity, sharper focus, and the possibility of unlocked value. Investors with conviction in India’s auto & infrastructure story may see this as a long-term opportunity — but only if they’re patient and cautious in navigating the volatility.

(Disclaimer: This article makes no recommendation for buy or sell of shares of any company)