Tata Group Stock Falls 12%, MRPL and CPCL Surged 7% & More
- Share.Market
- 10 min read
- 18 Aug 2026
Here’s a quick wrap-up where we break down the performance of key indices, top corporate movers, and the major economic headlines of the day.
Nifty 50 and Sensex ended sharply lower today. Weakness in IT and realty stocks, along with broad-based selling.
The Rupee depreciated 7 paise to close at 95.68 (provisional) against the US dollar, weighed down by elevated crude oil prices and lingering geopolitical tensions in West Asia.
Gold was at ₹1,54,162 per 10g, while silver was at ₹2,33,722 per kg.
Key Indices – Share Market
Today’s Top News from the Indian Share Market
INDOMIMThe newly listed stock was locked in a 10% upper circuit after it reported robust results. Its net profit increased by 31.64% to ₹240.12 Cr during the June quarter, while cost of materials consumed decreased by 10.89% and finance costs reduced by 41.65%. The company holds a 6.8% global market share in MIM technology, supplying precision-engineered metal components across automotive, aerospace, defence, and medical device sectors.
ONGCThe company said its overseas arm ONGC Videsh (OVL) received the required approval from the US government in July 2026 to resume oil and gas operations in Venezuela. It added that framework agreements for the further course of action in both assets are currently under discussion with relevant stakeholders.
ADVAITAdvait Greenergy, a subsidiary of the company, received a ₹116 crore order from KPI Green Energy Ltd. for a 200 MW solar project in Bikaner, Rajasthan. This order is for a turnkey contract for engineering, procurement and construction (EPC) work for the solar ground-mounted HSAT 33 KV project. The contract includes design, supplies, services, testing and commissioning.
CHENNPETROShares of Chennai Petroleum Corporation (CPCL) and Mangalore Refinery and Petrochemicals (MRPL) surged as much as 7% on Tuesday, August 18, as global refining margins strengthened sharply amid supply disruptions and tighter refined product inventories. The rally came as US refining margins have spiked near $70 a barrel, while European diesel margins have jumped to around $65 a barrel.
NELCOShares of the Tata Group company came under sharp selling pressure on August 18, 2026, after the company announced a $20 million investment in Lunar Holdco, the parent entity of Elveo Mobile. The stock fell as much as 12.45% to ₹946.90, with investors weighing the potential long-term satellite opportunity against the investment’s uncertain returns and execution risks.
Broader Market Performance Today
INDIA VIXTop Performing Sectors Today
*Prices shown may have delay up-to 15 minutes
Today’s Top Gainers and Losers
*Prices shown may have delay up-to 15 minutes
FII DII Activity (₹ Cr)
| Date | FII (Net Value) | DII (Net Value) |
| 17 Aug 2026 | -2,535.10 | 5,101.46 |
| 14 Aug 2026 | 508.12 | 356.40 |
| 13 Aug 2026 | -510.69 | 4,353.09 |
| 12 Aug 2026 | -1,002.50 | 5,841.66 |
| 11 Aug 2026 | 258.55 | 24.77 |
| Month-to-Date | 1,580.83 | 22,154.46 |
What’s Happening Beyond Markets?
- To safeguard its local glass industry, India has enacted a minimum import price for clear float glass, directly benefiting manufacturers like Saint-Gobain. This policy, announced by the Directorate General of Foreign Trade, will restrict imports priced below thirty-four thousand Rupees per tonne and will be in effect for the next year, aiming to enhance domestic production.
- RBI faces challenges forecasting demand for banknotes as currency in circulation continues to grow at double-digit rates despite rising digital payments. Deputy Governor SC Murmu said cash remains widely used, particularly in rural areas, among low-income groups and small businesses.
- A strengthening El Niño could disrupt global supplies of cocoa, coffee and sugar through drought, heat and excessive rainfall. Forecasters see a greater than 90% chance of a very strong event, posing fresh risks to major producing regions.
- In an effort to reign in soaring domestic sugar prices, India is mulling over lowering its sugar import duty. This response is geared toward boosting local supply ahead of the upcoming festival demand spike. Concerns regarding El Niño and subpar monsoon rains have cast shadows over sugarcane harvests. Ex-mill sugar prices in Maharashtra have hit record highs, pushing factories to begin sugarcane crushing ahead of schedule to ramp-up availability.
- India plans its first cargo ship voyage along the Northern Sea Route next year. Russia’s Arkhangelsk region is discussing economic potential and collaboration with New Delhi. Opportunities include shipbuilding and utilizing port facilities for cargo movement. The Northern Sea Route offers significant distance and time savings for European trade. This initiative further strengthens existing connectivity and trade between India and Russia, as per a media report.
Corporate Actions
Ex-Date and Record Date: 20 August 2026
To qualify for a dividend, investors must buy shares before the ex-dividend date. This accommodates the trade settlement period, ensuring that they are officially registered as shareholders by the record date.
| Stock | Event Type | Event Details |
| Kama Holdings Ltd. | Dividend | Interim Dividend, ₹22.25 |
| Marksans Pharma Ltd. | Dividend | Final Dividend, ₹0.90 |
| Mazagon Dock Shipbuilders Ltd. | Dividend | Final Dividend, ₹4.62 |
| Natco Pharma Ltd. | Dividend | Interim Dividend, ₹1.50 |
IPO Corner: Mainboard
Active & Upcoming IPOs
| Company | Date | Total Issue Size | Issue Price | Minimum Investment |
| Lalithaa Jewellery Mart Ltd. | 17 to 19 Aug, 2026 | ₹1,700 Cr | ₹190 to ₹201 | ₹14,060 |
| Horizon Industrial Parks Ltd. | 17 to 19 Aug, 2026 | ₹2,600 Cr | ₹57 to ₹60 | ₹14,250 |
| Sunshine Pictures Ltd. | 18 to 20 Aug, 2026 | ₹282 Cr | ₹342 to ₹360 | ₹14,022 |
| Gaja Alternative Asset Management | 19 to 21 Aug 2026 | ₹550 Cr | ₹152 to ₹160 | ₹14,136 |
Back to Basics
Terms that put you one step ahead – every day
What is Nifty 50 and How is it Calculated?
You track stock performance daily, but what single number tells you whether the broader market is rising or falling? That is where the Nifty 50 comes in; India’s most-watched equity index and the benchmark against which most Indian fund managers measure their performance. Read more.
Before You Go…
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