Top Gainers Today 21-Aug-2026: NSE, BSE movers

Introduction

Indian equities ended largely range-bound on 21 Aug 2026, with the Nifty holding above the 24,200 zone and the Sensex trading almost flat through the session. Market breadth stayed positive, with 2,032 stocks advancing versus 1,572 declining on the NSE, indicating gains were broader even as the benchmarks were muted. Metals and CPSE-energy names dominated the day’s top gainers list, alongside pockets of defence and select smallcaps that saw upper-circuit action. On flows, FIIs were net sellers of Rs 583.36 crore on 20 Aug 2026 while DIIs bought Rs 3,537.71 crore, keeping domestic support in focus.

Large Cap Top Gainers

Hindustan Zinc Ltd (+3.80%) Hindustan Zinc climbed as metal stocks led the sectoral leaderboard during the session, with the Nifty Metal index advancing and zinc-linked counters featuring among key contributors. The move was reinforced by strong participation in the broader metals pack, which kept investors rotated into large-cap metal names. Trading volumes were elevated at 1.50 crore shares, consistent with the sector-led push.

Power Grid Corporation of India Ltd (+2.66%) Power Grid rose after CPSE and energy-linked indices outperformed on the day, keeping investor focus on regulated, high-visibility PSU utilities during a flat benchmark session. The stock also featured among the top Nifty gainers intraday, signalling sustained institutional activity in CPSE names. Volume remained heavy at 1.93 crore shares.

HDFC Life Insurance Company Ltd (+2.46%) HDFC Life gained alongside strength in select financials as the market rotated into defensives while FMCG and auto lagged. The stock’s inclusion among the day’s key index gainers supported incremental buying in large-cap insurers. Volumes at 42.17 lakh shares indicated above-normal activity for the counter.

Hitachi Energy India Ltd (+2.13%) Hitachi Energy India advanced on unusually heavy trading volume highlighted during the session, pointing to strong participation in power equipment plays. Investors typically respond to such volume-led moves as they can indicate fresh positioning in high-beta infrastructure-electrification themes. The stock remains near its recent range, with the day’s action driven more by turnover than a fresh corporate announcement.

Muthoot Finance Ltd (+1.95%) Muthoot Finance moved up as financials held firm in a market that stayed cautious due to rising global bond yields and elevated crude. In such tapes, investors often prefer cash-generative lenders with established franchises, which can support incremental flows. The stock saw steady liquidity with 14.92 lakh shares traded.

Mid Cap Top Gainers

Welspun Corp Ltd (+15.08%) Welspun Corp surged as metals and cyclicals outperformed, with the stock repeatedly showing up among the session’s top movers and gainers. The rally was supported by an aggressive volume build-up of 2.11 crore shares, signalling strong momentum buying. It also traded near its 52-week high of Rs 2,348.30, a level that often draws breakout-oriented flows.

Aegis Logistics Ltd (+6.35%) Aegis Logistics jumped as energy-related names led sectoral gains, supporting mid-cap plays linked to fuel, gas and logistics ecosystems. In a session where crude and yields were in focus, investors concentrated positions in select energy adjacencies that can benefit from sustained throughput and infrastructure themes. Volumes of 15.01 lakh shares suggested active participation.

Authum Investment & Infrastructure Ltd (+4.15%) Authum Investment rose alongside strength in capital market-linked counters, with the Nifty Capital Market index among the day’s better performers. Investors typically buy such names when broader risk appetite improves in the mid and smallcap segment, as reflected in positive breadth. The stock traded with 7.03 lakh shares, supporting the move.

Bharat Dynamics Ltd (+3.79%) Bharat Dynamics gained in line with defence sector strength, with the Nifty India Defence index higher during the session and the stock featuring in intraday gainers lists. Investors generally respond to defence outperformance as it signals sustained sector interest in high-order-visibility themes. Volume stood at 23.05 lakh shares, indicating strong liquidity.

Vedanta Ltd (+3.74%) Vedanta advanced as metal stocks outperformed and the counter saw strong trading activity, also appearing in the session’s high-volume movers list. The market’s preference for metals during the day helped channel incremental buying into diversified commodities plays. Volumes were robust at 2.47 crore shares.

Small Cap Top Gainers

Shanthi Gears Ltd (+20.00%) Shanthi Gears hit the upper circuit after Tube Investments of India increased its stake via a block deal, buying 20.64 lakh shares or about a 2.7% stake. Investors typically react positively to promoter stake increases because it signals confidence and improves the supply-demand balance for the stock. The move came with active trading, with 20.61 lakh shares changing hands.

Quadrant Future Tek Ltd (+20.00%) Quadrant Future Tek locked in a 20% jump as the counter saw unusually heavy volumes, with 80.91 lakh shares traded, pointing to momentum-driven buying. With no specific corporate announcement in the provided news flow, the price action was primarily supported by volume-led demand and upper-circuit dynamics. Such moves often attract short-term traders due to constrained supply on the circuit.

Virat Industries Ltd (+19.99%) Virat Industries surged after the company filed an investor presentation detailing a proposed Rs 95 crore preferential investment to acquire a 70.28% controlling stake in Brahm LifeStyle Products Pvt Ltd, subject to approvals. Investors reacted to the potential acquisition-led change in business scale and control structure, which can alter the company’s growth trajectory. The rally pushed the stock sharply higher even on relatively modest reported volume of 71.98 thousand shares.

Nandan Denim Ltd (+19.82%) Nandan Denim jumped nearly 20% on very high turnover of 88.90 lakh shares, indicating a strong demand spike in the smallcap textile counter. With no specific company announcement in the provided database feed, the move appears driven by technical momentum and liquidity chasing in low-priced stocks. The stock’s price action stood out amid broader smallcap outperformance during the session.

Modi Rubber Ltd (+17.24%) Modi Rubber rose sharply as the stock saw a momentum burst, with the price moving toward its circuit-bound levels during the session. In the absence of a fresh verified company catalyst in the provided news, the move is best explained by technical uptrend activity and thin-liquidity dynamics common in smallcaps. Reported volume was 42.87 thousand shares.

Market Overview

Benchmarks traded with a positive bias but remained largely flat, tracking mixed global cues as Brent crude hovered near USD 94 and US bond yields climbed, both of which typically cap risk appetite. Sector leadership stayed clearly tilted toward cyclicals, with metals and CPSE-energy indices among the top performers, while FMCG and auto names were among the key drags; IT was also muted.

Market breadth was supportive despite the sideways index action, with advancing shares outnumbering declines on the NSE (2,032 advances vs 1,572 declines), and volatility also picked up with India VIX rising more than 3% during the session. The broader market held up better, with smallcaps outperforming midcaps intraday.

On institutional positioning, the latest available data showed FIIs turning net sellers (Rs 583.36 crore) on 20 Aug 2026, while DIIs remained net buyers (Rs 3,537.71 crore). The combination explains why dips were met with domestic support even as global macro headwinds kept the benchmarks in a narrow band.

Explore More Market Movers

Readers can explore the complete list of market movers here:

https://www.multibagg.ai/market-movers/top-gainers