Highlights
- KRN Heat Exchanger shares declined over 1% during active NSE trading session.
- Stock remains higher by nearly 57% on a year-to-date basis.
- Trading volumes crossed 5 lakh shares amid elevated market volatility.
Shares of KRN Heat Exchanger and Refrigeration Limited (NSE:KRN) traded lower on May 15, 2026, despite maintaining significant gains on a year-to-date basis. The stock was quoted at ₹ 1,175.00, down 0.73% from the previous close of ₹ 1,183.60 on the NSE.
During the trading session, the stock opened at ₹ 1,200.00 and touched an intraday high of ₹ 1,246.80 before slipping to a low of ₹ 1,145.20. The counter witnessed active trading activity with traded volume reaching 5.81 lakh shares and traded value standing at ₹ 69.68 Cr.

Source: Trading View
Volatility And Price Movement Stay In Focus
The stock continued witnessing sharp price swings during the session. KRN Heat Exchanger reported annualised volatility of 60.75%, reflecting heightened movement in the counter over recent months.
The stock remains below its 52-week high of ₹ 1,405.00 recorded on April 28, 2026. However, it continues trading significantly above its 52-week low of ₹ 589.80 touched in January 2026.
The NSE data also showed the stock under ASM-1 surveillance measures. Stocks placed under the Additional Surveillance Measure framework are generally monitored for unusual price volatility and trading activity.
Business Operations Linked To HVAC And Refrigeration Industry
KRN Heat Exchanger and Refrigeration manufactures fin and tube-type heat exchangers used in the heating, ventilation, air conditioning, and refrigeration industry.
The company operates in segments connected to cooling systems and industrial heat transfer applications, which remain linked to infrastructure, commercial cooling, and industrial equipment demand.
Delivery Percentage Reflects Active Trading
The stock reported deliverable quantity at 34.51% of traded quantity during the session, indicating active market participation alongside intraday trading activity.
The applicable margin rate remained at 100%, while the stock traded within its 20% price band range. NSE data showed the upper band at ₹ 1,420.30 and lower band at ₹ 946.90 for the session.
Market Returns
KRN Heat Exchanger continued to outperform broader market benchmarks across several periods despite the latest decline. The stock delivered year-to-date returns of 56.93%, compared with a decline of 4.87% in the NIFTY Total Market index during the same period.
On a one-year basis, the stock gained 44.54%, while the benchmark index remained nearly flat. However, short-term performance remained under pressure, with the stock declining 10.22% during the past week.

Source: NSE
Key Risks Investors Should Track
- High annualised volatility may lead to sharp short-term price fluctuations.
- ASM surveillance status may influence trading activity and liquidity.
- Cooling industry demand slowdown could affect order visibility.
- Broader market weakness may impact mid-cap industrial stocks.
Summary
KRN Heat Exchanger (NSE:KRN) shares traded lower on May 15, 2026 despite maintaining strong year-to-date gains. The stock declined 1.38% during volatile trading activity and remained under ASM-1 surveillance.
Investors continued monitoring price swings, trading volumes, and broader industrial sector sentiment. The company operates in the HVAC and refrigeration segment manufacturing fin and tube-type heat exchangers for industrial applications.
FAQs
Q: Why did KRN Heat Exchanger shares decline on May 15, 2026?
A: The stock traded lower amid volatile market activity despite maintaining strong year-to-date gains.
Q: What are KRN Heat Exchanger’s year-to-date returns?
A: The stock gained 56.93% year-to-date, outperforming the broader NIFTY Total Market index.
Q: What business does KRN Heat Exchanger operate in?
A: The company manufactures fin and tube-type heat exchangers for HVAC and refrigeration industry applications.