Korean stock investors drove heat wave-related stocks higher from last month 29th to the 5th as the Korea Meteorological Administration issued consecutive heat wave warnings. Cooling appliance manufacturers Paseco and Winix surged 23.1% and 29.2% respectively during the period, outpacing the KOSPI's 16.5% and KOSDAQ's 20.7% gains. The rallies reflected expectations that record-breaking temperatures would boost sales of air conditioners and fans. Market interest quickly spread to air filter companies and electrical equipment firms, though gains varied widely across sectors including cosmetics and ice cream stocks.
Cooling Appliance Stocks Lead Heat Wave Rally
Paseco rose 23.1% and Winix climbed 29.2% from last month 29th to the 5th, according to Korea Exchange data. Both companies exceeded the broader market's performance during the same period. The gains came as temperatures exceeded 40 degrees Celsius, driving expectations for increased sales of air conditioners and fans.
Air Filter Manufacturer Clean & Science Gains on Replacement Demand Expectations
Clean & Science, an air conditioner filter manufacturer, advanced 17.6% during the same period. Securities firms noted that increased cooling appliance sales could translate into filter replacement demand. Air conditioners have long replacement cycles, but filters require regular replacement as consumable items, supporting sustained demand expectations.
Electrical Equipment Stocks Surge on AI Data Center and Power Demand Overlap
LS ELECTRIC jumped 29.4%, HD Hyundai Electric rose 31.7%, and Iljin Electric gained 25.6% from last month 29th to the 5th. The electrical equipment sector had already been experiencing "super cycle" expectations based on artificial intelligence data center expansion and aging power grid replacement demand, with the heat wave providing additional momentum. Ham Hyung-do, researcher at Shinhan Investment Securities, stated that the combination of data center demand expansion and heat wave-driven power demand increases could result in power shortages and sharp electricity price increases. Hana Securities Research Center Global Investment Analysis Office analyzed that expectations for increased consumption of cooling appliances like air conditioners and fans, as well as ice cream and beverages, could serve as upward momentum for related stocks.
Cosmetics and Ice Cream Stocks Show Limited Gains
APR rose 10.0% and Cosmax gained 5.6% during the same period. Cosmetics stocks received expectations for increased demand for sunscreen and functional cosmetics due to the heat wave, but their price increases remained limited compared to cooling and electrical equipment-related stocks. Ice cream and beverage stocks, traditionally considered summer beneficiary stocks, showed even more modest reactions. Binggrae rose only 0.6%, while Lotte Wellfood fell 0.7% and Hite Jinro declined 1.9%.
Analysts Caution on Seasonal Theme Chasing Amid Mixed Financial Performance
Market observers noted caution is needed regarding追 chase buying of heat wave themes, as related stocks have repeatedly experienced short-term surges on heat wave expectations followed by rapid declines alongside weak earnings. Paseco recorded a net loss of 2.8 billion won in Q1, expanding its deficit from the previous year. Winix reduced its net loss from 44.4 billion won in Q1 last year to 18.3 billion won in Q1 this year, but continued to post losses.
FAQ
Which Korean stocks gained the most during the heat wave from last month 29th to the 5th?
HD Hyundai Electric rose 31.7%, Winix climbed 29.2%, LS ELECTRIC jumped 29.4%, Iljin Electric gained 25.6%, and Paseco advanced 23.1% during the period from last month 29th to the 5th, according to Korea Exchange data.
Why did electrical equipment stocks surge during the Korean heat wave?
Electrical equipment stocks gained on expectations that AI data center expansion and heat wave-driven power demand increases could combine to create power shortages and electricity price increases, according to Ham Hyung-do, researcher at Shinhan Investment Securities. LS ELECTRIC, HD Hyundai Electric, and Iljin Electric had already been experiencing "super cycle" expectations based on data center and power grid replacement demand.
