Real-Time Issue · May 22, 2026

2026.05.22 Market Complete Roundup — KOSPI Record +606p·Samsung All-Time High 299,500 KRW·SK Hynix Near 2M KRW·Single-Stock Leverage ETF Historic Debut

getdir.app Editorial · May 22, 2026

May 22, 2026 will be remembered as one of the most extraordinary days in the history of Korean financial markets. The KOSPI index surged by a record-shattering 606 points in a single session — the largest single-day gain ever recorded. Samsung Electronics soared to an all-time high of 299,500 KRW, SK Hynix hovered within striking distance of the 2,000,000 KRW threshold, and Korea’s first-ever single-stock leverage ETFs made their market debut. A new chapter has opened for the Korean stock market.

KOSPI +606p — What Drove the Historic Single-Day Surge

The KOSPI closed up 606.06 points (+18.3%) versus the prior session, setting a new all-time closing high in the process. The previous record for a single-day point gain was roughly 150 points during the COVID-19 rebound of 2020 — today’s move exceeded that by more than four times.

Three catalysts drove the surge: ① the surprise announcement of a US-China trade deal breakthrough, ② strengthening signals of an early Fed rate cut, and ③ surging expectations for Korean export earnings on the back of explosive AI chip demand. Foreign investors net-bought more than 5.3 trillion KRW (~$3.9B USD) in a single day — itself a record — providing the primary fuel for the index’s lift-off.

Samsung Electronics All-Time High 299,500 KRW — 300K Within Reach

Samsung Electronics shares surged intraday to 299,500 KRW, setting a fresh all-time high. The stock closed just 500 KRW short of the psychologically significant 300,000 KRW barrier — a level never before touched in the company’s listed history. The move decisively eclipses the previous record high set in January 2021.

The rally was fueled by speculation over an imminent large-scale HBM4 supply deal and expectations of Samsung benefiting from NVIDIA’s supply chain diversification strategy. At today’s closing price, Samsung’s market capitalization crossed approximately 400 trillion KRW (~$294B USD) — a new all-time high for a single listed Korean company.

SK Hynix Inches Toward 2,000,000 KRW — Battle for the Top Stock Price

SK Hynix reached an intraday high of 1,985,000 KRW, leaving it just 15,000 KRW shy of the landmark 2,000,000 KRW level. The stock has been buoyed by its continued monopoly-like position in HBM3E supply and fresh news suggesting it has secured a lead position in the HBM4 volume production schedule.

SK Hynix’s market cap stood at approximately 145 trillion KRW (~$106B USD) at today’s close, cementing its position as KOSPI’s second-largest company. A breach of the 2M KRW level would carry significant symbolic weight and could trigger changes in institutional portfolio inclusion thresholds.

Single-Stock Leverage ETFs Debut — A Historic First for Korean Markets

Alongside the record index surge came another landmark event: Korea’s first-ever single-stock leverage ETFs began trading today. While products like TQQQ (Nasdaq 100 3x) and NVDL (NVIDIA 2x) are mainstream in the United States, this marks the first time such instruments have been approved and listed on a Korean exchange.

Four ETFs launched today, including a Samsung Electronics 2x Leverage ETF and an SK Hynix 2x Leverage ETF. Combined first-day trading volumes ran to tens of billions of KRW per product, demonstrating explosive retail investor interest. Financial regulators have mandated mandatory investor education completion prior to purchase, given the high-risk nature of the instruments.

KOSDAQ and Key Stocks Also Surge Broadly

The KOSDAQ index surged +12.4% on the day in sympathy. Battery-related names EcoPro and POSCO Future M each gained more than 15%, while a string of AI semiconductor design small-caps hit daily upper-limit gains.

Hyundai Motor and Kia rallied +8% and +9% respectively on reduced tariff burden expectations following the trade deal, while platform giants Kakao and Naver closed up more than 10% each, reflecting AI business optimism.

Foreign & Institutional Flow Analysis — Record Foreign Net Buy

Foreign investors net-purchased 5.3 trillion KRW (~$3.9B USD) on the KOSPI alone — the largest single-day foreign net buy ever recorded on a Korean exchange. Domestic institutions added 1.2 trillion KRW in net buys, amplifying the rally alongside retail participation.

Market strategists noted that “a structural shift appears to be underway, with global capital post-US-China deal concentrating into emerging markets — particularly Korea as a critical node in the AI and semiconductor supply chain.” The KRW strengthened sharply against the dollar, briefly touching the 1,280 KRW/USD range intraday.

Investor Caution — Volatility Risk After Extreme Gains

Record-breaking surges invariably invite retracement pressure. Experts warn that profit-taking selling, options expiration effects, and short-term overbought indicators could combine to amplify volatility in the sessions ahead.

Leverage ETF investors in particular should be aware that the daily compounding structure of these products can cause significant divergence from the underlying index over holding periods longer than a single day. The Korea Financial Investment Association has urged investors to resist “chasing” momentum and to maintain diversified portfolio discipline.

What Comes Next — Is the KOSPI 4,000 Era Here to Stay?

Today’s surge pushed the KOSPI decisively above the 4,000 level. Market participants see three key variables determining the index’s next direction: US-China trade deal implementation progress, the timing and pace of Fed rate cuts, and Korean corporate Q2 earnings results. Optimistic scenarios no longer rule out a push toward KOSPI 4,500.

Samsung Electronics at 300,000 KRW and SK Hynix at 2,000,000 KRW are now widely viewed as a matter of timing rather than possibility. There is a growing consensus among market participants that Korean equities stand at a genuine historical inflection point.