Whalesbook
Economic Contraction in Q4 2025
South Korea's economy unexpectedly contracted by 0.3% in the fourth quarter of 2025 (October-December), according to preliminary estimates from the Bank of Korea. This marks the sharpest quarterly downturn in three years and the weakest performance since late 2022. The contraction missed market expectations for modest expansion. For the full year 2025, the economy expanded by 1.0%, which is the slowest annual growth rate recorded since 2020. On a year-on-year basis, Q4 GDP grew by 1.5%, a slowdown from the previous quarter.
Waning Growth Drivers and Persistent Challenges
The Q4 downturn was primarily driven by a broad pullback in domestic demand and a decline in investments. Private consumption saw a significant deceleration, growing by only 0.3% in the quarter, a sharp decrease from the 1.3% rise in the prior period. Government spending showed limited growth at 0.6%, indicating the waning impact of fiscal stimulus measures. Investment activity weakened considerably, with facility investment falling by 1.8% and construction investment contracting by 3.9%. Exports also declined by 2.1% in Q4, while imports fell by 1.7%, contributing negatively to growth. It is notable that for the first time in 22 years, both domestic demand and net exports had negative growth contributions in the same quarter.
The housing market continues to be a significant challenge, with apartment prices in Seoul extending gains for the 50th consecutive week as of mid-January 2026. Seoul apartment prices saw an 8.71% increase in 2025, the steepest annual rise in 19 years, defying government cooling efforts. This persistent price appreciation complicates policy decisions, as authorities remain cautious about easing regulations due to concerns over escalating household debt and financial instability. The South Korean won also experienced weakness, with forecasts suggesting continued pressure in 2026. The country's external balance remained strong, however, with a current-account surplus of approximately $118 billion in 2025, projected to reach $135 billion in 2026.
The economic recovery exhibits an uneven pattern, often described as 'K-shaped'. Export-oriented sectors, particularly semiconductors, continue to outperform, while construction and interest-rate-sensitive consumers face difficulties regaining momentum. This trend raises concerns about underlying structural imbalances within the economy.
KOSPI Reaches Historic 5,000-Point Milestone
Amidst the economic slowdown, South Korea's stock market has experienced a remarkable surge. The benchmark KOSPI index broke the 5,000-point barrier for the first time on January 22, 2026, marking a historic achievement. This milestone follows a substantial 76% gain in 2025 and an ongoing winning streak in early 2026, with individual investors reportedly leading the current rally. The robust performance is largely attributed to strong gains in key sectors, particularly semiconductors, with companies like Samsung Electronics and SK Hynix hitting record highs. This surge signifies a dramatic turnaround for the Korean stock market, with analysts suggesting further potential upside.