Bitcoin (BTC) declined to $80,154 on Thursday, marking its lowest level in over three weeks as cryptocurrency markets tracked significant losses in South Korean equities. The drop coincided with the Korea Composite Stock Price Index (KOSPI) closing 7.5% lower for the day, bringing its week-to-date decline to 15.5%. This performance represented the index's lowest daily close since April 8, ending at 5,554 points, while its 200-day moving average fell to 5,450 points, a level not seen since late July.
The sell-off heavily impacted major technology firms, with SK Hynix shares dropping 11% and Samsung Electronics falling 9.5%. Market analysts attributed the volatility to concerns regarding AI debt obligations, foreign capital outflows, and intensifying competition from China. Mirae Asset Securities analyst Kim Seok-hwan noted that deteriorating domestic supply-demand conditions have made the market more sensitive to external risks, warning that global macro headwinds would likely persist.
Downward pressure on Bitcoin was further exacerbated by higher-than-expected US inflation data released Wednesday. The September Consumer Price Index (CPI) rose 3.7% year-on-year, prompting traders to reassess Federal Reserve interest rate expectations. While high oil prices contributed to the CPI uptick, crude futures fell on Thursday despite geopolitical tensions in the Middle East, including the sinking of a Singapore-registered tanker in the Strait of Hormuz. WTI traded below $95 per barrel, and Brent settled at $103.7 per barrel.
The correlation between Bitcoin’s price action and the KOSPI’s sharp decline highlights the persistent sensitivity of crypto assets to broader risk sentiment, particularly within Asian tech-heavy markets. As institutional investors rebalance portfolios amid fears of AI-related debt burdens and competitive pressures from China, digital assets are increasingly treated as high-beta instruments rather than safe havens. This dynamic suggests that short-term crypto valuations remain tethered to traditional equity performance, especially when liquidity conditions tighten globally.
Looking ahead, the upcoming third-quarter earnings reports from Samsung and SK Hynix serve as critical catalysts for market stability. If these tech giants miss revenue or profit projections, the resulting downside could trigger further capital flight from both equities and cryptocurrencies. Additionally, the hawkish shift in Federal Reserve expectations following elevated US inflation data introduces another layer of macroeconomic friction, potentially prolonging volatility across asset classes until clearer signals emerge regarding monetary policy recalibration.
