Bitcoin fell to $80,154 on Thursday as a sharp decline in South Korean equities added to pressure across risk-sensitive markets. The cryptocurrency’s move came after the KOSPI Composite Index dropped 7.5%, extending its losses for the week to 15.5% and leaving the benchmark at its lowest daily close since April 8, according to Cointelegraph.
The sell-off was concentrated in technology stocks, including two of South Korea’s largest listed companies. SK Hynix fell 11%, while Samsung Electronics ended the session 9.5% lower. Bitcoin’s intraday low was its weakest level in more than three weeks, with the price last reaching that area on Sept. 20.
South Korean stocks deepen the pressure on Bitcoin
The KOSPI finished Thursday at 5,554 points. Its 200-day moving average fell as low as 5,450, a level not seen since late July. A moving average is a commonly followed measure of an asset’s average price over a set period, and traders often use it to assess the broader direction of a market.
The latest decline followed earlier losses in the week and reflected a broader retreat from South Korean technology shares. The source material cited concerns about the debt obligations associated with artificial-intelligence investment, outflows of foreign capital and competition from China as factors contributing to the market rout.
The connection between the stock-market decline and Bitcoin reflects the way investors can treat both assets as part of the wider pool of risk-sensitive investments. When market confidence weakens, losses in equities can coincide with selling in digital assets, although the two markets remain separate and can move for different reasons.
Mirae Asset Securities analyst Kim Seok-hwan told local publication The Korea Herald that global macroeconomic pressures could continue to weigh on South Korean markets. He said volatility was likely to persist in the near term because deteriorating domestic supply-and-demand conditions had made the market more sensitive to external risks. He also said a near-term improvement in the global environment appeared unlikely.
Results from the technology sector could provide another test for investor sentiment. SK Hynix is scheduled to report third-quarter earnings on Oct. 28, followed by Samsung Electronics on Oct. 29. The source material said weaker-than-expected figures could add to volatility in technology shares. Samsung is expected to report third-quarter sales of 195 trillion won, or $145 billion, and operating profit of about 107 trillion won, or $80 billion.
Inflation and oil markets add to the uncertainty
Bitcoin was also dealing with pressure from a stronger-than-expected US inflation reading released on Wednesday. September’s Consumer Price Index rose 3.7% from a year earlier. The figure prompted a more hawkish shift in expectations about the possibility of additional Federal Reserve interest-rate increases.
Higher interest rates can affect financial markets by raising the relative appeal of cash and interest-bearing assets while increasing financing costs. The market question highlighted by trading firm QCP Capital was whether the inflation surprise would lead to further rate increases or whether credit stress could instead encourage a change in policy expectations.
Oil prices moved lower despite fresh tension around the Strait of Hormuz. A Singapore-registered oil tanker sank there on Wednesday, an incident described as “unjustifiable” by Singapore’s Maritime and Port Authority. The Strait is an important route for oil shipments, so disruption in the area can raise concerns about supply and prices.
However, the source material said those concerns did not produce a rise in crude prices on Thursday. WTI traded below $95 a barrel and was down 0.5%, while Brent crude fell 2.2% to $103.7 a barrel. Firas Bechwaty, head of business development at online trading platform ICM, said he saw little chance that Hormuz transit volumes would quickly return to levels recorded before the US-Iran war began. He also pointed to Saudi crude reaching buyers through alternative routes and emergency stock releases by members of the International Energy Agency as buffers against a sharp price increase.
Moneyiar market picture
Moneyiar data at 21:18 on Oct. 15, 2026, showed Bitcoin at $82,080.48, up 0.45% over 24 hours and 0.45% over seven days. The data indicates that Bitcoin had recovered from the $80,154 low reported earlier in the day, although it remained close to the levels highlighted in the market report.
Among the other assets tracked by Moneyiar, Tagger was at $0.0005601607, down 1.78% in 24 hours and 12.93% over seven days. Ontology stood at $0.0531310611, down 2.81% over 24 hours and 11.71% over seven days. Capricorn was listed at $0.131504117, down 2.15% over 24 hours but up 0.59% over seven days; its latest Moneyiar timestamp was Oct. 6, 2026, at 14:14.
Together, the day’s developments left investors monitoring several sources of risk at once: the sharp fall in South Korean technology shares, US inflation and interest-rate expectations, and shifting conditions in oil markets.
