BTC fell to $81,000 again today. For the third time.
Meanwhile, South Koreans are witnessing the year's tenth stock market circuit breaker.
And it all started with an inflation report last night.
At 11:30 a.m. Beijing time on October 15, the Korea Exchange simultaneously triggered circuit breakers on the KOSPI and KOSDAQ, suspending trading for 20 minutes. This was the tenth circuit breaker this year. The KOSPI plunged nearly 8%, SK Hynix fell more than 11%, and Samsung Electronics dropped over 9%.
U.S. stocks last night: The Nasdaq fell 1.88%, its biggest one-day loss since July 23. The Philadelphia Semiconductor Index fell for a sixth straight session, CoreWeave dropped over 15%, and Nvidia fell more than 3%.
On October 9, 12, and 15, BTC fell back to around $81,000 three times, repeatedly testing the same support zone.
Three events, one fuse.
Where’s the fuse?
On the evening of October 14, the US released its September CPI data: headline inflation was 3.7% year over year, above the 3.6% forecast; core CPI rose 0.3% month over month, above the expected 0.2%. Energy prices climbed 5.2%, airfares are up 22.4% so far this year, and prices for entertainment, used cars, education, and healthcare all rose.
After the data came out, the probability of a rate hike in October surged from 21.6% beforehand to 43.7%—more than double. Traders even started betting that the Fed would raise rates three more times by the end of 2027.
Inflation isn’t dead. Rate hikes aren’t over.
Why was South Korea the first to fall?
South Korea’s economy is export-oriented and heavily reliant on semiconductors, making it doubly sensitive to global interest rates and tech demand. When markets turn risk-averse, capital is among the first to leave markets like this, with their “high beta and high external demand.” The KOSPI had already fallen for several consecutive days, down about 21% in total.
South Korea is the canary in the global risk-appetite coal mine. Its being the first to choke suggests there’s already no oxygen left in the mine.
Analyst Murphy points out that realized losses declined across the three tests of $81,000. Losses on October 12 were lower than on October 9; on October 15, they were slightly higher than on the 12th, but still below the 9th.
October 9 marked the peak in short-term holders exiting en masse. When the market retested support a second time, sentiment was cautious and selling pressure was muted. The third drop came amid negative macro catalysts, forcing some wavering holders to stop out.
More precisely, this isn’t a wholesale panic sell-off. It’s a gradual shakeout of “weak hands.”
But there’s one warning: short-term holders currently account for only about 31% of losses, below the historical average of 42.7%. The shakeout may not be over yet.
Next, watch whether realized losses continue to contract. If the price holds at current support, the gradual decline in loss realization means fewer forced sellers, and this corrective phase may be nearing its end. If realized losses expand again, the market may need a more thorough shakeout.
South Korea’s trading halt, the Nasdaq’s plunge, and BTC testing its lows.
These three events are no coincidence.
They’re three sparks from the same fuse.
That fuse is called “rate-hike expectations.”
Inflation at 3.7%, the odds of a rate hike doubling, and global capital retreating from risk assets. BTC’s decline in this chain of events isn’t unjustified—it’s like South Korean semiconductor stocks and US tech stocks: all are among the first casualties when liquidity tightens.
Whether $81,000 holds doesn’t depend on BTC alone. It depends on October’s CPI and the next FOMC meeting.
Until then, manage your position size and set a stop-loss.