In our previous article, we discussed why Bitcoin is particularly vulnerable to timing mistakes.
Data from the past three years shows that a large portion of Bitcoin's long-term returns may be concentrated in just a few key trading days. The real risk is sometimes not simply experiencing a correction, but being out of the market when a sudden rebound begins.
But today's market presents another risk worth watching:
When one market experiences a sharp sell-off, can capital and leverage transmit that stress into another market?
Tom Lee recently raised an interesting perspective:
The sharp decline in South Korean equities may be affecting the cryptocurrency market through cross-market liquidity pressure.
South Korean stocks plunged today, even triggering a circuit breaker. For Korean retail investors who actively use leverage in the stock market, a rapid decline in share prices can quickly increase margin pressure.
South Korea is also one of the world's most active markets for crypto participation.
If some investors need to raise cash to meet margin requirements in their stock accounts, they may be forced to sell other assets, including cryptocurrencies.
As a result, a problem that initially appears to be confined to the stock market could gradually develop into:
Stocks fall → Margin pressure rises → Cash demand increases → Cross-market asset selling → Crypto comes under pressure.
This also means that short-term volatility in assets such as BTC and ETH may not be entirely driven by developments within the crypto market itself.
Why Could a South Korean Stock Market Crash Affect Crypto?
If the stock market were simply experiencing a normal price correction, its impact on other assets might be relatively limited.
The key factor to watch is:
Leverage.
When investors trade stocks on margin, falling asset prices do not simply create paper losses. They can also trigger additional margin requirements.
In simple terms:
Stock prices fall → Account equity declines → Margin ratios deteriorate → Investors need additional cash.
If investors do not have enough cash available, they may sell other assets to raise liquidity.
At that point, investors do not necessarily sell the assets they are most bearish on.
They may sell the assets that are:
Easiest to sell, most liquid, and fastest to convert into cash.
Crypto happens to fit these characteristics, with 24/7 trading, global liquidity, and high tradability.
Therefore, when a stock market suddenly experiences widespread margin pressure, crypto assets can become a source of liquidity across markets.
This is what can be described as a cross-market liquidity shock.
Why Are Korean Retail Investors Particularly Important?
South Korea has long been one of the world's important markets for cryptocurrency participation.
Korean investors are active not only in traditional equities but also in cryptocurrency trading.
Therefore, when the South Korean stock market experiences extreme volatility, it is not enough to look only at the KOSPI or KOSDAQ.
Another question needs to be considered:
What happens to the other assets held by these investors?
If an investor holds:
- Korean stocks
- BTC
- ETH
- Stablecoins
- Other crypto assets
then a margin shortfall in their stock account may not necessarily be solved within the stock market alone.
To raise cash, they may sell other assets.
This creates a potential cross-market transmission chain:
South Korean stocks plunge
↓
Margin pressure on stock accounts increases
↓
Investors need additional liquidity
↓
Other liquid assets are sold
↓
Additional selling pressure hits BTC, ETH and other crypto assets
↓
Short-term volatility in crypto increases
Therefore, today's decline in crypto cannot necessarily be interpreted simply as a sudden deterioration in crypto market fundamentals.
Why Could ETH Become a Target for Cross-Market Selling?
In this situation, ETH is particularly worth watching.
The reason may not necessarily be that investors have suddenly become bearish on Ethereum.
It may simply be because:
ETH is highly liquid and relatively easy to sell.
When investors urgently need cash, the ability to convert an asset into cash can become more important than its long-term fundamentals.
This is a phenomenon that often occurs during liquidity shocks in financial markets:
Even good assets can be sold.
The purpose of the sale is not necessarily to express a bearish view. It may simply be raising cash.
Therefore, if the South Korean stock market is experiencing a wave of forced liquidations, additional short-term selling pressure on BTC and ETH does not necessarily mean that the long-term trend of the crypto market has fundamentally changed.
This is an important distinction when interpreting the current market:
A price decline does not necessarily mean deteriorating fundamentals.
Sometimes, price initially reflects liquidity pressure.
How Does This Connect to Bitcoin's “Timing Risk”?
If we place today's market within the framework of our previous article, an interesting contrast emerges.
The previous article focused on:
Investors leave the market because they fear further declines, only to miss key upward moves.
Today's discussion focuses on:
A liquidity crisis in one market suddenly affects another market.
These may appear to be completely different situations, but the underlying principle is similar:
Markets do not always follow the path investors expect.
When markets enter periods of extreme volatility, correlations between asset classes can suddenly increase.
Markets that initially appear relatively independent:
Stocks → Crypto
can become rapidly connected through leverage, margin requirements, and liquidity demand.
Therefore, when evaluating Bitcoin's short-term price movements, looking at Bitcoin alone may not be enough.
Sometimes, the factor driving BTC prices may actually originate in another market.
A Short-Term Liquidity Shock Does Not Necessarily Mean a Trend Reversal
Tom Lee views the current situation more as a short-term liquidity-driven dislocation.
This perspective is worth watching.
If the current selling pressure is primarily caused by forced liquidation in the South Korean stock market, it has one important characteristic:
The selling pressure may be concentrated without necessarily being persistent.
Suppose the market goes through:
Stock market crash → Margin calls → Forced selling → Liquidation wave ends
As the number of investors forced to sell their assets declines, the additional selling pressure may naturally begin to fade.
This is not necessarily the same as a prolonged decline driven by deteriorating fundamentals.
Of course, this does not mean the market will immediately rebound.
Once the liquidity shock ends, the market still needs to establish a new balance between supply and demand.
Therefore, the more important questions are:
Is margin pressure in the South Korean stock market beginning to ease, and is the crypto market starting to absorb additional selling pressure?
KTX Crypto Market Watch: Focus on “Why It Is Falling,” Not Just “How Much It Has Fallen”
For KTX Crypto, the most important question today is not simply how much BTC or ETH has fallen.
It is:
What is driving the decline?
If the decline is primarily related to margin pressure caused by the South Korean stock market sell-off, several indicators deserve close attention:
South Korean stocks → Margin pressure → Cross-market capital flows → BTC/ETH price structure → Trading volume → Futures open interest → Liquidations
In particular, watch for:
- Whether the South Korean stock market continues to experience large-scale selling;
- Whether margin calls and forced liquidations continue to increase;
- Whether spot selling pressure on BTC and ETH is accelerating;
- Whether crypto trading volume is expanding abnormally;
- Whether futures open interest is falling rapidly;
- Whether new buyers appear after large-scale liquidations subside.
If the market eventually shows:
Lower liquidation pressure in Korea → Reduced selling pressure in crypto → BTC/ETH begin to stabilize
then today's decline may be better understood as a short-term liquidity shock.
Users can monitor BTC/USDT market prices, 24-hour price changes, trading volume and order-book data through the KTX BTC/USDT Spot Trading Page.
For more information about KTX's other markets and trading products, visit the KTX Official Website.
FAQ
Why Could a South Korean Stock Market Crash Affect Crypto?
Korean investors may hold both stocks and crypto assets.
When a stock market crash creates margin pressure, some investors may sell crypto assets to raise cash, creating additional selling pressure across markets.
What Is a Cross-Market Liquidity Shock?
Simply put, it occurs when financial stress in one market causes investors to sell assets in another market to raise cash, transmitting liquidity pressure across markets.
Why Could Crypto Become an Asset That Investors Sell?
Crypto assets are highly liquid and can be traded continuously in global markets.
When investors urgently need cash, highly liquid assets may be easier to sell.
Does a Decline in ETH Mean Investors Have Suddenly Become Bearish on Ethereum?
Not necessarily.
If the selling pressure is primarily caused by investors needing to meet margin requirements in their stock accounts, ETH selling may be driven more by liquidity needs than by a change in long-term views on Ethereum.
Will Crypto Automatically Rebound Once the Korean Liquidation Wave Ends?
Not necessarily.
The end of a liquidation wave may simply mean that part of the additional selling pressure has disappeared. The market will still need to establish a new balance between buyers and sellers.
One factor alone cannot determine the future direction of prices.
How Can We Tell Whether This Is a Short-Term Liquidity Shock?
Several factors can be monitored:
Whether pressure in the stock market is easing, whether crypto trading volumes are returning to normal, whether forced liquidations are declining, and whether new buyers are appearing in BTC and ETH.
If these indicators improve together, it could suggest that the market is gradually absorbing the previous liquidity shock.
Conclusion
Today's market once again reminds us:
Cryptocurrency does not operate in complete isolation from other financial markets.
When the South Korean stock market experiences a sharp decline, margin pressure in stock accounts may force some investors to sell other assets, transmitting that pressure to BTC, ETH and other crypto assets.
This means that a decline in crypto prices does not always originate from deteriorating fundamentals within the crypto market itself.
Sometimes, it may simply be:
A liquidity crisis in another financial market looking for assets that can be converted into cash.
That is why the key question at this stage should not simply be:
“Why is Bitcoin falling?”
We should also ask:
“Who is selling?”
And:
“Why do they have to sell?”
If the current selling pressure is primarily caused by margin calls in the South Korean stock market, additional selling pressure may gradually fade as the liquidation wave comes to an end.
However, if pressure on the stock market continues to intensify and triggers broader cross-market deleveraging, short-term volatility in crypto could increase further.
Therefore, the most important question right now is not simply whether the bull market is over or still intact.
It is about distinguishing between:
A fundamental trend change and a short-term liquidity-driven sell-off.
For Bitcoin, some of the most dangerous moments may not be caused by changes in Bitcoin itself, but by liquidity beginning to flow across different markets.
Original Source
Tom Lee recently raised an interesting perspective: the sharp decline in the South Korean stock market may be spilling over into crypto through cross-market liquidity pressure.
South Korean stocks plunged today, even triggering a circuit breaker, putting significant margin pressure on Korean retail investors who are accustomed to using leverage.
South Koreans are also among the world's major crypto asset holders, with approximately one in five people holding a crypto asset account.
To fill the gap in their stock accounts and avoid forced liquidation, retail investors may be forced to sell crypto assets across markets to “put out the fire,” with ETH being one of the assets affected.
He believes this is a short-term liquidity-driven dislocation. Once the current liquidation wave in Korea passes, the selling pressure should naturally begin to fade.
Original Author: TechFlow深潮｜APP已上线
X Account: @TechFlowPost
Publication Date: October 13, 2026
Original Post: https://x.com/TechFlowPost/status/2109826318812738019
Risk Disclaimer
Cryptocurrency markets are highly volatile. The prices of digital assets such as BTC and ETH can be affected by macroeconomic conditions, monetary policy, market liquidity, cross-market capital flows, leverage levels and investor sentiment, among other factors.
This article is provided for informational and educational purposes only and does not constitute financial, investment or trading advice. Cross-market capital flows and margin data may be delayed or subject to limitations. The market transmission mechanisms discussed in this article do not represent predictions of future price movements.
Whether a short-term liquidity shock develops into a broader trend risk requires consideration of additional market data.
Before using futures or other leveraged products, users should fully understand margin requirements, funding rates, forced liquidation mechanisms and liquidation risks.