Bitcoin (BTC) is showing a strong rebound, complicating market calculations surrounding its short-term direction. With the price swinging sharply from the $71,000 range to the $79,000 range within a single day, the key questions have become whether the rally will continue and how long the buying interest that flowed in during the surge will be sustained.

■ Market at a Glance: Up 6.65% in 24 Hours

As of the 21st, Bitcoin was trading at $77,007.31 on the Binance spot market. Compared to its 24-hour opening price of $72,203.90, this represents a gain of approximately 6.65%. Over the same period, it recorded a high of $79,500 and a low of $71,132.

The defining feature of this movement is that it is difficult to assess the market by the rate of increase alone. The price gap between the low and high exceeded $8,000, with strong upward momentum and high volatility appearing simultaneously. Whether trading volume supports the sharp price recovery and how much selling pressure near the highs is absorbed will be the factors that determine the short-term trend.

■ Variables That Will Determine the Next Direction ① U.S. Interest Rates and the Dollar

The U.S. financial market environment could act as a variable in Bitcoin's next move. If U.S. Treasury yields rise again, the burden on risk assets could grow. Conversely, if the rise in yields subsides and the dollar weakens, a relatively favorable environment for investment sentiment in the cryptocurrency market could take shape.

② New York Stock Market Volatility

The New York stock market, which has recently seen increased volatility, is also one of the indicators for gauging Bitcoin's risk-on trend.

③ Spot Buying Intensity

Spot market buying intensity also needs to be examined. When prices surge, leveraged trades such as futures can amplify the rise, but for the strength to persist, it is important that actual spot demand is sustained as well. Whether trading volume holds up even near the highs and whether sell orders are steadily absorbed during pullbacks are measures of the market's underlying strength.

④ Derivatives Overheating

The possibility of overheating in the derivatives market is also hard to overlook. When prices rise sharply in a short period, open interest can increase or positions in a particular direction can accumulate excessively. In such cases, small price changes can trigger large-scale liquidations, amplifying volatility in either direction—up or down.

■ "The Quality of Supply and Demand Matters More Than the Price Itself"

Ultimately, for Bitcoin to turn this rebound into a new upward trend, the quality of supply and demand will likely matter more than the price itself. The first things to confirm are whether the buying interest that pushed the price up to the $79,000 range returns, and whether the market can absorb profit-taking volumes following the surge. U.S. Treasury yields and dollar movements, risk appetite in the New York stock market, spot buying, and leverage levels in the derivatives market are all variables moving in tandem.

With price volatility having widened significantly in a single day, rather than determining direction based on specific price levels alone, it is necessary to also examine trading volume and changes in market structure.

[Cryptocurrency is a high-risk asset with extreme price volatility. Investment decisions should not be made based solely on a specific coin or market outlook, and investment decisions and responsibilities rest with the investor. This article was written with AI assistance.]