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In stock trading, the most easily overlooked yet most practical technical tool for beginners is the KDJ line. As a classic indicator in technical analysis, it helps traders quickly identify trend reversal points and optimal entry opportunities. Many retail investors have successfully avoided multiple market traps by mastering the core usage of the KDJ line. So, what exactly is the magic of this indicator, and how can we flexibly apply it in real trading?
The essence of the KDJ line: the market logic behind the three lines
The core function of the KDJ line (Stochastic Indicator) is to tell you the current market condition using data language.
On the indicator chart, you will see three lines: the K line (fast line), D line (slow line), and J line (sensitive line). The K and D lines are used to determine whether the market is overbought or oversold, while the J line reflects the degree of divergence between the K and D lines. When these three lines intertwine, it often signals that a new trading opportunity is about to emerge.

Why Did the Nikkei 225 Reach a 33-Year High?
By the end of June 2025, the Nikkei 225 index rose to 40,487 points, hitting a new high not seen in 33 years. What investment opportunities are hidden behind this surge?
The core logic of this rally can be summarized in two aspects. First is valuation recovery — in April, global tariff fears triggered a stock market crash, and Japan’s price-to-earnings ratio (P/E) fell to 12 times, well below international market levels. As pessimistic expectations gradually dissipated, institutional investors began to reassess the intrinsic value of Japanese companies, and the P/E ratio slowly rose to around 13 times, becoming the main driver of this rebound.
Secondly, asset allocation shifted. Against the backdrop of “reducing holdings of US stocks” becoming a market consensus, overseas funds are seeking undervalued markets. The Japanese stock market, being relatively cheap, has become an important target, attracting a large influx of international capital. More importantly, the corporate governance reforms promoted by the Tokyo Stock Exchange are beginning to take effect — more and more

What is forced liquidation? A quick guide in 1 minute
Forced liquidation (also known as Stop Out Level) refers to the action taken by a broker to automatically close some or all open positions when a trader's margin level falls to a certain critical point. Simply put, when your losses reach a certain level, the broker will automatically close your positions to prevent further losses.
This mechanism is designed to protect investors, but its execution can often be harsh — usually closing the most severely losing positions first, leaving profitable ones intact. If all positions are in loss, then everything is liquidated.
Key concept: How is the margin level calculated?
The margin level determines how close you are to forced liquidation. The calculation formula is as follows:
Margin Level = (Account Equity ÷ Used Margin) × 100%
Specific example:
- Account balance: $1,000
- Buy 1 mini

The Federal Reserve meeting minutes show that officials are increasingly concerned about the current inflation risks and believe that room for rate cuts is limited. They noted that the entrenched nature of inflation may not be solvable through easing policies and that signals of not relaxing price stability need to be communicated cautiously. Future policies will prioritize ensuring inflation expectations remain stable rather than arbitrarily cutting rates.

Moving averages occupy a central position in technical analysis, but many traders still have misconceptions about their underlying logic and practical application. This article will start from an in-depth analysis of the moving average mechanism to help you develop a more systematic trading mindset.
The Essence and Calculation Logic of Moving Averages
The Moving Average (MA), abbreviated as the mean line, is based on the core principle of summing the closing prices over a specific period and dividing by the number of days to obtain an arithmetic average. The formula is: N-day MA = Sum of closing prices over N days / N
For example, a 5-day MA is the average of the closing prices over the past five consecutive days. As time progresses, each time a new data point is added, a new average is recalculated. Connecting these consecutive averages with a line results in the moving average chart we see.
The essence of the moving average is to smooth out historical price data using the moving average method, helping traders filter out short-term noise and identify medium- to long-term price trends. It

Short-term investing is a high-frequency trading strategy that is typically completed within a few days, with risks and opportunities coexisting. The article explores the nature, opportunities, trading systems, asset selection, and psychological factors of short-term investing, emphasizing the importance of technical analysis in rapidly changing markets, and mentioning that risk management and mental adjustment are key to success.

Key Reminder - Starting March 9, 2025, the United States will observe daylight saving time. Regular trading hours will be from 21:30 Beijing Time to 4:00 the next day. The NYSE Arca fully electronic exchange plans to extend trading hours to 22 hours per trading day (pending regulatory approval).
Detailed Explanation of U.S. Stock Market Opening Hours and Trading Rules
The U.S. stock market consists of multiple exchanges, including the New York Stock Exchange, NASDAQ, and the American Securities Exchange. Each exchange operates independently but maintains largely synchronized trading hours. Investors need to understand that U.S. stock trading is divided into three time periods, each with specific rules.
U.S. Stock Trading Time System (Eastern Time)
Regular Trading Hours: Monday to Friday 9:30-16:00
This is the core trading period, during which the vast majority of stocks and indices are traded. Liquidity is at its highest, and price fluctuations tend to be more rational.
Pre-market Trading Hours: Monday to Friday 4:00-9:30

Short-term stock trading tests not long-term vision but the keen sense of market rhythm. An order may be completed within minutes or held for several days—that's the charm and risk of short-term trading. Many traders fail due to emotions but succeed through strategy. This article will guide you to a deep understanding of the core elements of short-term stock trading, from timing identification to comprehensive risk control.
The essence of short-term stock trading: speed and rhythm
Short-term trading refers to market transactions with holding periods ranging from a few days to several weeks. Unlike long-term investing, short-term traders do not focus on a company's fundamentals or long-term growth potential but instead follow the hot trading of stocks driven by major capital, aiming to profit from volatility.
This trading model has a key indicator: win rate. Short-term traders must calmly analyze profit probabilities, and many experienced traders use backtesting software to validate their short-term strategies.
Risks of short-term stock trading

The cryptocurrency market has reignited investor enthusiasm following Bitcoin's impressive performance, which recently surged to $126.08K, marking fresh all-time highs. This upward movement has catalyzed broader market participation, with altcoins and meme coins particularly attracting attention.

Market in a Bullish Rally
Monday's rally was particularly fierce. The three major US stock indices all soared: the Nasdaq jumped 2.69%, the S&P 500 rose 1.55%, and the Dow also increased by 1.44%. Even the crypto market was active, with Bitcoin reaching $87,670 (up 0.22%) and Ethereum at $2,950 (down 0.34%). Gold also broke through the $4,100 mark, currently trading at $4,134.7 per ounce.
The VIX index, which represents fear and panic, plummeted by 12.4%, indicating a clear easing of market anxiety. Investors' appetite has instantly grown.
Three Major Positive Events Ignite Market Confidence
This rally didn't come out of nowhere. Trump's signing of the "Genesis Plan" provided a strong boost to market confidence. This plan aims to integrate the US's supercomputers and unique data assets, using artificial intelligence to accelerate scientific discoveries. The Department of Energy has been asked to establish an AI experimental platform.

What exactly are candlestick charts?
Candlestick charts, commonly known as K-lines or candle charts, are the most fundamental and important tools in technical analysis. In simple terms, a candlestick chart condenses four key price points within a day—opening price, closing price, highest price, and lowest price—into a single chart, visually presenting price trends and market sentiment through different colors and shapes.
For traders, understanding candlestick charts is equivalent to mastering the language of the market. Each candlestick tells a story: how the bulls and bears are competing during this period and who ultimately gains the upper hand.
Components of a K-line
A complete K-line consists of two parts:
The body of the candlestick is the central rectangular part, representing the price range between the opening and closing prices. When the closing price is higher than the opening price, the body is red, called a bullish (yang) candle; conversely, if the closing price is lower, it is green, called a bearish (yin) candle. The length of the body reflects the strength of the bulls and bears during that period.
The shadow is the thin line extending above and below the body.

The Bank of Japan remains on hold, and the yen exchange rate falls below the 157 level
The Bank of Japan has proceeded with its rate hike as scheduled, raising the benchmark interest rate to 0.75%, the highest in nearly thirty years. However, market expectations were disappointed—Governor Ueda Shintaro did not reveal the timetable for the next rate hike, and the hawkish signals were clearly insufficient.
As a result, risk appetite sentiment instantly reversed, and the yen experienced a sell-off. The USD/JPY exchange rate broke through the 157 level, rising by 1.05% to reach a recent high. This wave of yen depreciation not only impacts the forex market but also foreshadows subsequent trends in the Sanhe market.
US stock futures rise, Oracle leads the tech sector rally
Before the market open on December 19, the three major stock index futures all advanced. Among them, Dow futures rose 0.14%, S&P 500 futures increased 0.33%, and Nasdaq 100 futures gained 0.43%, reflecting strong sentiment in the tech stocks.
Oracle (ORCL) performed remarkably, with the stock price

Optimistic about AI long positions, why are analysts not afraid of family holdings reduction?
Electronic manufacturing giant Foxconn Technology Group (2317) has recently become a market focus, but the attention is not on negative news; instead, it is on the change in holdings by family members. The investment company represented by former Chairman Terry Gou's daughter, Guo Xiaoling, has filed a report with the Taiwan Stock Exchange, indicating plans to sell 5,180 lots of Foxconn shares through ordinary transactions from December 4 to January 3 next year. Based on the closing price of NT$222 at that time, the total amount is approximately NT$1.15 billion.
At first glance, the reduction in holdings by family members might trigger market speculation. However, several analysts have poured cold water on this, pointing out that this move is merely a normal adjustment in personal financial planning by the family and has nothing to do with the company's operational prospects. Why are they so confident? The reason is simple—5,180 lots account for a negligible proportion of Foxconn's average daily trading volume of over 100,000 lots, and Terry Gou himself still holds about 1.74 million lots. This disposal is essentially a drop in the bucket. More importantly, the division

The third Friday of March, June, September, and December each year is known as "Quadruple Witching Day" in the US stock market, caused by the concentrated settlement of four major derivative financial products, which can trigger market volatility. On these days, futures prices converge with spot prices, and market makers may manipulate stock prices for settlement. Short-term traders should be cautious in responding to fluctuations and consider strategies for oversold rebounds and overbought pullbacks. The Quadruple Witching Days in 2024 are March 15, June 21, September 20, and December 20. Investment advice is to提前转仓 or close positions early to manage risk.

Why is it important to understand the currency symbols of different countries?
In international trading and foreign exchange investments, correctly identifying each country's currency symbol is crucial. Currency symbols serve as a visual shorthand, helping traders quickly recognize the currency identity of different countries and regions. When you see the € symbol on a quote table, you instantly think of euro-related currency pairs like EUR/USD or EUR/JPY; seeing £ immediately indicates involvement with the British pound.
Compared to lengthy textual descriptions, using symbols can significantly improve reading efficiency. For example, $40 is more concise and clear than "40 US dollars," which is especially important in high-frequency trading and data analysis. For investors, familiarizing oneself with global currency symbols is equivalent to mastering the "language code" of international finance.
Quick Reference Table of Major Global Economy Currency Symbols
The main trading currencies and their corresponding symbols in different continents are as follows:
Americas: US Dollar (USD, $), Canada Dollar (CAD, $), etc.

Moving Average (SMA) is an important trend analysis tool in technical analysis. By smoothing asset price fluctuations, it helps traders identify the direction of the trend. The calculation method of the SMA line is simple, based on the average of closing prices over a specific period. SMA lines of different periods are suitable for different trading strategies, and traders can buy or sell based on the interaction between price and moving averages. However, the limitations of the SMA line include lag and false signals, so it is recommended to combine it with other indicators such as RSI and MACD to improve trading success rates.

In cryptocurrency and stock trading, RSI (Relative Strength Index) is one of the most commonly used technical analysis tools by investors. However, many people only know how to look at overbought and oversold zones, neglecting the most powerful signal—divergence. This is precisely why many traders suffer losses. This article will delve into the RSI divergence phenomenon, teach you how to identify genuine reversal opportunities, and how to address the issue of weakening signals.
What is RSI? A quick understanding of the Relative Strength Index
RSI (Relative Strength Indicator) is an indicator that measures the comparison of buying and selling forces in the recent market. It generates a value between 0 and 100 by comparing the magnitude of recent gains and losses.
Core calculation logic:
- Select a time period (usually 14 days)
- Calculate the average upward movement ÷ average downward movement = Relative Strength (RS)
- RSI =