The patterns of bull and bear markets: How the four-year cycle influences cryptocurrency trends

In the cryptocurrency market, the “bull market and bear market cycle” is the most fundamental market law. This kind of cyclical movement does not occur arbitrarily; it is formed by a structural pattern driven together by multiple market factors. Understanding the internal logic of this cycle is crucial for investors to set long-term strategies.

Historical Proof: A Clear Four-Year Cycle

Data statistics show that Bitcoin’s bull market and bear market cycle is about one round every four years. Looking back at past market performance, this rule has been verified in 2013, 2017, and 2021.

2017 was the most notable point in this cycle. Bitcoin’s price had set an all-time high of more than $20,000, drawing attention from investors around the world. At that time, social media was full of optimistic investment sentiment, and retail investors rushed in. However, during the bear market of 2018 to 2019 that followed, the price underwent a major adjustment; market prices fell back to more reasonable levels, and many projects lacking fundamental support were also weeded out during this period.

Behind this cyclical rule is a reflection of the repeated game of psychological expectations among market participants.

The Up-and-Down Cycle Driven by Market Psychology

A typical feature of the bull market phase is high market sentiment and strong confidence. In this phase, investors’ risk appetite rises, and new projects become more attractive, with capital flowing into the market continuously. This leads to coin prices climbing step by step, creating round after round of profit stories.

In contrast, the bear market phase is a reversal of market sentiment. Investors’ confidence is shaken, risk appetite declines, and capital gradually withdraws. The former myth of massive profits turns into tangible loss records, and the market begins to “clean up”—projects that have no real application scenarios and technical support gradually exit the stage.

The transition of this psychological cycle often takes 1–2 years, while a complete bull-and-bear cycle usually takes 3–4 years to run its full course.

How the Halving Event Changes the Pace of the Bull-Bear Cycle

Bitcoin’s halving cycle overlapping with the bull-and-bear market cycle is an important phenomenon. Based on historical observations, the previous two halving events were both accompanied by performances where Bitcoin’s price surged by more than 10x.

Looking at the halving event in 2024, the impact of this mechanism on the market remains significant. As a clear point in time, halving often becomes an important reference for market participants. Before and after the halving, the market typically goes through volatility—first adjustment, and then an upswing. The logic behind this pattern is the interaction between reduced supply and market psychological expectations.

According to historical rules, the cryptocurrency market on average needs about 33 months to kick off a new bull market cycle. By benchmarking this cycle theory, market participants can better understand where they are currently positioned within the cycle.

Market Evolution in 2024–2026

Starting from the deep adjustment period in 2023, market participants gradually built positions amid sustained panic. In 2024, the market entered the early stage of a new cycle, and institutional capital began to accelerate its deployment. With the halving event taking effect, Bitcoin and other major digital currencies began to show upward momentum.

As of the current time in March 2026, the market has entered the mid-stage of this bull market cycle. In this phase, investors should watch three key signals: retail participation, institutional moves, and on-chain activity.

Investment Strategies for Rationally Responding to Bull-Bear Cycles

Understanding the rules of bull-bear cycles is most important for applying it to investment strategy. During a bull market cycle, investors need to stay alert and avoid chasing rallies blindly when the market is at high levels. At this time, profit-taking targets should be set to prevent getting trapped at high prices.

During a bear market cycle, a calm mindset is even more critical. A bear market is actually a period for accumulating quality assets. Investors should examine a project’s fundamentals, choose projects that have real application value and technical accumulation, and prepare for the next bull market.

In addition, regardless of which stage of the bull-bear cycle you are in, diversification and risk control are necessary principles. Do not put all your capital into a single asset; instead, make a reasonable asset allocation based on your own risk tolerance.

At the same time, it is also important to pay attention to the policy environment and the global economic situation. Market liquidity, regulatory policies, and the macroeconomic backdrop will all have a substantive impact on bull-bear cycles.

Core Takeaways for Grasping Cycle Rules

Bull-bear cycles are an eternal theme in the digital currency market. By tracking historical data, observing market signals, and understanding key factors such as the halving mechanism, investors can better locate where they stand within the current cycle.

In this market full of variables, time and patience are important assets. Real gains often come from making the right decisions at the right time, and that requires a deep understanding of market cycles. May every investor be able to move forward steadily through the recurring bull-bear cycle by means of rational analysis.