The Time Code of Bull and Bear Markets: Interpreting the Four-Year Cycle and Market Patterns

In the world of cryptocurrencies, bull and bear markets rise and fall like tides, cycling alternately. The market constantly shifts between frenzy and calm. From the all-time high in 2017 to the deep correction in 2018-2019, and then to the halving cycle in 2024, bull and bear markets follow patterns hidden deep within time. So, how long does this cycle actually last? What secrets are hidden behind their recurring patterns?

Investment Frenzy and Risks: Market Characteristics in the Bull Phase

Each bull market is the ultimate display of market sentiment. When investor confidence is high and prices soar, it seems the market will never turn back. Mainstream cryptocurrencies like Bitcoin and Ethereum become the focus of investors’ attention, with astonishing gains and stories of overnight riches emerging one after another.

2017 was the most疯狂 time of the bull market, with Bitcoin surpassing $20,000, attracting global attention. Investors were extremely excited, and social media was filled with slogans like “To the Moon,” as everyone wanted a piece of the pie. This phase is characterized by: institutional funds having mostly completed their positions, followed by more institutional entry, and retail investors flooding in, driven by extreme FOMO (Fear of Missing Out).

However, every peak of a bull market is also a gathering point for risks. Participants often ignore warning signs at the top, even dismissing warnings as “bearish” signals. This extreme sentiment eventually signals the end of the bull run.

Market Cleansing and Bottom Formation: The Reality of the Bear Phase

Eventually, the bull market ends, replaced by the shadow of a bear market. Prices decline steadily, investor confidence wanes, and the market becomes sluggish. The legends of sudden wealth turn into painful memories, with many losing everything.

From 2018 to 2019, Bitcoin experienced a sharp correction, falling from tens of thousands of dollars to just a few thousand. Investors exclaimed at the market’s ruthlessness. What happens during a bear market? Venture capital decreases, projects shut down, and the market begins to clear out those bubble-like assets. Only projects with real strength and practical use cases survive the winter.

But the bear market also involves the process of finding a bottom. When most investors lose confidence and liquidity dries up, it’s the time for foresighted players to start accumulating. This is the incubation stage of the bull market, where low prices are building energy for the next surge.

The Recurring Pattern of Bull and Bear Markets: Secrets Hidden in Time

Historical data analysis shows that the cycle of bull and bear markets in crypto is not random but follows a relatively fixed time pattern. Generally, the cycle lasts about four years. This is evident from the major peaks in 2013, 2017, and 2021, each roughly four years apart.

Within this four-year cycle, the market goes through different phases:

• Year 1 (Deep Bear): The market remains under the shadow of a bear, with widespread panic and little buying interest.
• Year 2 (Early Bull): Whales and institutions begin to position, gradually restoring confidence.
• Mid Year 2 (Halving Cycle): Bitcoin enters its halving phase, a key catalyst for market movement.
• Years 3-4 (Main Bull Run): Retail investors flock in, pushing market sentiment to extremes.

It’s important to note that bull and bear phases are not symmetrical in duration. Bull markets tend to be shorter, usually around one year; bear markets are often longer, lasting two years or more. This asymmetry reflects market psychology—rapid enthusiasm during rises, slow digestion during declines.

Halving Cycles and Market Turning Points: Developments Since 2024

In April 2024, Bitcoin completed its fourth halving, a crucial event for understanding the current market. Before and after halving, Bitcoin experienced typical price fluctuations—initial dips followed by rises, then entering an accelerated upward phase. This pattern aligns perfectly with historical规律.

Past halving experiences show that halving events are ideal pretexts for whales to push prices up—by creating narratives, they attract significant capital. After mid-2024, with the Federal Reserve shifting towards easing policies, the crypto market has become highly synchronized with the global economic environment. Institutional participation has increased markedly, and market sentiment has shifted from panic at the bottom to optimistic expectations for the future.

By 2025 and into 2026, we can see that the main bull run is indeed unfolding as historical规律 predicted. Bitcoin’s price has surpassed previous targets, and market participation has expanded from institutions to retail investors.

Analyzing Cycles Through Historical Data: The Time规律 of Bull and Bear Cycles

Looking at rare historical statistics, a clear规律 emerges:

2013-2017 cycle: Prices rose from lows to highs, experiencing multiple corrections, culminating in a peak at the end of 2017.

2017-2021 cycle: A deep bear in 2018-2019, followed by gradual recovery. Global economic stimulus in 2020 and the 2021 bull market top.

2021-2025 cycle: Deep correction and bottoming in 2022-2023, with a new cycle starting after the 2024 halving.

Behind this four-year cycle lies another important规律: on average, Bitcoin takes about 33 months to initiate a new bull run. This is not coincidence but reflects the time needed for market sentiment to recover and rebuild confidence.

Within each cycle, the bull phase typically lasts from three months to a year—short-term bursts of about three months, with longer phases extending up to two years. Overall, the main upward surge tends to concentrate within a relatively short window—hence, investors must seize that opportunity.

Rational Strategies for Navigating Bull and Bear Markets

Since the recurring pattern of bull and bear markets is an objective规律, the best approach for investors is to adapt rationally rather than fight the market.

First, recognize that volatility is inevitable. During bull markets, beware of over-investing, as the most疯狂 moments often mark turning points. When retail investors flood in and FOMO reaches its peak, it’s usually a sign that the bull is nearing its end. Whales and institutions will often claim to have bought at the top to attract retail FOMO, then quietly sell off—this is a common market script.

Second, during bear markets, patience is key. Low prices in a bear phase are opportunities for rational investors. Focus on projects with real strength and practical applications, and wait patiently for the next cycle—time will reward your discipline.

Third, enhance risk awareness. Different phases have distinct risk characteristics. The biggest risk in a bull is “chasing highs,” while in a bear, it’s “missed opportunities due to excessive pessimism.” Adjust your strategies dynamically according to the cycle stage.

Finally, believe in the long-term value of blockchain technology. While short-term markets are volatile, fundamentally useful blockchain projects will continue to evolve and improve through cycles. Investing in quality projects and avoiding speculative ones will help you succeed across market fluctuations.

Looking Ahead: Insights from Cycles

The recurring pattern of bull and bear markets is an eternal theme in the crypto space. This规律 will not change based on market participants’ wishes nor disappear due to short-term events. Its existence attracts different types of investors—some seek quick gains during bull runs, others pursue long-term positions during bear phases, while most retail traders experience ups and downs with each cycle.

For those aiming for financial freedom, relying solely on rapid gains in bull markets is unstable. True wealth accumulation comes from understanding cycle规律, grasping market rhythm, and acting at the right time. Rationality and patience are the best tools to navigate these cycles. May every investor witness growth over time and find their place amid the recurring tides of bull and bear markets.