- Bitcoin May average return: +7.78% historically.
- 2026 May currently sits at +2.63%.
- Bear market Mays: -15.6% in 2022, -18.99% in 2018.
- August median return across all years: -7.49%.
- September average return: -3.08% across all cycles.
- Weak May years consistently bled into Q3.
May Has Two Personalities, And 2026 Is Showing the Wrong One
Looking at Coinglass data since 2013, May has historically averaged a 7.78% return. However, this number isn’t very helpful by itself. It combines exceptionally good Mays (like 2019 and 2017 with gains over 50%) with significantly negative Mays (like 2022 and 2021). This average makes May seem better than it often is, so it’s more important to look at the range of returns rather than just the average.
Historically, May stock market performance falls into two patterns. Strong Mays – those with gains of 10% or more – happen during established bull markets, like in 2017, 2019, 2024, and 2025. Weaker Mays, or months with negative returns, occur when the overall economic picture is already weakening, as seen in 2018, 2021, and 2022. This year’s gain of 2.63% doesn’t fit the pattern of those strong May years. In fact, historically, a May gain of less than 3% has never been followed by a strong third quarter.
The distribution is the number the average buries.
What Bear Market Mays Actually Led To
Bitcoin experienced significant declines in both 2022 and 2018. In 2022, May saw a loss of 15.6%, followed by a larger drop of 37.28% in June, leading to a more than 50% decrease in value by the end of the third quarter. A similar pattern occurred in 2018, with May down 18.99% and June falling another 14.62%. After that, the price stabilized briefly before continuing to fall throughout the rest of the year.
2021 provides a limited comparison. In May of that year, the market fell sharply by 35.31%, a larger drop than in either 2018 or 2022. While June saw a small recovery (-5.95%), the third quarter included a strong July with an 18.19% increase, followed by a decline in September (-7.03%). Some argue that 2021 shows a bad May can be followed by a recovery in the third quarter. However, the May 2021 decline was a sudden crash, leaving the market clear on its position. In contrast, a more moderate May increase of +2.63% is less clear and potentially more concerning.
Ambiguity does not resolve bullishly in Q3. It resolves in the direction of the larger trend.
The Median Tells What the Average Hides About Q3
Focus on the middle value (median) instead of the average. Looking at past data, the median return for August was -7.49%. While September’s average was -3.08%, the median was -3.12%. These aren’t just isolated bad months caused by a single terrible year; they consistently show negative returns over many different market cycles, both during good times and bad.
Historically, August and September have often seen declines following any gains made in the second quarter, especially during bear markets. For example, in 2022, after a significant drop in June, the market continued to fall in August (-8.6%) and September (-3.12%). A similar pattern occurred in 2018: a strong rally in July (+20.96%) was followed by losses of -9.27% in August and -5.58% in September, demonstrating that initial gains can sometimes be misleading ‘traps’.
The second quarter often brings a temporary boost after a period of decline, especially when broader economic conditions are stable or selling slows down. This positive effect is usually reflected in prices by July. However, August and September typically force a reassessment of the fundamental issues, which haven’t improved during bear markets.
Why 2026 Is Not 2022, And Why That May Not Matter
If current market trends follow past patterns of decline, we could see a negative outcome for the third quarter. However, that’s not certain. We saw significant drops in January and February of 2026 – 10.17% and 14.94% respectively – the worst back-to-back losses since the market downturn in 2022. Fortunately, March saw a recovery with a 1.81% gain, and April jumped up 11.87%. That April increase was the biggest we’ve seen in any year that wasn’t a peak growth period, hinting that demand bounced back quickly.
April’s strong 11.87% increase suggests a potential shift in the market, not just a temporary recovery. If that’s the case, May’s smaller 2.63% gain simply means the market is stabilizing, not weakening. Looking back at 2023, a similar pattern occurred – a strong first quarter followed by gains in April, ultimately leading to a significant overall increase by October. The way the market moves is more important than the specific month.
In early 2023, the market showed signs of building positive momentum and increasing interest from exchange-traded funds. However, 2026 began May after experiencing two months of significant declines, and there’s currently no clear reason to expect a turnaround like we saw in 2023.
The May Close That Changes the Q3 Seasonal Verdict
As of May 3rd, Bitcoin is currently valued at $78,450. It’s trading slightly above key moving averages – $78,240 for the 50-day average, and around $77,316 to $77,365 for the 100 and 200-day averages. With 28 days left in the month, the current 2.63% increase isn’t enough to determine a clear trend.
If Bitcoin finishes May above $82,500, it would result in a roughly 7.8% monthly gain, which is typical for this cryptocurrency. This would also suggest a shift from a downward trend to an upward one, and make a previous bearish pattern less likely to continue into the third quarter.
As an analyst, I’m watching Bitcoin closely, and a key signal would be if it closes May at or below $78,000. That would suggest the month will finish flat or in the red. If that happens, historically we’d expect a weaker performance in 2026, and the most probable direction for the market in August and September would be downward, with median drops around 7.5% and average declines of about 3%.
As a researcher, I’ve been tracking market trends, and I’ve noticed a consistent pattern. Even though May is only three days old, seasonal effects don’t seem to be influenced by a strong or weak start to the month. Historically, whenever May closes on a down note, it consistently leads to the same results in the third quarter.
This article is for informational purposes only and shouldn’t be considered financial, investment, or trading advice. Coindoo.com doesn’t recommend any particular investment or cryptocurrency. Always do your own research and talk to a qualified financial advisor before investing.
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2026-05-03 12:19