"Sell in May and go away" is one of Wall Street's oldest clichés. But does it hold up for the most volatile asset on the planet? While retail traders are glued to Fed statements and Elon Musk tweets, the real signal has been hiding in plain sight on the chart — the 50-day and 200-day moving averages.
Here's a full 10-year audit of what Bitcoin (BTC) actually did every May, framed by where price sat relative to those two lines.
What Are MA50 and MA200 — and Why Do They Matter?
If you've been buying crypto on gut feeling, here's the quick version:
- MA50 (50-day moving average) — reflects the average closing price over the last 50 days. When price is above it, short-to-medium-term sentiment is bullish.
- MA200 (200-day moving average) — the long-term trend line. Bitcoin trading below MA200 is the clearest signal that a crypto winter has arrived.
Two crossover events define the market cycle:
- Golden Cross — MA50 crosses above MA200. Historically, this precedes strong bull runs.
- Death Cross — MA50 drops below MA200. Buckle up.
The 10-Year May Chronicle: Bitcoin 2016–2025
2016 — Calm Before the Storm
Position: Above both MAs | Price ~$450
Pre-halving consolidation. BTC held above MA50 and MA200 all month, confirming the uptrend. May closed up roughly +18%, laying the groundwork for 2017's legendary run.
2017 — Pure Euphoria
Position: Well above both MAs | Price ~$1,350
The bull market was already in full swing. When BTC trades well above both moving averages with no pullback, you get parabolic momentum. May 2017 alone delivered +60%, closing above $2,200.
2018 — Death Cross in Action
Position: Above MA50, below MA200 | Price ~$9,000
Post-ATH hangover. The local bounce to $9K looked promising — until it wasn't. BTC failed to reclaim MA200, rolled over, and May closed down -18%. A textbook bear market confirmation.
2019 — Back From the Dead
Position: Testing MA50, below MA200 | Price ~$5,300
One of the most instructive Mays on the cryptocurrency list with price history. BTC broke above MA200 mid-month and didn't look back — closing the month near $8,500, a +60% gain in 31 days.
2020 — COVID Shock + Halving
Position: Testing both MAs from below | Price ~$8,600
After the March crash to $3,800, Bitcoin was rebuilding. The third halving hit in May. BTC cleared both moving averages and closed up +9% — a quiet but decisive move that opened the road to $64K.
2021 — Bloodbath
Position: Above MA200, broke below MA50 | Price ~$57,000
Fresh off a new all-time high in April ($64,800), May turned brutal. Elon Musk pulled Tesla's BTC payment option; China announced a mining ban. BTC sliced through MA50, then MA200, finishing the month down -35% — one of the worst monthly closes in its history.
2022 — Bear Trap
Position: Below both MAs | Price ~$38,000
When you start May below MA50 and MA200, the altcoin season index tends to roll over too. The Terra/LUNA collapse mid-month accelerated the slide. BTC ended at $31,000, down -15%, deep into crypto winter.
2023 — Grinding Sideways
Position: Above MA200, hugging MA50 | Price ~$28,000
Recovery mode, but barely. BTC drifted lower through MA50 with shrinking volume. Closed the month down -7%. No drama — just exhaustion.
2024 — Optimist's Trap
Position: Above MA200, below MA50 | Price ~$60,600
The ETF approval and April halving had already pushed BTC to a new ATH of $73,700 in March. May was a grinding range-bound month — caught between MA200 support and MA50 resistance. It ended with a modest +11% bounce but no decisive breakout.
2025 — Institutional Stability
Position: Above both MAs
The market entered May in a stabilization phase at elevated levels. Holding above MA200 prevented any serious breakdown. The month posted moderate gains — institutional positioning appears to be absorbing volatility that would have wrecked retail traders in earlier cycles.
The Pattern Is Clear
| Year | MA Position | May Result |
|---|---|---|
| 2016 | Above both | +18% |
| 2017 | Above both | +60% |
| 2018 | Below MA200 | -18% |
| 2019 | Broke above MA200 | +60% |
| 2020 | Cleared both | +9% |
| 2021 | Broke below MA50 | -35% |
| 2022 | Below both | -15% |
| 2023 | Below MA50 | -7% |
| 2024 | Below MA50 | +11% |
| 2025 | Above both | Moderate gain |
Takeaway
"Sell in May" is not a Bitcoin rule — it's a context-dependent signal. The real question isn't what month it is. It's where price sits relative to MA50 and MA200 on May 1st. That single data point has been a more reliable guide than any cryptocurrency news articles, macro narratives, or influencer takes. Check the moving averages before you make a move.
Originally published on buysellstyle.com
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