Bitcoin's momentum indicator is flashing a signal that should worry bulls

A key momentum indicator that has been accurate at calling price selloffs since October just triggered.

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What to know:

• A key technical indicator for bitcoin, the MACD histogram, just turned negative, signaling a renewed shift toward bearish momentum.
• Since October, every bearish MACD cross has preceded steep bitcoin selloffs, while bullish crosses have produced only short-lived, weak rebounds.
• With the MACD flashing red again despite bitcoin's recent resilience, traders should stay cautious because past patterns suggest another potential price drop.

Bitcoin BTC$68,536.81 bulls should be on their toes: A key momentum indicator that has been disturbingly accurate at flagging selloffs since the largest cryptocurrency hit a record high in October has just triggered.

The indicator is the moving average convergence divergence histogram, better known as the MACD. It's just crossed below zero for the third time, indicating a renewed bearish shift in momentum.

What is MACD anyway?

Before we dive into the market signal, let's see how the MACD works.

The indicator uses two lines. The first is the MACD line, calculated by subtracting the 26-day exponential moving average (EMA) from the 12-day EMA. The gap between the two helps indicate momentum.

The other is the Signal line, which is the nine-day exponential moving average of the MACD line itself.

The really interesting part, though, is the histogram. That plots the difference between the MACD and Signal lines.

When the histogram turns positive, it signals bullish momentum; when it turns negative, as now, it signals bearish momentum. In both cases, the slope's steepness indicates how strong the momentum is.

The indicator is popular because it cuts through market noise to provide a clear picture of trend strength and changes. And right now, it's screaming "bearish."

BTC gets crushed when MACD turns red

Since bitcoin topped out above $126,000 in October, MACD has developed an almost-perfect track record. When it turned bearish, bitcoin crashed hard. When it flipped bullish, there were weak bounces that went nowhere.

The evidence is damning. Bitcoin's weekslong back-and-forth trading above $100,000 came to an abrupt end after the histogram crossed below zero on Nov. 3. Prices plummeted from around $106,000 to $80,000 by Nov. 21.

A brief bounce followed, as the MACD turned positive. But it was short-lived. Just two months later, on Jan. 20, the MACD flashed bearish again with bitcoin around $90,000. The result was the same as before — a face-ripping decline to nearly $60,000 by Feb. 6, once again followed by a minor bounce, backed by a positive MACD with upside capped at around $75,000.

So far, every bullish MACD cross has produced nothing but disappointing bounces that quickly fade, paving the way for deeper selloffs once the indicator turns red. It's a strong signal that sellers are firmly in control, capable of crushing any attempts by the bulls to regain momentum.

And now, the indicator is flashing red again. Sure, past performance doesn't guarantee future results. But when a signal with such a strong track record is flashing red, traders are better off paying heed than throwing caution to the wind. Bitcoin's resilience during the war with Iran may be about to crumble.

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Bitcoin retreats to $68,000, leaving CME gap as traders eye $70,000 rebound

BTC slipped back into February's range after Donald Trump threatened to attack Iran's power plants, sparking a selloff and shifting flows toward commodities.

What to know:

• Bitcoin fell to $68,200 after a weekend selloff tied to the war with Iran, creating a CME gap near $70,000.
• More than $400 million in crypto futures liquidations hit markets, mostly long positions, signaling a sharp unwind in bullish leverage.
• Altcoins lagged behind BTC, but privacy tokens and select assets like BCH and LINK showed signs of relative strength amid mixed sentiment.

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