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Bitcoin Fisher Transform Signals Fourth Historic Bullish Cross

By Markets Desk · 2026-09-20 · 2 min read
A smooth, undulating line graph rising from a low point against a dark background
Illustration: Tradingbird

A rare technical crossover has appeared on Bitcoin's monthly chart, marking the fourth instance in history where this specific indicator signaled a bear market bottom.

The Fisher Transform indicator printed its fourth bullish crossover in Bitcoin's history. This event occurred on the monthly time frame in July. Analyst Willy Woo highlighted the signal in a recent post. The crossing happened at a value of -2.26. Historical data shows this pattern has preceded major uptrends three times previously.

Historical accuracy of the signal

Woo notes that the prior three instances resulted in confirmed cycle bottoms. There were no false positives in those cases. The current cross is the fourth on record. The indicator smooths price action to identify trend strength. It uses a log-based transform to correct for extreme values. This method helps filter out market noise.

The reliability of this signal is higher at market lows. Speculative traders are less active during these phases. This absence of short-term momentum traders leads to cleaner reversals. Price movements are more decisive when few participants are present. This structural difference makes bottom signals more distinct than top signals.

Weekly chart divergence emerging

The weekly chart shows a developing bullish structure. The indicator hit a swing low of -2.85 in December. Bitcoin traded near $90,000 at that time. Since then, the indicator has formed higher lows. Price has formed lower lows. This divergence suggests underlying strength despite surface weakness.

A similar pattern appeared in 2022. That divergence accompanied the final six months of the previous bear market. The current weekly data mirrors that historical setup. The alignment of these metrics points to a potential shift in market dynamics. Traders are watching for confirmation of this trend.

Market sentiment and accumulation

Bitcoin hit a 21-month low near $57,000 in July. Doubts persist about whether this marked a true cycle bottom. On-chain metrics have triggered conflicting signals recently. Woo observed limited buyer interest at these lows. Bid-side activity showed only a few large investors accumulating. This lack of broad participation remains a key observation.

Cointelegraph reported on these metric readings. The data suggests a cautious approach from the market. While the technical signal is strong, price action has not yet confirmed a reversal. Investors await further clarity on the direction of the asset. The next few weeks will determine if the historical pattern holds.

Based on reporting by Cointelegraph, compiled by the Tradingbird desk.

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