VanEck’s crypto heat index highlights the first Bitcoin bull call since 2025.

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VanEck's MarketVector Crypto Heat Index has issued a buy signal for crypto for the first time since April 7, 2025. Analysts identify a stabilization in market size, with many components outperforming Bitcoin.

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VanEck's MarketVector Crypto Heat Index has triggered a buy signal for the first time since April 2025, according to Martin Leinweber of MarketVector Index, an asset management giant at VanEck.

The Market Vector Crypto Heat Index is a data-driven “thermometer” for the crypto market, showing when prices are bearish, neutral or overheated. Unlike fear-based sentiment gauges, it uses structural and technical signals and moving averages to trigger strategic buy or sell alerts when the market shifts between these zones.

With a reading of 16.8%, the MarketVector Crypto Heat Index has entered deep ‘undervalued' territory. Leinweber notes that the index's proprietary moving averages have just crossed into bullish territory, which it interprets as a sign of bearish accumulation.

“The breadth is stabilizing. More components than Bitcoin. Signs that capital level sentiment is behind us,” Linweber said today via his official X account.

“For investors still under-allocated to crypto, this may be an opportune time to reassess portfolio exposure rather than reacting to price movements later,” the analyst said.

Matthew Siegel, VanEck's head of digital assets, reissued his analysis, saying his ownership breadth model triggered the first bullish signal for Bitcoin in months.

🚨 🚨 Proprietary* VanEck Breadth Signal Shows First BTC Bull Call Since April 7, 2025, Last Year's Low. pic.twitter.com/dxUz2BlfEP

— Matthew Sigel, CFA in Recovery (@matthew_sigel) January 5, 2026

Van Eyck previously highlighted Bitcoin's potential for a rebound following an underperformance in 2026. Firm analysts have suggested that Bitcoin's four-year cycle suggests a renewed performance this year as liquidity conditions improve.

Bitcoin was changing hands at around $93,700 at press time, up 7.5% over the past seven days, according to CoinGecko. of Digital is broken It passed $91,000 last weekend and extended its rally throughout Tensions are rising between the US and Venezuela on Monday.