According to @rovercrc, Bitcoin’s 4-year cycle suggests the current BTC bull market may be nearing its end, with the decisive window unfolding in the coming weeks, source: @rovercrc on X, Oct 19, 2025.

According to Michaël van de Poppe (@CryptoMichNL), he is not worried a bear market has started and argues this crypto cycle is structurally different, citing that Uptober turned lower and altcoins did not break out in sync with prior cycles, source: Michaël van de Poppe (@CryptoMichNL) on X, Oct 15, 2025. He states Bitcoin BTC printed a new all-time high before the halving, which he says invalidates the traditional four-year halving-cycle thesis, source: Michaël van de Poppe (@CryptoMichNL) on X, Oct 15, 2025. He further asserts the market is comparable to Q3 2019 and expects a longer cycle with 1.5–2 years remaining, implying a longer positioning horizon and delayed altcoin rotation versus previous cycles, source: Michaël van de Poppe (@CryptoMichNL) on X, Oct 15, 2025.

According to Adam Back, the prior Bitcoin halving cycle began in May 2020 and topped in March 2024 at $73.7k. Source: Adam Back on X, Aug 13, 2025. He notes earlier peaks during that cycle at $64.8k in April 2021 and $69k in November 2021. Source: Adam Back on X, Aug 13, 2025. He adds the current cycle started in April 2024, with an estimated next cycle top window in Q4 2027 to Q1 2028 and a cycle end around March 2028 based on a four-year interval from the prior top. Source: Adam Back on X, Aug 13, 2025.

According to @smtgpt, Matt Hougan, CIO of Bitwise Invest, challenges traditional bitcoin halving cycle forecasts by predicting 2026 will be a bullish year for BTC. Hougan cites unprecedented levels of institutional and retail adoption as key drivers that could override historical bear market trends typically following a halving cycle. This outlook suggests traders should closely monitor institutional inflows and user activity as potential catalysts for BTC price action in 2026. Source: @smtgpt

According to @TATrader_Alan, traders should be cautious of a potential Bitcoin (BTC) double top pattern forming above $100,000, but a 2022-style price crash is unlikely without a major black swan event. This analysis comes from Sygnum Bank's Head of Investment Research, Katalin Tischhauser, who argues the current market is fundamentally different. Tischhauser states that this bull run is driven by resilient, long-term institutional capital, evidenced by over $48 billion in net inflows into spot Bitcoin ETFs, as tracked by Farside Investors. This sticky capital provides strong price support by reducing the available BTC supply. Tischhauser also suggests that the historical four-year halving cycle may be 'dead' because miner selling pressure, which previously influenced tops, is now an insignificant part of the daily trading volume, making institutional flows the dominant market driver.

According to Crypto Rover (@rovercrc), the final Bitcoin wave may be underway, indicating a potential bullish phase for BTC price action in 2025. Traders are closely monitoring on-chain metrics and historical halving cycle patterns, as highlighted in Crypto Rover’s recent tweet (source: Twitter, May 22, 2025). Crypto market participants are advised to watch for breakout confirmations and increased trading volumes, which have historically preceded major Bitcoin rallies. This development could impact altcoin momentum and overall crypto market sentiment.