John Bollinger, the creator of the widely used Bollinger Bands technical indicator, has drawn market attention to emerging 'W' bottom patterns in Ethereum (ETH) and Solana (SOL), signaling potential imminent volatility and bullish reversals. On October 18, 2025, Bollinger shared his analysis via X (formerly Twitter), noting that these formations in $ETHUSD and $SOLUSD charts suggest a critical inflection point, while Bitcoin (BTC) remains absent from such signals and is in a consolidation phase.
Bollinger's observation specifically highlights that 'W' bottoms often precede significant market moves, prompting traders and analysts to prepare for possible sharp price shifts. Historically, similar Bollinger Band setups have led to substantial gains; for instance, Bitcoin saw a 75% rise in early 2024 following such patterns. However, experts caution that around 40% of comparable setups have resulted in downturns, underscoring the inherent uncertainty in crypto markets.
Supporting this analysis, the Ethereum to Bitcoin ratio surged by 7% within a week, aligning with past altcoin cycles and boosting investor interest. Institutional players are closely monitoring these developments, as Bollinger's past accurate predictions, like the April 2025 BTC rally, lend credibility to his insights. Market participants are advised to watch for confirmation signals, as increased scrutiny could lead to capital shifts and adjusted trading strategies amid ongoing altcoin rotations.
