ASML Surges 6.37% to $927.8 on Bullish Technical Momentum and Heavy Volume

ASML Holding advanced 6.37% in the most recent session, closing at $927.8 on significant volume, signaling strong bullish momentum within the context of a broader technical framework.
Candlestick Theory
Recent candlesticks depict decisive bullish momentum. The session on 2025-09-15 formed a robust bullish engulfing pattern closing at $867.3 after testing support near $834, while the latest large green candle ($916.03–$938.68) breached the psychological $900 resistance. This level now converts to immediate support. Key resistance emerges at $940-$950, aligning with the yearly high. The absence of reversal patterns like shooting stars suggests continued upside bias.
Moving Average Theory
The moving average structure confirms a strong uptrend. The 50-day EMA (~$892) sustains above the 100-day EMA (~$842) and 200-day EMA (~$730), reflecting bullish alignment across timeframes. The ascending 50-DMA has acted as dynamic support during pullbacks since mid-August. The expanding gap between short and long-term averages reinforces trend strength, though widening dispersion may hint at eventual mean-reversion risk.
MACD & KDJ Indicators
MACD exhibits a bullish stance, with the signal line maintaining above the histogram since early September. Histogram bars are expanding, corroborating accelerating upward momentum. KDJ oscillators show the %K (88) and %D (82) entrenched in overbought territory above 80, signaling stretched conditions. While such readings typically precede pullbacks, the persistent elevation since September 10 underscores strong trend commitment, demanding caution rather than reversal assumptions.
Bollinger Bands
Price rides the upper Bollinger Band ($926), following a volatility contraction in late August (bandwidth narrowing). This breakout expansion denotes strong directional conviction. The breach of the upper band historically preceded minor consolidations (e.g., late May 2025), suggesting potential near-term digestion. The middle band (20-DMA, ~$880) offers dynamic support.
Volume-Price Relationship
Volume validates the breakout. The surge to 3.17 million shares on the 6.37% advance (2025-09-18) marks the highest volume in three months, confirming buyer conviction. Prior advances (e.g., +6.56% on 2025-09-15) similarly featured above-average volume, contrasting with lighter volume during minor retracements. This divergence affirms accumulation strength.
Relative Strength Index (RSI)
The 14-day RSI reads ~75, entering overbought territory (>70). While conventionally a warning sign, its persistence in the 70-80 zone since early September aligns with powerful trending phases. Previous instances (e.g., mid-May 2025) saw RSI sustain >70 for weeks before meaningful corrections. This context suggests overbought conditions may extend, though warrant increased vigilance.
Fibonacci Retracement
Drawing Fibonacci levels from the October 2024 low (~$677) to the July 2025 high ($872) reveals critical confluences. The recent August pullback respected the 50% retracement ($750) as support before rallying. The current move challenges the 161.8% extension (~$940), aligning with the candlestick resistance. A decisive break above this projects toward $980. The 127.2% level ($890) now serves as major support.
Confluence and Divergence
Strong confluence exists at $890-$900 (psychological level, 127.2% Fibonacci, prior resistance, and 50-DMA), solidifying it as critical support. Bullish agreement appears across MACD momentum, volume confirmation, and moving average alignment. The primary divergence is the RSI’s overbought reading against persistent price strength. While KDJ’s overbought state mirrors RSI, its sustained elevation aligns more with trend continuation than reversal under current conditions. Traders should monitor for bearish reversal candlesticks or volume drying up near $940 to signal exhaustion.