Bitcoin's price action today shows a pattern of sharp rises followed by pullbacks. On the daily chart, after a narrow range oscillation over the weekend, the price opened testing the 90,000 level, then faced resistance and slightly retreated. The Bollinger Bands remain contracting, and the short-term moving averages are close to the midline. The MACD fast and slow lines are extending upward, volume bars are increasing, the KDJ is crossing upward, and the VR indicator is oscillating near 90—these signals indicate bullish sentiment.

The four-hour chart tells a clearer story. During the early session, the bullish candlestick broke above the upper band but was resisted around the EMA200. Short-term moving averages are showing signs of turning upward around the midline, and the Bollinger Bands have opened. The MACD has again broken above the zero line, with volume increasing. However, the KDJ is encountering resistance near 100, showing a downward tendency—this suggests that although the early rally was strong, there is a lack of substantial breakout.

The key short-term levels are clear: the 90,000 level above must be broken through; if successful, the next resistance is at the upper daily band. The first support below is at 88,000; if broken, attention shifts to the previous level at 86,000. Short-term trading references: go long at 88,500 (stop loss at 86,800), go short at 90,050 (stop loss at 91,800).

Ethereum follows Bitcoin's rhythm. It surged to 3,056 in the morning but then retraced, consistent with the expected second resistance at 3,055 for short positions. The four-hour chart also shows resistance at the EMA200, with a bearish close indicating that the short-term resistance remains effective. A breakout would then need to be confirmed by the daily 60-day moving average. Support levels below are sequential: 2,950 and 2,880. Short-term suggestions: short at 3,038 (stop loss at 3,120), long at 2,975 (stop loss at 2,908).

Overall, both coins are repeatedly testing key levels in the short term. Whether breaking through or pulling back, there are clear reference points. Grasping support and resistance levels is crucial to timing short-term moves.