As 股票持续下跌, the S&P 500 is approaching a key technical level—the 200日移动平均线（MA）上升, which currently stands at 5730.78. The index recently hit a 低点5737.41, edging closer to this significant support level. A confirmed break below the 200-日均线 could accelerate selling pressure, with traders likely targeting the 摇摆面积在5669.67和5688.43之间 (highlighted in yellow on the chart). This zone has historically acted as a key area of interest, where buyers may look to step in. However, if the downward momentum persists, the next major support level comes in at the 2024年8月涨势5633.27点回撤50%, a critical technical threshold that could determine the next directional move for the index.

Meanwhile, the 纳斯达克 has also come under renewed selling pressure, with the index 回落至200日移动平均线18，393.35以下. Earlier this week, the Nasdaq reached a 低点17，956.60, hovering just above a crucial retracement level—the 2024年8月涨势的50%斐波那契回撤至17，953.44. This level remains a key downside target for traders, as a sustained break below it would 强化熊市偏见 from a technical perspective. If sellers gain control, the risk increases for further downside movement, potentially testing deeper support zones.

The 200-日均线 is often viewed as a 长期趋势指标, and its breach on either index could signal a shift in market sentiment. For the S&P 500, staying above this level would suggest that the longer-term bullish trend remains intact, while a sustained move below it could indicate increased downside risk. Similarly, for the Nasdaq, continued pressure below the 200-日均线 and a break of the 50%回撤水平 would confirm a growing bearish outlook, making lower support levels the next likely targets.

由于市场波动性仍然较高，交易员将密切关注这些关键技术水平在未来几个交易日中如何保持。支撑反弹可能会导致买入兴趣重燃，而进一步下跌可能会加剧抛售势头，导致更深层次的回调。