历史数据亮起红灯:标普500连涨20周后的警示

比推Published on 2025-08-25Last updated on 2025-08-25

一、一周行情回顾:(08.18~08.22)

周一开盘价6445.02点,周三产生最低价6343.86点,周五创出最高价6478.89点,最终收盘价6466.91点,周振幅135.03点,涨幅0.27%,周线收出一根带下影线的小阳线,收在5周均线之上。

从4月7日到8月22日,指数已连续上涨了20周,共计96个交易日,累计最大涨幅达到34.05%左右。

标普500指数周线图:(动能量化模型*情绪量化模型)

image.png

(图一)

标普500指数日线图:

image.png

(图二)

标普500指数周线图:(历史数据回测)

image.png

(图三)

笔者上周文章的题目是《指数500进入变盘窗口期,观望为主等待方向选择》,在文章中依据多周期技术指标共振以及十几年历史数据回测,对本周指数做出预测。

在指数走势方面:目前指数继续在5月2日之后形成的上升通道内运行,维持高位震荡结构,上方压力位在通道上轨附近,上涨空间有限;指数向下调整时,第一支撑位在6300至6340点附近,重要支撑位在6200至6147点区域;8月14日指数进入变盘时间窗口,如果生效认为向下变盘概率大。

在操作策略方面:由于高位震荡结构叠加日线级别变盘窗口期,所以建议观望为止。对于稳健的投资者,保持现有30%的中线仓位,等待方向明确后再操作。对于激进的投资者,如果指数运行在生命线之上可以加大仓位;如果跌破后还需再次减仓,笔者推荐第一种操作建议。

现在回顾本周的实际走势:

周一指数以6445.02点开盘,全天做窄幅震荡,收出一根十字星K线;

周二震荡下行,收出一根跌幅为0.59%阴线;

周三指数震荡下跌,最大跌幅超出1%,但是尾盘快速收回,收出带下影线的小阴线;

周四窄幅震荡整理,收出小十字星K线;

周五指数开盘半个小时以后,由于受利好消息影响,指数快速拉升后维持高位震荡,当日收出涨幅为1.52%的阳线,将本周前四个交易日的跌幅全部“抹掉”,最终周线收出一根涨幅为0.27%带下影线的小阳线。

接下来,笔者将从技术指标以及历史数据回测等方面,分析当前指数发生的变化。

(一)、量化模型信号分析:

1、周线视角(见图一):

①、动能量化模型:持续发出高位钝化信号,动能1号线向上运行,能量(红)柱与上周相比继续缩短。

模型提示下跌风险指数:高

②、情绪量化模型:情绪1指标强度是5.63(取值范围0~10)左右,情绪2强度是4.55左右,顶峰信号指标是7.83。

模型提示下跌风险指数:高

③、数字监测模型:7月25日发出的周线级别D(取值A~E)转折信号已经失效,本周没有信号显示。

2、日线视角(见图二):

①、动能量化模型:本周二动能1号线向下死叉2号线,动能顶背离信号形成,周五能量(绿)柱与周四比较小幅缩短。

模型提示指数调整过程中。

②、情绪量化模型:周五收盘后,情绪1指标强调是3.29,情绪2指标强度是0,顶峰信号指标是2.98。

模型提示下跌风险指数:偏高

③、数字监测模型:没有顶部信号显示。

(二)、趋势时序与历史数据回测分析(图三):

①、回测数据区间:2009年3月6日2025年4月4日,共计840根周K线。

②、设定调整规则是:回调≤2周且跌幅≥5%,或者回调≥3周,回测数据中符合条件的调整共有52次。

③、统计历史数据寻找规律:每当指数从低点连续上涨20周以后,出现调整的概率为90.4%左右。

综上所述,笔者认为指数在周线及日线级别均处在高风险区域,维持高位震荡格局。行情走势还会有反复,建议控制好持股仓位。

二、下周行情预测:(08.25~08.29)

1、密切关注指数在上周五利好消息刺激后的走势演化,关注大市值权重股的异动。

2、目前指数继续在5月2日之后形成的上升通道内运行,上方压力位在通道的上轨附近,下方第一支撑位在6300至6340点附近,重要支撑位在6200至6147点区域

3、提醒投资者关注市场消息面的变化。

三、下周操作策略:(08.25~08.29)

由于标普500指数波动幅度有限,笔者决定将原来的中线及短线仓位合二为一,统一规划。

1、总仓位:多单持股仓位在50%左右,另外一半持币观望。如果指数跌破生命线通道,必须将持股仓位降到30%以下

2、对于激进的投资者,可以从持股仓位中拿出少部分筹码,依据笔者给出的支撑、压力位做“短差”

3、短线操作时,建议把分析周期切换到60分钟或者120分钟的小周期,以便获取更精准的买卖点。

4、个股分析:(只作为案例分析,不作为投资推荐)

美国航空(AAL)日线图:

image.png

美国航空(股票代码AAL):

波段操作,多单买入价:13.10~13.20美元;止损位:12.45美元,第一目标位:15.5~16美元。

分析理由:油价下跌利好航空股票。上周五大阳线突破整理了5个多月的平台,如果下周缩量回调支撑位13.20美元附近不破位,小仓位买入。

以上各种模型是本人操作时遵守的交易规则,不构成任何买卖依据。个人观点,仅作参考。

作者:Cody Feng


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说明: 比推所有文章只代表作者观点,不构成投资建议

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