Stock Of The Day: Two Indicators Suggest Proctor And Gamble May Have Reversed
Stock Of The Day: Two Indicators Suggest Proctor And Gamble May Have Reversed
This is important. Standard deviations are a statistical concept and many trading algorithms and strategies are based on statistics and probability theory. And they suggest that 95% of all trading should be within two standard deviations of the mean.Trading models typically contain a set of parameters or conditions that must be met to give trade signals. Some human traders may only use one or two in their models while some quantitative ones may use hundreds.
交易模型通常包含一组参数或条件，必须满足这些参数或条件才能发出交易信号。一些人工交易者在他们的模型中可能只使用一两个，而一些量化交易者可能使用数百个。
On the Procter & Gamble Co (NYSE:PG) chart, two possible parameters can be used as part of a model: the Bollinger Bands and the RSI Indicator. This makes it our "Stock of the Day."
在宝洁公司（纽约证券交易所代码：PG）图表上，可以使用两个可能的参数作为模型的一部分：布林带和相对强弱指数指标。这使其成为我们的 “每日股票”。
The red line on the price chart is a Bollinger Band. It is two standard deviations above the 20-day moving average.
价格图表上的红线是布林带。它比20天移动平均线高出两个标准差。
This is important. Standard deviations are a statistical concept and many trading algorithms and strategies are based on statistics and probability theory. And they suggest that 95% of all trading should be within two standard deviations of the mean.
这很重要。标准差是一个统计概念，许多交易算法和策略都基于统计和概率论。他们建议，所有交易的95％应在平均值的两个标准差以内。
If a stock exceeds this threshold to the upside like Proctor and Gamble, it is considered overbought. This will draw sellers into the market because they expect a reversion to the mean or a move lower.
如果某只股票像宝洁公司一样超过这个上行门槛，则被视为超买。这将吸引卖家进入市场，因为他们预计会回归均值或走低。
Their selling could push the stock lower. It could be a self-fulfilling prophecy.
他们的抛售可能会推动股价走低。这可能是一个自我实现的预言。
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The bottom half of the chart is the Relative Strength Index (RSI). This is another tool that traders use to determine if a stock is overbought. If the blue line exceeds the horizontal red line, it indicates overbought conditions. This could also draw sellers into the market.
图表的下半部分是相对强度指数（RSI）。这是交易者用来确定股票是否超买的另一种工具。如果蓝线超过水平红线，则表示超买情况。这也可能吸引卖家进入市场。
A possible trading signal to sell could be when the Bollinger Bands and the RSI simultaneously show a stock to be overbought.
可能的卖出交易信号可能是布林带和相对强弱指数同时显示股票处于超买状态。
As you can see on the chart, in late April the stock's price exceeded the upper Bollinger Band. However, the RSI did not indicate overbought conditions. This means there would have been no sell signal.
正如你在图表上看到的那样，4月下旬，该股的价格超过了布林带的上限。但是，RSI并未显示超买情况。这意味着本来不会有卖出信号。
Earlier this month the price exceeded the upper Bollinger Band but RSI did not move above the horizontal line. This means there was no reversal or sell signal.
本月早些时候，价格超过了布林带上限，但RSI并未突破水平线。这意味着没有反转或卖出信号。
On Sept.10, both indicators showed the stock to be overbought at the same time. And as you can see, it looks like a reversal has begun and a move lower could follow.
9月10日，这两个指标都显示该股同时处于超买状态。正如你所看到的，反转似乎已经开始，随后可能会走低。
Using two parameters to trigger sell signals can be a profitable way to trade. The chart of Proctor and Gamble is an illustration of this.
使用两个参数触发卖出信号可能是一种有利可图的交易方式。宝洁公司的排行榜就是一个例子。
Photo: Shutterstock
照片：Shutterstock
