ARCHIVED: What do :-) and other emoticons mean?
What does "rarely" mean in NASA's statement: "technically referred to as an exosphere because it’s so thin, its atoms rarely collide." I reset my laptop and now Steam games are all missing. What does Jennifer mean? J ennifer as a girls' name is pronounced JEN-ee-fer, JEN-if-er. It is of Welsh origin, and the meaning of Jennifer is "fair and smooth". From Gwenhwyfar, which also can mean "white waves". Variant of Guinevere. Mythology: in Arthurian tales, Guinevere was Arthur's queen. The name is made popular by film celebrity.
This might be too mm., but these languages share the same syntax. For specific features there's the tag of the language behind it, example:. See also kean lot of general hints and useful links at the regex tag details page. Stack Overflow for Teams — Dies and share knowledge with a private group. Create a free Team What is Teams? Learn more. Reference - What does this regex mean? Ask Question. Asked 7 years ago. What does p. m. p. o mean 2 months ago.
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Jan 18, · The:) notation is known as a smiley, and means that the statement it follows was intended as humor. When you tilt your head to the side, you see that: is the eyes, - the optional nose, and) is the mouth. This notation is often used in email, text messages, and other postings to communicate emotional context that would otherwise be lost or unclear. What does Samantha mean? S amantha as a girls' name is pronounced sa-MAN-thah. It is of English and Hebrew origin, and the meaning of Samantha is "God heard". Feminine of Samuel. Also contains the Greek -antha which means "flower". Occasionally used in the 17thth centuries. Samantha became popular in the s due to the TV show "Bewitched". Feb 01, · Mean reversion is the theory suggesting that prices and returns eventually move back toward the mean or average. This mean or average can be the historical average of .
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Measure content performance. Develop and improve products. List of Partners vendors. Mean reversion, or reversion to the mean, is a theory used in finance that suggests that asset price volatility and historical returns eventually will revert to the long-run mean or average level of the entire dataset.
A reversion to the mean involves retracing any condition back to a previous state. In cases of mean reversion, the thought is that any price that strays far from the long-term norm will again return, reverting to its understood state.
The theory is focused on the reversion of only relatively extreme changes, as normal growth or other fluctuations are an expected part of the paradigm. This theory has led to many investing strategies that involve the purchase or sale of stocks or other securities whose recent performances have differed greatly from their historical averages. However, a change in returns also could be a sign that a company no longer has the same prospects it once did, in which case it is less likely that mean reversion would occur.
The mean reversion theory is used as part of a statistical analysis of market conditions and can be part of an overall trading strategy.
It applies well to the ideas of buying low and selling high , by hoping to identify abnormal activity that will, theoretically, revert to a normal pattern.
Mean reversion has also been used in options pricing to describe the observation that an asset's volatility will fluctuate around some long-term average.
One of the fundamental assumptions of many options pricing models is that an asset's price volatility is mean-reverting. As the figure below depicts, the observed volatility of a stock can spike above or drop below its mean, but always seems to be bounded around its average level. High-volatility periods are typically followed by low-volatility periods and vice versa.
Using mean reversion to identify volatility ranges combined with forecasting techniques, investors can select the best possible trade. Mean reversion trading in equities tries to capitalize on extreme changes in the pricing of a particular security, assuming that it will revert to its previous state. This theory can be applied to both buying and selling, as it allows a trader to profit on unexpected upswings and to save on abnormal lows.
The return to a normal pattern is not guaranteed, as unexpected highs or lows could indicate a shift in the norm. Such events could include, but are not limited to, new product releases or developments on the positive side, or recalls and lawsuits on the negative side. An asset could experience a mean reversion even in the most extreme event. But as with most market activity, there are few guarantees about how particular events will or will not affect the overall appeal of particular securities.
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What Is Mean Reversion? Key Takeaways Mean reversion, in finance, suggests that various phenomena of interest such as asset prices and volatility of returns eventually revert to their long-term average levels.
The mean reversion theory has led to many investment strategies, from stock trading techniques to options pricing models. Mean reversion trading tries to capitalize on extreme changes in the price of a particular security, assuming that it will revert to its previous state. Compare Accounts. The offers that appear in this table are from partnerships from which Investopedia receives compensation. Related Terms Rescaled Range Analysis Definition and Uses Rescaled range analysis is used to calculate the Hurst exponent, which is a measure of the strength of time series trends and mean reversion.
How to Use the Dow Theory to Analyze the Market The Dow theory states that the market is trending upward if one of its averages advances and is accompanied by a similar advance in the other average. Elliott Wave Theory The Elliott Wave Theory is a technical analysis toolkit used to predict price movements by observing and identifying repeating patterns of waves.
Zig Zag Indicator Definition The Zig Zag indicator lowers the impact of random price fluctuations and is used to identify price trends and changes in price trends. Trend Analysis Trend analysis is a technique used in technical analysis that attempts to predict future stock price movements based on recently observed trend data.
Momentum Momentum is the rate of acceleration of a security's price or volume. Momentum generally refers to the speed of movement and is usually defined as a rate. Partner Links. Related Articles. Investopedia is part of the Dotdash publishing family.
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