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Showing posts with label evaluation. Show all posts
Showing posts with label evaluation. Show all posts

2011-02-05

Typical 10 Phases of Stock Market Disturbance

Within bear or bull market there are always fluctuations in stocks prices. It can be said about indexes, ETFs, and most other investing instruments. As example, let's consider an equilibrium market state that is based on a realistic evaluation. Assume it is a starting point. Then at some moment a good news released with the expectation that is above a realistic evaluation. The first reaction would be a price up-move (stage 1).



As prices are tend to rise, many would follow a simple strategy to join a growth movement that additionally enforced by greed (stage 2). Since there are always some participants in the market that might got this news with a delay or are too big to make the decision and perform transactions fast, the curve price might continue rising but with a slight less slope (stage 3). Normally, news can be accompanied by other overly optimistic opinions. Also there is always a room for some errors and miscalculations. These factors can be materialized in a short spike of prices (stage 4).

At some point, when a buying power exhausted and there are no other factors to sustain the growth, a reversal happens. All fast trading systems and dynamic participants of the market including short-sellers push the market down rapidly (stage 5). When the correction technically becomes more obvious, many start selling; the movement becomes stronger additionally enforced by fear and leads prices below the equilibrium line (stage 6).

Since fear is more strong drive than greed, normally the value of downtrend gradient is bigger than uptrend one. Two phases that are similar to ones existing in the uptrend curve part, delay (7) and miscalculation (8), follow until a bounce back (9). The after-bounce curve part can have a decaying-fluctuation pattern (stage 10). This pattern finally approaches the market evaluation to the equilibrium line.


Practically, very often, all described above consequent 10 phases might not be observed clearly due to several reasons. One of them is a fact that a single isolated news happens very seldom. Another typical reason is that all factors that drive the market might not be available in the form of publicly available information all the time.

© Alex Shmatov. Published with permission of the copyright owner. Further reproduction prohibited without permission.

2010-06-09

One-day Stock Market Performance Can Be an Indicator

According to Efficient Markets approach, news and other publicly available information are incorporated into the price of a stock. One of the available news factors is a state of the stock market itself - bullish, bearish, or neutral. The state can be the same or it can evolve. A state change results the re-evaluation of price with a certain time delay. So any stock market movement causes a certain reaction of investors. If the market suddenly plunges, investors may start panicking, selling, and dragging the market even faster. If stock market prices are increasing without fluctuations for long, investors become confident to invest. As a result, if more money inflows, demand pushes prices up.

In the same way, one-day stock market performance can impact the emotions of investors. Therefore, it can be considered as a kind of indicator. The chart below shows how a big one-day positive performance can push the market up (callout 1..5):




The chart represents the curve of S&P-500 index values for period from October 2008 to April 2009 (blue line) and the curve of one-day performance (red line). The performance calculated using formula:


P1 = 100% * (C2 - C1) / C1



where C2 - current day closing price, C1 - previous day closing price.

© Alex Shmatov. Published with permission of the copyright owner. Further reproduction strictly prohibited without permission.