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Data:2009-12-12 2:34
(1) OBV statistical changes in volume trends as a linear trend in stock speculation. The main theory is that "quantity is the price of the first indicators", while the stock price volatility and volume of the amplification or contraction are closely connected. Usually stock up the required volume is always large; down, then the total volume a smaller one.
(2) calculation method: The base period of a day, if:
1. Every other day index or stock up, then the base period OBV based on trading volume, coupled with the OBV.
2. Every other day or stock index fell, then the base period, minus the present day Volume OBV based on OBV.
2 Note: The closing price for the base of comparison.
As the K line is the main graphics, so graphics observation OBV must meet the K-line diagram.
(3) Application of principles:
1. OBV fall, stock prices rise, said buying an inability to sell signals.
2. OBV line rises, stock decline that took over the strong bargain-hunting as a buy signal.
3. OBV line slowly rising, it said that the gradual strengthening of buying a buy signal.
4. OBV line of rapid rises, said the forces will be exhausted as a sell signal.
5. Likely to form high price of M head, if the second end, OBV line unable to rise in volume but shrinking, this time easy-to-head and fell to form M, deviated from the phenomena.
6. On the contrary, it may form a low-cost W at the end, if the second end, OBV line leading up, volume expansion, this time easy to form a W at the end of the price rise, depart from the phenomenon of the two.
7. OBV line from positive to negative when the cumulative number for the downward trend, it should sell the stock to hold. On the contrary, OBV line from the cumulative number of negative to positive, they should buy the stock.
8. OBV line of the greatest usefulness, having observed the Council's stock market, after finishing, when it will break out of consolidation after the Board and the future direction, OBV line is an important reference for the direction of change.