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Jamal Munshi, Sonoma State Univesity, 1992 | ||
theory of technical analysis
emh implications: technicians use information from past prices to forecast future price movemements. this violates the random walk model of stock prices and the weak form of the emh. emh says that the market price already contains information in past prices. random walk says prices are generated by a weiner process, i.e., price movements are independent. empirical evidence: the empirical and anecdotal evidence is consistent with the emh. the evidence shows that chartists are not able to beat the market on a consistent basis. many such papers are listed in my annotated bibliography. the evidence against the emh consists of some known anomalies. examples: the january effect, the weekend effect, nfl effect, and the election effect. objective of technical analysis: market indicators and chart patterns trigger trading rules (also called "filter rules"). these trading rules are expected to outperform emh strategies. (emh strategy = buy and hold the index) technical analysis in practice: technical analysts respond to the emh argument in three ways. 1. newer ("more sophisticated") analysis tools. 2. claim that markets are efficient because they are actively removing inefficient pricing, 3. avoid purely technical trading rules. many asian newspapers (bangkok post) publish technical analysis information daily. technicals: these are numbers that summarize the condition of the market or a security
number of issues advancing - number of issues declining. short interest outstanding: short sales that have not been covered. if the number is large then we know that these short sellers will be in the market buying, so it is a bull indicator cash position of stock funds stock funds are limited in their ability to hold cash by the prospectus investor confidence index confidence index = yield spread expressed as a ratio of high grade/low grade put/call ratio number of outstanding call option contracts / number of outstanding put option contracts odd lot trading theory: odd lot traders are small investors and do not have information relative strength track stock price as ratio of P/index the valueline strategy value line ratings: 1 (best) thru 5 (worst) forecast stock performance over the next 12 months for 1700 stocks followed by valueline dow theory congestion and breakout: long shallow bar followed by move out of the bar is a breakout. direction of breakout signals bull or bear fulcrum: breakout downward more dramatic if congestion preceded by steady decline. in p&f chart, a vertical drop followed by congestion |