指數平滑移動平均線,是為移動平均線被視的缺陷而發展出來的,為解決一旦價格已脫離均線差值擴大,而移動平均線未能立即反應,EMA可以減少類似缺點。

Login/SignupDownloadappDownloadapp+CongratulationsYou'vesuccessfullygotadvancedquotesworth5000HKDDownloadAPP>>HomeNewsHelpCenterAboutLanguage简繁ENHelpCenterFundamentalanalysisIndexintroductionEMAindexsmoothmovingaverageFundamentalanalysisMacroanalysisIndexintroductionCompanyanalysisfinancialanalysisPsychoanalysisEMAindexsmoothmovingaverage1IntroductionAnexponentialmovingaverage(EMA)isatypeofmovingaverage(MA)thatplacesagreaterweightandsignificanceonthemostrecentdatapoints.Theexponentialmovingaverageisalsoreferredtoastheexponentially weighted movingaverage.Anexponentiallyweightedmovingaveragereactsmoresignificantlytorecentpricechangesthanasimplemovingaverage(SMA),whichappliesanequalweighttoallobservationsintheperiod.EMA5,EMA10,EMA20,EMA60,EMA120,EMA250correspondtotheexponentialsmoothingmovingaveragesof5,10,20,60,120,and250respectively.2.CalculationformulaFindtheN-dayexponentialmovingaverageofX,whichisgenerallyexpressedas:EMA(X,N)inthestockformula.WhereXistheclosingpriceofthedayandNisthenumberofdays.Indexaveragevalueoftheday=Smoothingcoefficient*(Indexvalueoftheday-Yesterday’sindexaverage)+Yesterday’sindexaverage;Smoothingcoefficient=2/(periodunit+1);Derivedfromtheaboveformula,weget:EMA(N)=2*X/(N+1)+(N-1)*EMA(N-1)/(N+1).3.ApplicationInactualtradingactivity,theEMAindicatormainlyhasthefollowingsixbasicusages.1)The5-dayEMAand10-dayEMAlinesistheshort-termcycle,the20-dayEMAlineisthemid-termcycle,andthe60-dayEMAlineisthelong-termjudgmentcycle.Amongthem,the60-dayEMAlineisthecriticalturningpointforbullandbear.2)5-dayEMAcrossingabovethe10-dayEMAlineisashort-termbuysignal;breakingthebelowthe10-dayEMAlineisashort-termsellingsignal.3)10-dayEMAcrossingabovethe20-dayEMAlineisamid-termbuysignal;breakingbelowthe20-dayEMAlineisamid-termsellsignal.4)20-dayEMAlinecrossingabovethe60-dayEMAlineisalong-termbuysignal;breakingbelowthe60-dayEMAlineisalong-termsellingsignal.5)Ifthe5-dayEMAlinecrossesorbreaksthe20-dayE