Moving Averages-simple or exponential

Quote from bdixon619:



Pretzel,

Just so no one is confused, especially me; volume in this calculation refers to "how hot" the moving average is in relation to the price series. It has nothing to do with number of shares or contracts traded. To clarify: the higher the volume multiplier the more overshoot and undershoot you will experience with the indicator -- the reason why I included the parameters I used for that variable -- .8 and .7. Good luck.

Bruce


I did a search on the WL site and found that somebody already coded the concept but it was not called a smoothed MA - http://www.wealth-lab.com/cgi-bin/WealthLab.DLL/editsystem?id=2230

Saves me the trouble.

pretzel
 
If you are daytrading you will want an MA that can generate a signal much faster than what SMA or EMA will give you. You can look at the some of the adaptive MA's but eventually you will settle on something based on DSP. You not only want to be able to filter out more noise, but also maintain less lag. The noise-lag relationship is usually a sacrifice between one and the other (smoothness vs. lag by expanding sample window). But various DSP techniques allow you to optimize both making fewer sacrifices.

The best publicly available MA is Jurik's JMA.

Regarding daytrading, the reason an SMA or EMA may not give you a valid signal is in the beginning of the trading session your MA will be out of sync. Even if there is no gap, the dynamics of each morning session are different from the previous day's ending session, yet an SMA or EMA will simply treat the pervious day's price data as if it were today's. You need something that can adjust quickly and filter out the noise. This is especially true if there is a large gap.

If you are building dynamic non-linear trading models and using an MA as a proxy for price because bar-to-bar price changes are too noisy, then you want to use the best possible MA you can find.

A better MA does make a difference, but it depends on your method, timeframe, and how you use it. Eg. if you must two MA's as just a simple trend filter, then it doesn't matter as much.
 
Quote from dottom:

If you are daytrading you will want an MA that can generate a signal much faster than what SMA or EMA will give you. You can look at the some of the adaptive MA's but eventually you will settle on something based on DSP. You not only want to be able to filter out more noise, but also maintain less lag. The noise-lag relationship is usually a sacrifice between one and the other (smoothness vs. lag by expanding sample window). But various DSP techniques allow you to optimize both making fewer sacrifices.

The best publicly available MA is Jurik's JMA.

Regarding daytrading, the reason an SMA or EMA may not give you a valid signal is in the beginning of the trading session your MA will be out of sync. Even if there is no gap, the dynamics of each morning session are different from the previous day's ending session, yet an SMA or EMA will simply treat the pervious day's price data as if it were today's. You need something that can adjust quickly and filter out the noise. This is especially true if there is a large gap.

If you are building dynamic non-linear trading models and using an MA as a proxy for price because bar-to-bar price changes are too noisy, then you want to use the best possible MA you can find.

A better MA does make a difference, but it depends on your method, timeframe, and how you use it. Eg. if you must two MA's as just a simple trend filter, then it doesn't matter as much.

I'll check out the Jurik JMA - does it have a WL version?

I'm using the smoothed MA from Ensign for daytrading 1-min ES and it works better than the standard MA's. The WL script version (6 tweakable parameters) is not exactly the same as the Ensign version (fixed unknown parameters). I'm trying to tweak the parameters to produce the same line and signals as the Ensign version (or even better signals using the optimization feature) - WL is cheaper in the long run and can be automated if I can duplicate the same signals.

pretzel
 
Quote from billpritjr:

For info

I use a variety of SMA crossovers (5/20, 5/25, 5/35, 7/35 primarily) on a group of about ten stocks. I have gone back on each stock two years, and usually one of the above SMA sets works very well. At times, I will use RSI as "supplemental information."

Be advised, the stocks in my group are all "very trendy" and react well to SMA method, not every stock in the universe will do this.

I monitor and trade this same group of stocks, all year long. All high volume, high liquidity stocks, allowing me to go long and short as the trend deems necessary. I am usually only short if the overall market is in bearish status (old Stan Weinstein lessons from the past).

some of them-

BBY - 7/35 SMA with RSI-30 day as secondary information
AMR- 5/25 alone works pretty damn good
AZO- 7/35 with RSI-35 works well
JPM- 5/30 with RSI-20
NVDA- 7/35 with RSI-20

I use www.stockcharts.com as my primary chart source.

After reading various books about trend following, learning of Donchians 5/20 crossover, of Seykota teaching 10/20 cross at a local college ("How to Trade your Way to Financial Freedom", page 10), etc, and trying to make sense of OTHER stuff like candlesticks, Zig Zag, etc, the SMA cross works best for my IQ and educational level.

Schwager, Weinstein, Murphy, some fav. authors

take care guys

BILL

billpritjrREMOVECAPS@yahoo.com


Yes, I'm back to using a single MA (the smoothed MA) + MACD after trying a lot of other things (including multiple MA's) - the simpler the better.


pretzel
 
Quote from gnome:

I look to see which the market has been "respecting" during this move and expect that one will continue to work. I don't believe that between SMA and EMA one is better... just one happens to be working better during this phase.:D


If neither is "better" than the other, and your preference depends on which one is "working" during "this phase", how, practically speaking, is that different to neither of them "working" at all?
 
Quote from pretzel:



I'll check out the Jurik JMA - does it have a WL version?

pretzel

A Smoothed MA for eSignal is available. It was created by one of our Development Partners using EFS (eSignal Formula Script). The Smoothed MA can be found at http://share.esignal.com/download.jsp?groupid=114&folder=Miscellaneous&file=SmoothedMA.efs

Additionally, Jurik's Toolset is available for eSignal. Information on this package can be found at http://www.esignal.com/partners/studies/default.asp#jurik
 
Quote from marketsurfer:

the simple moving average clarifies trend. nothing more, nothing less. it is ALL one needs.

surfer:)

indeed

I use SMA (different ones for different time frames, depending
on what i'm trading)

The key is taking that profit. The SMA gives you a "line in the
sand" much like S/R or channel. There is a cost to cross the line
(whipsaw). Profit should pay for several line crossings.
 
Quote from NihabaAshi:




I know a lot of traders that go broke trading (consistently) the crossover itself...


NihabaAshi

Moving averages don't kill traders,
traders kill traders.
 
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