MurreyMath

SWJ12 · Jan 7, 2003

Some of the MurreyMath probabilities I noticed resemble random walk probabilities (square of distance from fixed point) which is rather interesting. But I have difficulty believing that the same security/futures trading at the same price have the same price movement probabilities . So my question is... has anyone tried using standard deviation as a way to dynamically adjust the MurreyMath levels?

tradenut · Jan 7, 2003

Could you please expend on your use of Standard deviation.
Thanks

birgulino · Jan 7, 2003

SWJ12 wrote: "So my question is... has anyone tried using standard deviation as a way to dynamically adjust the MurreyMath levels?"

Yes, we have. It works like magic! Just give it a try!

ArchAngel · Jan 7, 2003

Quote from oddiduro:

This is what I am looking at:

So you're trading the S&P futures without actually looking at the ES realtime chart (just the cash index - which doesn't actually update continuously in realtime and doesn't reflect the futures premium fluctuations)?

oddiduro · Jan 7, 2003

Quote from ArchAngel:

So you're trading the S&P futures without actually looking at the ES realtime chart (just the cash index - which doesn't actually update continuously in realtime and doesn't reflect the futures premium fluctuations)?

Nope, I trade whatever set ups turn up for me that day. I monitor currencies, commodities, and equities mainly.

I haven't been attracted to the index futures yet. I don't really know what the appeal is, to tell you the truth.

Sarasota · Jan 7, 2003

Quote from oddiduro:

I haven't been attracted to the index futures yet. I don't really know what the appeal is, to tell you the truth.

your kidding, right?

ArchAngel · Jan 7, 2003

Quote from oddiduro:

Nope, I trade whatever set ups turn up for me that day. I monitor currencies, commodities, and equities mainly.

I haven't been attracted to the index futures yet. I don't really know what the appeal is, to tell you the truth.

Then what ARE you trading off the SPX? You're quoting entry numbers apparently based on the cash index and talking about shorting the S&P, except you can't trade the cash index directly - got to use SPYdrs or the index futures.

But then why wouldn't you just use the actual instrument you're trading instead of the S&P cash index?

WDGann · Jan 7, 2003

Paper trader???

Hmmm...

WDGann · Jan 7, 2003

Oddiot... you're funny!!!

dottom · Jan 7, 2003

Every strategy I've tested that looks at SPX instead of the underlying futures (or ETF) recorded better results with SPX that would not have been possible due to inherent lag in SPX vs. futures and other misc. issues such as how most data vendors report the overnight Globex activity as part of the opening bar in SPX.

Lots of paper traders are attracted to the SPX because of the ease of data management (no need to deal with continuous or back-adjusted contracts), or also because the SPX data is usually free. I think all paper traders who are considering trading the index futures should invest a few dollars to get the actual data and maintain it.