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Where do I get good definitions for the subject abbreviations?
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Greetings,

http://boards.fool.com/Message.asp?mid=17883037 is a post with a lot of common abbreviations used. http://www.acronymfinder.com is a site some use to look up acronyms. In some cases context may be required to determine which is appropiate as if I look up GSD on acronymfinder.com I get these definitions:

GSD General Services Division
GSD General Shut Down
GSD General Support Division
GSD General System Description
GSD General System Division (IBM)
GSD Generating Significant Dose
GSD Genesee School District
GSD Geodetic Survey Division
GSD Geographic Survey Data
GSD Geometric Standard Deviation
GSD German Shepherd Dog
GSD Glass Sliding Door (real estate)
GSD Global Service Delivery
GSD Global Situation Display
GSD Good Student Discount (insurance)
GSD Gott Sei Dank
GSD Government Services Directory
GSD Government Support Date
GSD Graduate School of Design
GSD Grain Size Distribution
GSD Graphical Situation Display
GSD Graphics Systems Division
GSD Green Screen of Death
GSD Ground Sample Distance
GSD Ground Scale Distance
GSD Ground Slant Distance

SDaSD is one I've never heard of though and even trying search engines like http://www.google.com don't seem to yield any good results. You might want to ask the poster using the term what they meant.

Regards,
JB
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Where do I get good definitions for the subject abbreviations?

I see that this is your first post to the Motley Fool's discussion boards. Welcome to the Fool. While jbking has offered you a list, I'm pretty sure what you're looking for are:

CAGR: Compound Annual Growth Rate
GSD: Geometric Standard Deviation

CAGR deals with the amount of return an investment has. GSD is a measure of an investments' statistical variance (or probable volatility) around its mean (or the CAGR.) GSD is just like normal standard deviation, but is figured using a logorythmn multiplier form to compensate for the fact investments compound.

The terms were first used on the Mechanical Investing Board, and with the high traffic that board has, have crept into general usage here on the Fool.

For a detailed explanation of how they are figured check out these two posts:
Rough Draft Lesson Three, Part 1
http://boards.fool.com/Message.asp?mid=19369467
Rough Draft Lesson Three, Part 2
http://boards.fool.com/Message.asp?mid=19542779

Not sure about SDaSD. If you have a link to a post where that term is used please post it, and I'll try and define it as well.

hth
doc

emailed and posted
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The term SDaSD is used as a stock performance indicator on the Mechanical Investing board. Here's an example.

http://boards.fool.com/Message.asp?mid=19528346&sort=whole#19528346


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The term SDaSD is used as a stock performance indicator on the Mechanical Investing board. Here's an example.

http://boards.fool.com/Message.asp?mid=19528346&sort=whole#19528346


The poster of that post, pnyberg, defines SDaSD as:

"SDaSD means Standard Deviation across Start Days. Each backtest of each screen has 21 test runs which start on 21 consecutive trade days. A final CAGR and GSD is calculated for each test run independently. The CAGR and GSD numbers that appear in the Recent Results report are averages of the results of the 21 test runs. SDaSD is the standard deviation of the 21 CAGR values. Min and Max are the best and worst CAGR values across the 21 test runs."

(and adds)

"For future newcomers, I'll add a note to my weekly post defining this clearly non-intuitive acronym."

doc
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David,
Thank you for your such an informative and high quality response to my question.
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