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re: Stocks...

Posted on 5/2/10 at 4:02 pm to
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 4:02 pm to
Yeah, I didn't either, up until this point. I didn't think of it in the wiki sense either. I hope your professors set the record straight as this will change what I screen for in the future for choosing stocks which won't be subject to a general market selloff. Appreciate it fellas.
Posted by kfizzle85
Member since Dec 2005
22022 posts
Posted on 5/2/10 at 4:02 pm to
quote:

My remaining question is if beta is not tied to direction what is the role of negative beta. The fact that there's negative beta necessitates direction to be taken into account simply due to the fact that "opposite volatility" doesn't make sense.


It doesn't, which is why it only happens in theory and never in reality. I think beta might incorporate direction to some degree, since it necessarily uses covariance, but I think correlation gives you a pure measure of direction, whereas beta gives you a measure distorted by standard deviation.
Posted by TheHiddenFlask
The Welsh red light district
Member since Jul 2008
18384 posts
Posted on 5/2/10 at 4:03 pm to
quote:

ETA: Oh and thanks for helping me procrastinate for another hour. This entire weekend was a complete fail.



Same here.
Posted by wegotdatwood
Member since Aug 2009
17094 posts
Posted on 5/2/10 at 4:04 pm to
So where do the small caps we've played fall into?
Posted by TheHiddenFlask
The Welsh red light district
Member since Jul 2008
18384 posts
Posted on 5/2/10 at 4:05 pm to
quote:

So where do the small caps we've played fall into?



Beta greater than one
Correlation near zero
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 4:09 pm to
I'm going to have to tinker with my screener once fizz and THF report back. As of right now, ignore my previous post. Actually, I'll just delete the part about Beta. Whether to invest in small/mid or large caps won't be effected, so I'm still in favor of small/mid caps under 10 bucks that are listed on one of the three major exchanges.
Posted by kfizzle85
Member since Dec 2005
22022 posts
Posted on 5/2/10 at 4:18 pm to
My email. I sent it to both of my finance professors, I hope this starts a battle between Phds, that would be pretty funny:

quote:

Dear Dr. XX,

I know beta is not explicitly on our final, but I am studying for Level 1 of the CFA, and I am having a bit of a crisis of confidence, and I was hoping you could help answer my question.

I was under the impression that Beta measured an asset's volatility relative to the market's volatility. Since the market volatility is measured by standard deviation, which is directionless, I thought Beta was also directionless, and simply represented the magnitude of the volatility change, and not necessarily the direction. For instance, an asset with a beta of 2 would be twice as volatile as the market, but if the market moves UP 3%, the asset will deviate 6%, not necessarily go UP 6%. Not to say that an asset and the market cannot move in the same direction, but I was under the impression that correlation was a better measure of direction.

However, there was disagreement on this in a conversation I was having with some fellow candidates, where some people feel that beta represents both volatility AND direction. In attempting to figure out the answer, I leaned on correlation, but since the Beta coefficient is computed using covariance, which is itself a measure of correlation, Beta must measure correlation (and thus direction) as well.

There are multiple interpretations from respectable sources on the internet, so the only thing I could conclude, given my relative knowledge of statistics, was that beta measures both volatility AND direction, but that dividing covariance by standard deviation makes the correlation measured by covariance directionless. The ultimate question at hand is: is beta a proper way to measure correlation (direction), or should an investor use beta for magnitude (volatility, directionless) and correlation as a pure measure of direction?

Sorry for the long email, but it's really bothering me as it is kind of fundamental.

Thanks for any help.
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 4:25 pm to
That email sums up the misunderstanding perfectly. Thanks.
Posted by wegotdatwood
Member since Aug 2009
17094 posts
Posted on 5/2/10 at 4:46 pm to
Do you daytrade rs?
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 4:53 pm to
Rarely, I'm more of a swing/position-trader with some of my portfolio and long-term with the other. I daytrade when I have the time, but my schedule usually doesn't permit it.
Posted by wegotdatwood
Member since Aug 2009
17094 posts
Posted on 5/2/10 at 4:57 pm to
Do you ever just load up on any one time if you think it's going to be great or do you split your money up? Right now I have most of mine in SORL and some in CLRT.
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 5:03 pm to
Depends. If it's a stock I'm buying at what I think is the bottom, I load most of my position on the front end. If it's one that I just have to own now, but I think will likely drift lower in the near future, then I load up a little then save some powder to average down with later.
Posted by wegotdatwood
Member since Aug 2009
17094 posts
Posted on 5/2/10 at 5:21 pm to
What do you use to find about different companies? I've just been reading as much as a can. Then once I find something that I think might be good then I try and research it more.
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 5:53 pm to
1. Fins (This trumps everything else. If fins suck, I usually immediately write the company off unless I find something that trumps fins or I find cause to believe the fins will soon be greatly improving.) Looking mainly for Revenue, Earnings, and Margin Trends; Low-Debt or Enough Cash to Cover Debt; Cash per Share; Ratio of Assets:Liabilities; Ratio of P/E to Expected Earnings Growth (PEG).

2. SEC filings: Looking for market capitalization; capital structure; dilution from options, warrants, or need for capital; competitive advantage; growth model; plans; anything relevant to value

3. Recent Press Releases/News Coverage: Read the most recent PRs as this info. likely won't be included in the company's 10-K or 10-Q if it develops after. Do the material events add or substract value from the company?

4. Technical Analysis: You've found a good buy, but is it a good buy now? Just because the fundamentals are good doesn't mean the stock isn't overpriced now. A meal at Ruth's Chris is a great meal (good fundamental quality), but not such a great meal for 10,000 bucks (bad technical quality). The same goes for stocks. Buying AAPL at 272 was a good fundamental buy (it's AAPL we're talking about here) but not a good technical buy (it was extremely overbought). Should use multiple timeframes here (daily 6 mo., weekly 2/3 year, monthly 5/10 year charts, etc.).

5. Fundamental/Technical Quality of Sector: AAPL can be performing well, but if Technology sector takes a hit, will AAPL likewise take a hit?

6. Fundamental/Technical Quality of Industry: AAPL can be performing well, but if Computer Hardware industry takes a hit, will AAPL likewise take a hit?

7. Fundamental/Technical Quality of General Market: AAPL can be performing well, but if the Dow takes a hit, will AAPL likewise take a hit?

7. There is more: What does the girl next door think of JOEZ? What does your grandmother's physician think of CLRT? What does your geology professor think of the demand for niobium? What do management's credentials look like? Are any of them near retirement/old age? For example, Stan Lee heads a company called POWN which ties his comics to movies for production, but by his own admission, if he dies the company will be virtually worthless. Stan Lee is an old mofo, if he gets diagnosed w/ cancer, investors will likely flee. We'll call this Category 7 "Practical DD". Ignore steps 1-7 and ask yourself, "Why do I like this company?", "Why do consumers like this company?", "What will cause this company to prosper into the future?"

This is a lot of stuff. I don't always go through each of these steps. Sometimes I look at techs alone. Sometimes I put more weight on fundamentals. Sometimes, I get a tip from a fellow investor of strong repute and I act without doing any DD, but this is rare and you should forget about it for now. Over time, you'll meet fellow investors whose words are as good as gold, partly because what they look for is in line with what you look for and their goals are in line with your goals.

This is not an exclusive list. For now, you should be concentrating on Step #1 as it is the backbone to everything else.
This post was edited on 5/2/10 at 6:02 pm
Posted by kfizzle85
Member since Dec 2005
22022 posts
Posted on 5/2/10 at 6:55 pm to
First answer didn't help at all:

quote:

Beta is the stock's coveriance with the market portfolio divided by the mkt variance. As you know, covariance includes correlation and therefore beta could be negative. If a stock has a negative beta, it means it moves in the opposite direction of the market.


We already covered that in this thread, and he didn't address my question at all that I can tell.
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 7:01 pm to
quote:

We already covered that in this thread, and he didn't address my question at all that I can tell.



Ha, you should have CC'd them both. May cause them each to attempt to outdo the other and provide for better responses.
Posted by TheHiddenFlask
The Welsh red light district
Member since Jul 2008
18384 posts
Posted on 5/2/10 at 7:14 pm to
From the Man:

quote:

I believe you are both slightly wrong. Beta is more or less correlation with the market but correlation of what? It is the correlation of the stock return with the market return. It is definitely not correlation of volatility to the market but it is effectively the relative volatility of the stock to the market. Correlation, stock volatility and market volatility make up the formula for beta. But I would never say that it is correlation with market without being specific and certainly would never say it is correlation of volatility. I would also not say it is correlation of the direction of price movements. It reflects correlation of return but also volatility.


I posed the question as if I was having a discussion with a friend.
Posted by kfizzle85
Member since Dec 2005
22022 posts
Posted on 5/2/10 at 7:36 pm to
Ha, man, even the guy who wrote the book is giving a grey answer to the question. My attempt to interpret, please respond in kind:

quote:

But I would never say that it is correlation with market without being specific


my point

quote:

and certainly would never say it is correlation of volatility


my point again (which is why you should use a correlation coefficient for that and not beta).

quote:

I would also not say it is correlation of the direction of price movements.


My point initial and overarching point.

The kicker:

quote:

It reflects correlation of return but also volatility.


You and RSBR's point. :blankstare: Back at square 1, that was completely circular.
Posted by scormi5
Baton Rouge, Louisiana
Member since Jan 2007
1699 posts
Posted on 5/2/10 at 7:43 pm to
Can we get this thread a sticky? I think its a good thread for anyone new to Money Talk to read/browse. And its funny to look back on the stock predictions posters made.
Posted by RedStickBR
Member since Sep 2009
14577 posts
Posted on 5/2/10 at 7:45 pm to
Neither answer appears to be very black and white. If it's grey for these professors, no wonder it's grey for us.
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