Jumat, 03 Juli 2015

[smf_addin] Digest Number 3448

3 Messages

Digest #3448
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Re: Piotroski Scores by "Randy Harmelink" rharmelink

Messages

Thu Jul 2, 2015 7:59 am (PDT) . Posted by:

DefelRadar

Thanks Fandy for your quick response. I did not even think to look at data older than the past fiscal and last qtr statements! I never would have dreamed that quarterly statements from almost 1 year ago would have been new data (refreshed?) loaded just recently.

Thanks for pointing me to gurufocus I think that site might allow me to back test a system I am working on at least for the past 9 qtrs.

Aaron

Thu Jul 2, 2015 8:48 am (PDT) . Posted by:

DefelRadar

which would you say is more accurate the P-Scores you calculate or what GuruFocus comes up with?

The reason I ask is two stocks I have recently bought (OSIS and IIVI) showed P-Scores of 9 while GuruFocus has them at 7.

I think you remarked in your earlier post how it was odd that gurufocus had a different score. I do prefer the quarterly based calculation that it looks like you do for the P-Score

Thanks,

Aaron

Thu Jul 2, 2015 9:31 am (PDT) . Posted by:

"Randy Harmelink" rharmelink

Without a detailed look at what goes into the calculations, it would be
hard to judge one better than the other.

When I look at the Piotroski computation on Portfolio123, I find a score of
7 for both OSIS and IIVI.

When I get some time, I'll try comparing the data and calculations from the
three sources.

But if you are backtesting, have you considered Portfolio123? It's not
cheap, but it does have point-in-time data for backtesting. As you noticed,
when AdvFN put up the revised quarterly data, things changed. In real life,
you don't have the ability to use revised data. You have to use what was
available at the given point-in-time.

On Thu, Jul 2, 2015 at 8:48 AM, defelradar@yahoo.com [smf_addin] <
smf_addin@yahoogroups.com> wrote:

> which would you say is more accurate the P-Scores you calculate or what
> GuruFocus comes up with?
>
> The reason I ask is two stocks I have recently bought (OSIS and IIVI)
> showed P-Scores of 9 while GuruFocus has them at 7.
>
> I think you remarked in your earlier post how it was odd that gurufocus
> had a different score. I do prefer the quarterly based calculation that it
> looks like you do for the P-Score
>
>
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