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There is not a separate list of added / deleted stocks -
Yahoo just updates their site on the fly. You would need to build a new list and
compare it with those in the database. There is a trail of Yahoo pages that
contains what they consider to be the stocks avail in the US - grouped by sector
/ industry. These pages have to be scraped to get the tickers and names.
Then a problem arises when you go to down load quotes for the entire list
that you've built by scraping - Yahoo doesn't have quotes for all of them and
some have even had their tickers changed but the pages haven't been updated
yet. Plus, you also get pink sheet stocks and other "stuff". The
indexes, etfs, mutual funds, etc are all on their own pages and would have to be
scraped also.
I've done some of this in a program I wrote several years
ago - it even updates the quotes and can be scheduled via the scheduler.
It will retireve historical, current and fundamental data. What it doesn't
do at present is detect those stocks that have no quotes or that have ceased
trading - those that give an error msg when you try to use Amiquote. It
also does NOT update the database - it just builds them and updates the quotes.
I stopped working on it because I thought TJ was going to address this and
decided not put any more of my time into it.
I can be talked into finishing it but I won't do it for
free - I done quite a few free programs for AB and won't do that any
more.
Soooo - what's a price that people are willing to pay and
and how many would be interested. If theres not that much interest then I
won't bother.
d
Hi Ronald,
You say:
... DOWNLOAD ALL OF THE SYMBOLS THAT "YAHOO" has ADDED in
their "YAHOO" database of STOCK SYMBOLS AND PRICES, VOL ,etc.
DO YOU KNOW WHERE THAT "ADDED" LIST IS
LOCATED?
If YAHOO discontinues carrying a symbol, then their NEW CURRENT
list of symbols will...NOT...
DO YOU KNOW WHERE THAT "NEW CURRENT" LIST IS
LOCATED? AND WHAT IS THE "NEW CURRENT" LIST.
I'M CURIOUS IF IT'S POSSIBLE TO DOWNLOAD THE
ENTIRE LIST OF YAHOO STOCKS SOMEHOW.
Thanks
----- Original Message -----
Sent: Tuesday, June 03, 2008 5:27
PM
Subject: Re: [amibroker] JimSwindle>
US STOCKS DATABASE UPDATE
Cs, he HAS been doing it for free.
AB does NOT KNOW which symbols are current.
That is why there exists a need DOWNLOAD ALL OF THE SYMBOLS THAT
"YAHOO" has ADDED in their "YAHOO" database of STOCK SYMBOLS AND
PRICES, VOL ,etc.
If YAHOO discontinues carrying a symbol, then their NEW CURRENT
list of symbols will , NOT have it anymore, and it will have been purged
from your AB database of SYMBOLS in the AB US STOCKS FOLDER. Ron
D
----- Original Message -----
Sent: Tuesday, June 03, 2008 4:03
PM
Subject: Re: [amibroker]
JimSwindle> US STOCKS DATABASE UPDATE
Aha, I thought Jim was doing this for
free. But in any case, how does AB determine which stocks are
current and should be on the list? Yahoo has almost 40,000 tickers;
who determines which ones go into the US STOCK
SYMBOL list?
Thanks
----- Original Message -----
Sent: Tuesday, June 03, 2008 4:17
PM
Subject: Re: [amibroker]
JimSwindle> US STOCKS DATABASE UPDATE
This origional post was an inquiry asking when Jim Swindle would
place a LATER than >JAN/4/2008 UPDATED LIST OF US STOCK SYMBOLS
on his UPDATE website.
Jim was paid to create this updating UPDATING software, so he is
not at liberty to simply give it away to Amibroker users.
Yes, I would love to help JIM, but I can't think of anything I can
do to assist writing code FOR a NEW version of this updating
software.
I do recall that Dingo and Jim discussed the possibility of
a Joint effort once, BUT I DON'T THINK IT WENT ANYWHERE.
HERE IS MORE INFORMATION>>Jim Swindle's US STOCKS
DATABASE UPDATE SITE is simply an updated list of the
most recent SYMBOLS in the US STOCKS FOLDER within
Amibroker.
When you run a download from this site, it installs the MORE RECENT
list of the symbols over the OLDER list of
symbols.
This process of UPDATING the symbols must be followed by
a HISTORICAL download of all of the TICKER data for as far back as you
want to have in your database.
=======================================================================================
----- Original Message -----
Sent: Tuesday, June 03, 2008 1:46
PM
Subject: Re: [amibroker]
JimSwindle> US STOCKS DATABASE UPDATE
Perhaps we should try to help Jim out a
bit. What features would we want to see in such a stocks
database?
Thanks
----- Original Message -----
Sent: Tuesday, June 03, 2008
9:21 AM
Subject: [amibroker]
JimSwindle> US STOCKS DATABASE UPDATE
Has anyone heard from Jim regarding when a later update will be
available?
This link to Jim Swindle's US STOCKS DATABASE site shows
that it was last udated on Jan 4, 2008.
I also recall that Jim was planning to create a method so that
each of us could run a LATEST TICKER symbol update an any
time.
We all are grateful to Jim for having done
this. Ron D
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