|
PureBytes Links
Trading Reference Links
|
Jim Kerwin writes:
> To those of you who download 9500 symbols and decided to reduce... Why did
> you decide to reduce the collection... Was it time consuming or was it a
> space issue...
I don't use the same data feed that the others are talking about, but my
vendor provides well over 20,000 end of day data points per day. I found that
a LOT of them don't trade very much (if at all), and I wasn't interested in
them anyway.
I can tell you the steps I used to accomplish all this, but the pertinent bit
is of the 20,000+ symbols my data vendor provides, I filter it down to about
2600. My criteria was the stock needed to have an average close price of at
least $12 over the last 30 days or so, and had to have an average volume of
25,000 shares traded per day. I figure that I'll re-cull the list every
quarter or so.
Even with 2600 tickers, I can *just* barely keep up with the system testing
required for the systems I'm looking at. Currently I'm testing about 5-6
different systems (paper trading), and on a '486 (albeit a faster one;
120Mhz), I spend a good hour or so every night going over things.
For me, the issue was the time involved.
--
========================================================================
Hi! I can't remember your name either
http://www.unixgeek.com/cgi-bin/motd.pl - PGP email preferred
|