I don't think he's asking
for too much! You should emphatically demand your data vendor keeps the
data fully up-to-date with stock splits, reverse splits (consolidations),
dilutions due to de-mergers/spin-offs, capital returns, name changes, symbol
changes, code changes, listed exchange changes (eg AMEX -> NYSE)
and delistings. Without such regular maintenance your database
rapidly will become riddled with errors.
> Most data sources are a minefield of inconsistent
data filled
> with missing splits or splits where
> none have
occurred, missed distributions, etc.
This part I agree with - most data sources are very
poor.
There's a world of difference between data vendors that
live, eat and breathe accurate data and those that just go through the motions
in providing "reasonably accurate" data. The worst part is you usually
have to pay in both time and money to find it out.
Best regards,
Richard
Dale.
Norgate Investor Services
- Premium quality Stock, Futures and
Foreign Exchange Data for
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