[amibroker] Re: survival bias and lisitng

["loveyourenemynow" <loveyourenemynow@xxxxxxxx>]

Thanks Mike,Ges and Paul,

What about a collection of files containing the index components at different updates?
Thomasz provides a clever implementation with watch lists in the member area,the problem is how to get the accurate list components .. for every year or update.
Do yahoo/google report delisted stocks?

Thanks

Ly


--- In amibroker@xxxxxxxxxxxxxxx, "Paul Ho" <paul.tsho@xxx> wrote:
>
> Getting delisted stock is extremely easily, nearly data vendors provide them. But getting changes to indices components with accurate dates is not done by any data vendor as far as I know.
> 
> --- In amibroker@xxxxxxxxxxxxxxx, "Mike" <sfclimbers@> wrote:
> >
> > Assuming that you want US markets, have a look at Norgate Premium Data:
> > 
> > http://www.premiumdata.net/products/premiumdata/ushistorical.php
> > 
> > Mike
> > 
> > --- In amibroker@xxxxxxxxxxxxxxx, "loveyourenemynow" <loveyourenemynow@> wrote:
> > >
> > > Hello,
> > > 
> > > since survival bias and listing/delisting effects are very important on long term backtesting I would like to know if there is any reliable source of free data of the major world index components, with accurate listing/delisting dates.
> > > Or alternatively what is good paid service.
> > > 
> > > Thanks
> > > 
> > > Ly
> > >
> >
>




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