We had another data hiccup that we need to correct. When we finish, it will be one of those good opportunities to refresh your Wealth-Data cache. Stand by...
Rename
Wealth-Data is ready for 2025-04-04.
Check your closing prices. If one of them looks wrong, at a minimum you should truncate W-D bars after 2025-04-03. Again, a good option to perform periodically is to refresh Wealth-Data completely by deleting the local cache and then just run your backtest to refresh it.
And for good measure, refresh Wealth-Data Events too.
Check your closing prices. If one of them looks wrong, at a minimum you should truncate W-D bars after 2025-04-03. Again, a good option to perform periodically is to refresh Wealth-Data completely by deleting the local cache and then just run your backtest to refresh it.
And for good measure, refresh Wealth-Data Events too.
While I'm at it, I just noticed a really good example in yesterday's data of why Wealth-Data is better to use for backtesting. Look at the opening price for PFG yesterday. Every other EOD provider will have $80.53 as the opening price, but Wealth-Data is $76.53.
Who's right? Both are, of course, but let's see where the prices come from in the time-of-sales...
$80.53 was indeed the first full-lot trade during regular market hours, but it was just 100 shares on NYSE. PFG's primary market Nasdaq, where the market open with over 12,000 shares occurred a lot closer to where the market actually traded.
Would you have been the lucky one to sell at $80.53? (Or the unlucky one to buy it there?)
Primary market opening prices is just one of the aspects of Wealth-Data that make it best for backtesting EOD strategies. Another aspect is outlier filtering for realistic trading at the high and low of the day.
Who's right? Both are, of course, but let's see where the prices come from in the time-of-sales...
$80.53 was indeed the first full-lot trade during regular market hours, but it was just 100 shares on NYSE. PFG's primary market Nasdaq, where the market open with over 12,000 shares occurred a lot closer to where the market actually traded.
Would you have been the lucky one to sell at $80.53? (Or the unlucky one to buy it there?)
Primary market opening prices is just one of the aspects of Wealth-Data that make it best for backtesting EOD strategies. Another aspect is outlier filtering for realistic trading at the high and low of the day.
Exactly, WealthData is the best data provider. ... Couldn't you think again about adding other markets, such as the Russel 3000?
I hope everyone who caches data locally is aware that it may have to be updated.
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