There have been numerous symbols (stocks and ETFs) in wealthData since April 23 that have went to zero and then back to normal in prices resulting in backtest spikes (found some of these during optimization runs). Can these be fixed? I could not successfully clean them up in data manager unfortunately.
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On maybe 2 occasions, a process ran overtime and inserted some zeroes before the market open. These auto-correct as soon as the market open, but unfortunately, you need to take action in WL7/8 to correct it if you happened to download Wealth-Data precisely at the wrong time before the market opened.
Data Manager > Hist Data Providers > Wealth-Data > right-click, Delete Local Files
Data Manager > Hist Data Providers > Wealth-Data > right-click, Delete Local Files
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