Data issues (huge spikes) on UK stocks.
A lot of your charts seem to have huge random spikes down and then up again. Here are some examples:
UK Stocks (daily or weekly charts):
AEMC.L, AAIF.L, AZN.L, BA.L, CPG.L, CRDA.L, ... and a lot more.
These can be verified by your team by looking at Yahoo stock CANDLE charts.
Kind Regards.
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