Bad ticks in minute charts
It seems that over the last couple months, many charts displayed using less than 1 day bars have bad data, also known as bad “ticks”. In the past, this was often the case with futures such as GC=F, but I just tried looking at a 5 min SPY chart and it was useless to any technician with some 5 minute bars spanning over a 20% price range. These errors makes charts unusable for short term technical analysis.
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Maralyne Willox commented
Just another observation, the bad ticks show up on my mobile device (iPhone), but appear to be fine on my iOS MacBook. So maybe is a platform oriented bug.