All you need to do to fix your candle wicks in think or swim is right click on the bar in question and click on the firs option to correct this bar. From there you just adjust the values as necessary. We recommend using Yahoo Finance to get historical data instead of scrolling back through hundreds and hundreds of candles worth of data in the platform.
Knowing how to do this is critical for evaluating daily charts and determining if there are any gaps in play. As noted in the last SPY example, there have been multiple times where a false print has skewed the daily technical chart to show that a gap has been filled. We know however that that wasn’t the case and can correct the bar with this method to make sure it is visible.
A quick fix for wicks!