Normally the linear chart of a stock is drawn based on the closing value. However, it may be interesting to display a calculated stock curve on a value that is different from the one at closure, for example, it may be interesting to complement the standard chart with a chart calculated on the minimum values of each trading date.
"Other stock values" gives you the possibility to perform this operation, choosing whether the new chart should be calculated on the Maximum values, the Minimum values, the Opening, the Closing or the Volumes.