Hi clip. You wrote - I saw a specific indicator shown as a "top" price label on a stock, and then, a week or so later when the stock broke through to new highs, the previous "label" had vanished
The price labels are simply price labels attached to the chart at the point where the stock has reached a high or low point. Usually, they are not considered indicators of anything other than that - a high or low point.
So, when the stock continues to a higher high or lower low the price label attaches to this new point as it has become the actual high or low for the current trend.
I don't know if that answers your question or helps, but that is why the last high or low label on the chart can change.
Cush
