May 6, 2014 (Chinavestor) Notice how the "theoretical high" price changed from $636.7 to $647.1 in just one day for Apple Inc. (NASDAQ:AAPL). This means that Apple Inc. is considered overbought @ $647.1 now.
The jump from $636.7 to $647.1 in one day is really just a reflection of how long it takes technical indicators to catch up with sudden price changes. In this case Apple Inc. (NASDAQ:AAPL) was trading $524 before the earnings release on April 23. The stock was as high as $599 five days later. It took another three days for the overbought indicator get theoretical high prices right.
All told, it took eight day for the overbought indicator to catch up with Apple's sudden price increase.
The same indicator a day before. See How Apple's OB or overbought price is at $636.7 below.