Of the 71 times AAPL triggers a sell on my RSI indicator (the magenta arrow at the bottom of the chart), the stock drops 97.143% of the time in the following 25 trading days. During 37% of the successful drops, the stock moves upward for 1-4 more days after the signal occurs in what I call the delay period.
What qualifies as a successful drop? The sell signal was triggered based on the closing price of AAPL stock on July 10, 2024 at 232.98. This means 97% of the time the stock will move below this closing price in the near-term. 2.85% of the time, the stock does not drop below this price over the following 25 trading days. The stock has always dropped below the signal closing price by at least 0.266% over the next 100 trading days.
On the chart above, the red boxes at the top are the delay zones of interest. The larger red box contains 100% of all delayed movement. The smaller box contains the stock's top or peak of the delay for 50% of the occasions. The same holds true for the two large green target boxes on the bottom. The final downward movement bottoms in the smaller green box 50% of the time, while the much larger green box contains bottoms or valleys for all downward movement.
This delay period of potential continued upward movement has historically had a maximum 3% gain before the stock eventually dropped. Regarding the bottom of the drop. Over the next 25 bars, it can occur on any day in the range with the median bottom occurring by day 8. 75% of the bottoms have occurred before day 18. The stock drops a minim of 0.266%, and median of 5.021%. 25% of the bottoms are no lower than 2.152%, while 75% of the drops are 8.3% or less.
The four shallowest drops over the next 25 days have been 0.266% (September 2010), 0.312% (February 2017), 0.827% (March 2019), and, 0.868% (August 2020) while the four deepest drops have been 63.23% (August 2000), 26.58% (December 1999), 26.51% (January 2006), and 24.80% (September 1999). The most recent double-digit percentage drop was 15% in April 2019. All shallow drops occurred in the most recent strong bull market, while the largest drops were part of the dot-com bubble burst.
While this current potential drop will likely avoid the sharper end of sell-offs, it is always interesting to see the strength and accuracy of signals. Historical movement is not indicative of future movement, but it is good to have as a data point.