Largest Positive Opening Gaps for JBL

How does JBL usually behave after a large gap-up move?

Using the 12 largest gap-up moves over the last 3 years in JBL stock, the average move was +3.4% with the single largest opening gap of +5.6% occurring on 28-Aug-2023. Following the opening, JBL tended to drift lower to the closing price 58% of the time for an average loss of -0.7%. The following day, JBL stock price averaged +2.2% gains, with up moves more frequent than down moves. The stock was up 75% of the time in that period one day after these significant gaps. Earnings dates have been excluded from this analysis.

Catalysts

8 of JBL's 12 largest moves corresponded with a large gap up in the overall market. 2 of the moves coincided with a company-issued press release.

Open-to-High and Open-to-Low

The largest percentage gain from the open to the high of the day was +4.7% on 6-Nov-2024, while the biggest drop from the open to the low was -7.5% on 20-Nov-2025. On average, the JBL stock price gain from the opening price to the highest point of the day was +1.7%, and the average drop to the lowest point was -2.2%.

Day Drift Open-to-Close

The best performance in JBL stock price from opening price to closing price (referred to as the "drift" for the day) was on 6-Nov-2024 for a +3.6% gain after the stock gapped up +3.4% at the open. The worst worst return from the opening price to the closing price was on 20-Nov-2025 when the stock lost -6.8% after the stock gapped up +3.2%. Overall in the 12 available observations, the stock drifted lower 58% of the time for an average loss of -0.7%.