Largest Positive Opening Gaps for PLUG

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

Using the 12 largest gap-up moves over the last 3 years in PLUG stock, the average move was +18.2% with the single largest opening gap of +68.5% occurring on 14-May-2024. Following the opening, PLUG tended to drift lower to the closing price 58% of the time for an average loss of -2.1%. The following day, PLUG stock price averaged -1.0% losses, with down moves exceeding up moves. The stock was down 75% of the time in that period one day after these significant gaps. Earnings dates have been excluded from this analysis.

Catalysts

10 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 +23.4% on 3-Oct-2025, while the biggest drop from the open to the low was -29.8% on 14-May-2024. On average, the PLUG stock price gain from the opening price to the highest point of the day was +10.0%, and the average drop to the lowest point was -9.8%.

Day Drift Open-to-Close

The best performance in PLUG stock price from opening price to closing price (referred to as the "drift" for the day) was on 3-Oct-2025 for a +19.1% gain after the stock gapped up +13.1% at the open. The worst worst return from the opening price to the closing price was on 14-May-2024 when the stock lost -29.4% after the stock gapped up +68.5%. Overall in the 12 available observations, the stock drifted lower 58% of the time for an average loss of -2.1%.