Haffner Energy's Stock Soars Nearly 20%, Up +400% in Three Months
Haffner Energy's stock surged by 16.91% to €0.1590 in early afternoon trading on Wednesday, May 13, 2026. The increase brings the weekly performance to 76% and the three-month gain to a fivefold increase. However, the stock is still down 38% year-over-year.
A Rally Pushing the Stock into a Marked Overbought Zone
At €0.163, Haffner Energy's stock is significantly above the upper Bollinger Band set at €0.14, representing 117% of the band. This position above the upper band indicates a pronounced overbought signal. The RSI stands at 74, also in overbought territory. The stock is nearly double its 20-day moving average (€0.08) and well above its 50-day moving average (€0.06). This acceleration continues the movement observed at the end of April, when the stock had surged by 73% in seven days to enter an overbought zone, according to a brief published on April 28.
A Movement Backed by a Calendar of Key Announcements
Several recent announcements underpin the case. On April 22, the company announced a memorandum of understanding signed on April 16, 2026, with the Maharashtra government, JW Global Group, and The Seed Consortium Partners, involving about €15 billion in investments in India, including two projects based on its technologies. Additionally, financing has been strengthened: Haffner Energy drew its seventh and eighth tranches of convertible bonds, totaling €1.2 million, as part of the arrangement with Hanover Square Investments 1, as indicated in a brief from April 25. The session goes against the major indices, with the CAC 40 down 0.21% at 7,963.51 points and the SBF 120 falling 0.13%. The next financial calendar event is the annual results announcement on June 25, 2026.