Saint-Gobain stock rebounds but remains below its moving averages, RSI at 27
Saint-Gobain is attempting a rebound on Monday, in a CAC 40 that is advancing by approximately 1%. Despite this upturn, the stock's configuration remains highly deteriorated over longer time horizons, with a price firmly anchored below its three moving averages and selling pressure that has been extending for several weeks.
A timid rebound amid technical capitulation, RSI in extreme oversold territory
The Saint-Gobain stock gains 1.59% to €70.22 during the session, after closing Friday at €69.12. The rebound occurs as the RSI has fallen to 27, an extreme oversold level rarely reached on this security, which reflects the scale of selling pressure accumulated since mid-August. Over one month, the stock still declines 13.09%, and over twelve months the loss exceeds 25%.
The price remains below the 20-day moving average at €75.05 (a gap of 6.44%), below the 50-day moving average at €77.57 (a gap of 9.48%) and below the 200-day moving average at €79.33 (a gap of 11.48%), forming a triple moving average ceiling that weighs on any recovery attempt. The MACD remains in negative territory, with a histogram at -0.48, which confirms that the medium-term downward momentum has not yet shown any sign of inflection. The support threshold at €69.12 (Friday's closing price) now constitutes the immediate floor to defend, whereas the stock had already briefly breached this level during trading on Thursday, September 17 before recovering.
A macro and sectoral context not conducive to sustained recovery in construction materials
The macroeconomic context of this back-to-school period does not facilitate the group's recovery. The Fed, the ECB and the Bank of Japan all raised their key interest rates during the past week, in the face of sustained increases in energy prices linked to the conflict in the Middle East. This coordinated tightening keeps long-term rates at elevated levels, which mechanically weighs on the valuation of construction materials sector groups, traditionally sensitive to the cost of mortgage credit and building activity in Europe.
Brent crude declines approximately 3% during the session to $100.83 per barrel, but remains at still elevated levels that increase production and transportation costs for the sector. Furthermore, according to reviewed statements, the share buyback program conducted by Saint-Gobain (€773 million in shares repurchased over twelve months, or 2.2% of capitalization as of September 10, 2026) provides structural support to the stock without, however, having stemmed the recent downward trend. The next resistance is located at €85.44, representing a gap of more than 21% above the current price, which illustrates the extent of ground to be recovered before the technical configuration truly improves.
