Soitec stock breaks through its €123 support, at the bottom of the SBF 120
The Isère-based semiconductor substrate manufacturer extends its profit-taking phase in a declining Paris market. After breaking through a closely watched threshold during the session, the stock barely recovers it, but the decline for the week remains significant.
A €123 support broken through then recovered, with an RSI at 38.6
The Soitec stock loses 4.05% to €123.25 during the session. It broke through its €123 support down to a low of €120.55, before moving back above the threshold, just barely. The stock is down 20.23% over seven days and finds itself below its MA20 (gap of 17.93%) as well as its MA50 (gap of 8.85%), while the MA200 remains 24.22% below the price. The RSI at 38.63 reflects a decline that accelerated this week without tipping into oversold territory.
Among SBF 120 values, Soitec occupies the second-to-last place of the session, just ahead of Solvay. This movement extends the correction initiated earlier in the month: the stock had already slipped below its MA50 on Monday. It nevertheless maintains a gain of 41.12% over three months, following a surge of 225.5% over one year.
A Paris market under pressure, between French debt and doubts about AI
The CAC 40 is down 0.66% and the SBF 120 down 0.69% at midday, while the 10-year OAT yield reached 4.85% on October 19, according to the Banque de France. European stock exchanges are declining in a climate of budget tensions in France, a few days before Moody's examination of the country's rating, scheduled for October 23. The European technology sector is also retreating, as investors question the profitability of investments dedicated to artificial intelligence.
On the valuation side, the consensus of analysts surveyed shows a P/E ratio of approximately 155.7 times current fiscal year earnings and 34.2 times next fiscal year earnings. The group also announced on July 29, 2026 a share buyback program of €358 million. The next benchmark to monitor on the chart remains the €123 zone, now tested on the downside then recovered during the session.
