Soitec SA vs Advanced Micro Fabrication: why the prices moved differently

Weekly · monthly · quarterly news summaries, side by side in time

Soitec SA (SOI.PA)

Q3 202629 Jun – 18 Sep 2026

▲3▼2

AI demand hopes lift Soitec, then safety fears and tax hit drag it down

ZenSemi 300mm BCD-on-SOI partnership Soitec will supply Power-SOI substrates to ZenSemi for high-volume 300mm BCD-on-SOI production, targeting AI datacenters, EVs and robots. This adds a new customer and supports demand for Soitec's engineered substrates, a positive for future revenue.
New partnership directly expands demand for Soitec's core products.
Q2 revenue beat and raised guidance Soitec's Q2 revenue beat estimates by nearly 22%, and it later upgraded Q2 revenue growth guidance to around 50% year-on-year, driven by Photonics-SOI demand for AI data centers. Strong results and guidance support the stock.
Earnings beat and guidance raise are key positive fundamentals for the stock.
French tax dispute settlement Soitec agreed to settle a French tax dispute, forfeiting €320 million in tax loss carry-forwards and paying up to €60 million cash in Q3 2027. This reduces future cash tax savings and is a financial negative.
Settlement has a direct negative impact on Soitec's financials.
AI slowdown fears hit chip stocks AI leaders called for slower development, triggering a sharp sell-off in chip stocks. Soitec fell 12.6% as investors worried that slower AI buildout would cut demand for its Photonics-SOI products used in AI data centers.
This is the main negative driver this period, directly hitting Soitec's AI-linked demand outlook.
€500 million ORNANE bond issue Soitec raised €500 million in convertible bonds due 2033 at a low 0.5% coupon, with conversion price at a 55% premium. Proceeds will refinance debt and fund growth, showing investor confidence in its AI-related Photonics-SOI technology.
New financing strengthens balance sheet and signals confidence, a positive for the stock.

August 202629 Jun – 18 Sep 2026

▲3▼2

AI demand hopes lift Soitec, then safety fears and tax hit drag it down

ZenSemi 300mm BCD-on-SOI partnership Soitec will supply Power-SOI substrates to ZenSemi for high-volume 300mm BCD-on-SOI production, targeting AI datacenters, EVs and robots. This adds a new customer and supports demand for Soitec's engineered substrates, a positive for future revenue.
New partnership directly expands demand for Soitec's core products.
Q2 revenue beat and raised guidance Soitec's Q2 revenue beat estimates by nearly 22%, and it later upgraded Q2 revenue growth guidance to around 50% year-on-year, driven by Photonics-SOI demand for AI data centers. Strong results and guidance support the stock.
Earnings beat and guidance raise are key positive fundamentals for the stock.
French tax dispute settlement Soitec agreed to settle a French tax dispute, forfeiting €320 million in tax loss carry-forwards and paying up to €60 million cash in Q3 2027. This reduces future cash tax savings and is a financial negative.
Settlement has a direct negative impact on Soitec's financials.
AI slowdown fears hit chip stocks AI leaders called for slower development, triggering a sharp sell-off in chip stocks. Soitec fell 12.6% as investors worried that slower AI buildout would cut demand for its Photonics-SOI products used in AI data centers.
This is the main negative driver this period, directly hitting Soitec's AI-linked demand outlook.
€500 million ORNANE bond issue Soitec raised €500 million in convertible bonds due 2033 at a low 0.5% coupon, with conversion price at a 55% premium. Proceeds will refinance debt and fund growth, showing investor confidence in its AI-related Photonics-SOI technology.
New financing strengthens balance sheet and signals confidence, a positive for the stock.

Latest29 Jun – 18 Sep 2026

▲3▼2

AI demand hopes lift Soitec, then safety fears and tax hit drag it down

ZenSemi 300mm BCD-on-SOI partnership Soitec will supply Power-SOI substrates to ZenSemi for high-volume 300mm BCD-on-SOI production, targeting AI datacenters, EVs and robots. This adds a new customer and supports demand for Soitec's engineered substrates, a positive for future revenue.
New partnership directly expands demand for Soitec's core products.
Q2 revenue beat and raised guidance Soitec's Q2 revenue beat estimates by nearly 22%, and it later upgraded Q2 revenue growth guidance to around 50% year-on-year, driven by Photonics-SOI demand for AI data centers. Strong results and guidance support the stock.
Earnings beat and guidance raise are key positive fundamentals for the stock.
French tax dispute settlement Soitec agreed to settle a French tax dispute, forfeiting €320 million in tax loss carry-forwards and paying up to €60 million cash in Q3 2027. This reduces future cash tax savings and is a financial negative.
Settlement has a direct negative impact on Soitec's financials.
AI slowdown fears hit chip stocks AI leaders called for slower development, triggering a sharp sell-off in chip stocks. Soitec fell 12.6% as investors worried that slower AI buildout would cut demand for its Photonics-SOI products used in AI data centers.
This is the main negative driver this period, directly hitting Soitec's AI-linked demand outlook.
€500 million ORNANE bond issue Soitec raised €500 million in convertible bonds due 2033 at a low 0.5% coupon, with conversion price at a 55% premium. Proceeds will refinance debt and fund growth, showing investor confidence in its AI-related Photonics-SOI technology.
New financing strengthens balance sheet and signals confidence, a positive for the stock.

Advanced Micro Fabrication Inc (688012.CG)

Q3 202624 Jul – 5 Aug 2026

▲4

AMEC Profit Surges, Samsung/SK Hynix Test Equipment, CXMT Stake Gains

First-half profit jumps 282-311% on strong demand AMEC expects first-half net profit up 282-311% year-on-year, with revenue up 34.89% to 6.69 billion yuan. The company also plans a 3.5 billion yuan expansion of its Lingang base. This shows booming demand for its chipmaking tools and supports a higher stock price.
Directly answers why the stock is moving: strong earnings growth and capacity expansion signal robust business momentum.
Samsung and SK Hynix test AMEC equipment for China plants Samsung and SK Hynix have been testing AMEC's etching equipment for about two years, aiming to use it at their Chinese plants to avoid US export restrictions. Although Samsung denied the report, the potential endorsement from global chip giants could open a large new market for AMEC.
This is a major new demand driver that could significantly expand AMEC's customer base and revenue.
CXMT strategic placement yields paper profit AMEC participated in the strategic placement of CXMT, a domestic DRAM leader, and its stake generated a paper profit of about 736 million yuan on the first trading day. This reflects AMEC's strategic positioning in the chip supply chain and adds to its investment gains.
Shows a direct financial benefit and strategic alignment that can boost investor sentiment.
New regulations protect IC layout designs China published revised regulations for protecting integrated circuit layout designs, effective October 2026. This supports the industry's shift to high-quality development and could benefit domestic equipment makers like AMEC by fostering a more innovative and protected environment.
Regulatory support for the semiconductor industry can improve the long-term outlook for AMEC.

July 202624 Jul – 5 Aug 2026

▲4

AMEC Profit Surges, Samsung/SK Hynix Test Equipment, CXMT Stake Gains

First-half profit jumps 282-311% on strong demand AMEC expects first-half net profit up 282-311% year-on-year, with revenue up 34.89% to 6.69 billion yuan. The company also plans a 3.5 billion yuan expansion of its Lingang base. This shows booming demand for its chipmaking tools and supports a higher stock price.
Directly answers why the stock is moving: strong earnings growth and capacity expansion signal robust business momentum.
Samsung and SK Hynix test AMEC equipment for China plants Samsung and SK Hynix have been testing AMEC's etching equipment for about two years, aiming to use it at their Chinese plants to avoid US export restrictions. Although Samsung denied the report, the potential endorsement from global chip giants could open a large new market for AMEC.
This is a major new demand driver that could significantly expand AMEC's customer base and revenue.
CXMT strategic placement yields paper profit AMEC participated in the strategic placement of CXMT, a domestic DRAM leader, and its stake generated a paper profit of about 736 million yuan on the first trading day. This reflects AMEC's strategic positioning in the chip supply chain and adds to its investment gains.
Shows a direct financial benefit and strategic alignment that can boost investor sentiment.
New regulations protect IC layout designs China published revised regulations for protecting integrated circuit layout designs, effective October 2026. This supports the industry's shift to high-quality development and could benefit domestic equipment makers like AMEC by fostering a more innovative and protected environment.
Regulatory support for the semiconductor industry can improve the long-term outlook for AMEC.

Latest24 Jul – 5 Aug 2026

▲4

AMEC Profit Surges, Samsung/SK Hynix Test Equipment, CXMT Stake Gains

First-half profit jumps 282-311% on strong demand AMEC expects first-half net profit up 282-311% year-on-year, with revenue up 34.89% to 6.69 billion yuan. The company also plans a 3.5 billion yuan expansion of its Lingang base. This shows booming demand for its chipmaking tools and supports a higher stock price.
Directly answers why the stock is moving: strong earnings growth and capacity expansion signal robust business momentum.
Samsung and SK Hynix test AMEC equipment for China plants Samsung and SK Hynix have been testing AMEC's etching equipment for about two years, aiming to use it at their Chinese plants to avoid US export restrictions. Although Samsung denied the report, the potential endorsement from global chip giants could open a large new market for AMEC.
This is a major new demand driver that could significantly expand AMEC's customer base and revenue.
CXMT strategic placement yields paper profit AMEC participated in the strategic placement of CXMT, a domestic DRAM leader, and its stake generated a paper profit of about 736 million yuan on the first trading day. This reflects AMEC's strategic positioning in the chip supply chain and adds to its investment gains.
Shows a direct financial benefit and strategic alignment that can boost investor sentiment.
New regulations protect IC layout designs China published revised regulations for protecting integrated circuit layout designs, effective October 2026. This supports the industry's shift to high-quality development and could benefit domestic equipment makers like AMEC by fostering a more innovative and protected environment.
Regulatory support for the semiconductor industry can improve the long-term outlook for AMEC.