ABB’s £4.8 Billion Rotork Bet Sinks Siemens Energy Alongside Its Rival
Published on 07/17/2026 at 08:32 | Redaktion boerse-global.de
Siemens Energy shares slid on Thursday as the fallout from ABB’s blockbuster acquisition of British automation specialist Rotork rippled through the sector. The Swiss industrial group’s decision to pay roughly $5.5 billion (€4.8 billion) for the company drew immediate criticism from analysts who called the price “steep,” even if the strategic logic — Rotork’s strong operating margins and exposure to data centre electrification — was broadly acknowledged.
ABB itself lost 3.3% on the day, falling back to its June trough. Siemens Energy gave up a further 1.8%, slipping below the €148 mark, while parent Siemens eked out a 0.4% gain. The divergent moves highlight how the ABB deal has sharpened a broader debate about valuation that has been simmering around Siemens Energy for weeks.
Barclays Flips the Script on Valuation
Even before the Rotork news broke, Barclays had downgraded Siemens Energy from Equalweight to Underweight, citing exclusively the stock’s hefty price tag. With a market capitalisation of around €130 billion, the shares trade at a price-to-earnings multiple of roughly 30 — high in absolute terms, but only half the multiple of US peer GE Vernova, which commands a P/E of 60 despite a similar growth trajectory.
Barclays’ analysts see earnings per share climbing from €4.26 in 2026 to €9.20 by 2028, supported by revenue growth from €43 billion to €57 billion over the same period. The downgrade did not take issue with the operational story; it was purely a valuation call that subsequently put pressure on GE Vernova as well.
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Hyperscaler Jitters Add to the Headwinds
The selling in Siemens Energy went beyond the ABB effect. Renewed anxiety that big cloud providers might scale back their data centre investments weighed on tech-heavy names across markets, including memory chipmaker Micron on Wall Street. For Siemens Energy, which has become one of the most closely tied German stocks to the AI infrastructure boom, any sign of a spending pullback hits hard. The stock’s recent swings have largely tracked the Nasdaq’s rhythm, and the current retreat underscores that vulnerability.
Chart watchers are eyeing a possible head-and-shoulders formation, with the neckline sitting between €137 and €140. A break below that zone could signal further downside, though the pattern is still unconfirmed.
Annual Gains Remain Intact Despite the Slump
At €146.80, Siemens Energy trades nearly 25% below its 52-week high of €195.54 touched on 24 April. The stock is also hovering just above its 200-day moving average of €143.61, a level that has offered support in recent sessions. Despite the pullback, the shares are still up roughly 20% year to date and have gained about 61% over the past twelve months.
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The core narrative around electrification and grid expansion remains unchanged, but near-term sentiment is being squeezed by the twin pressures of an expensive rival deal and renewed caution on hyperscaler spending. How Siemens Energy navigates that tension — and whether the market can look past the valuation sticker shock — will determine if the next leg of its rally can get underway.
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