Onsemi Amends Synaptics Merger Agreement at $5.7 Billion
Onsemi amended its merger agreement with Synaptics, valuing the deal at $5.7 billion. The announcement was made on October 1, 2026, with Onsemi's stock showing a 5-day change of +4.18% and a year-to-date change of +9.47%.
How this was made
The 30-second read
Why it matters
The amendment may adjust valuation metrics and timing, prompting traders to reassess positions in both stocks.
Market read
M&A amendment for a multi‑billion‑dollar deal is material for both stocks and the broader semiconductor sector.
What to watch
Regulatory review timelines and integration risk are not detailed in the amendment.
Background
Onsemi and Synaptics previously announced a $5.7 billion merger; the current article reports an amendment to that agreement.
Ticker impact
Synaptics is the target of Onsemi's amended $5.7 billion merger agreement, with revised terms now public.
possible slight upside if amendment improves deal premium
Target companies react to amendment news; investors will price in any perceived benefit.
Market effects
The semiconductor M&A landscape may see increased activity as the deal signals consolidation.
U.S. tech sector could experience modest ripple effects.
Limited to investors tracking large‑cap semiconductor deals.
Counterpoint
Amendments could signal underlying deal difficulties, suggesting a potential downside.
Key entities
- CompanyOnsemi
US semiconductor manufacturer, ticker ON.
- CompanySynaptics
US touch‑interface technology firm, ticker SYNA.

