ON, SYNA Climb After-Hours As The $7B Stock Deal Becomes A $5.7B Cash Bid
onsemi (ON) revised its deal to acquire Synaptics (SYNA) from an all-stock to a $5.7B cash offer, citing a competing proposal. ON will pay $123 per share, up from the implied $108 value of the previous deal. Both companies' shares rose in after-hours trading.
How this was made

The 30-second read
Why it matters
The cash deal provides a clear premium to Synaptics shareholders and removes dilution concerns for onsemi, likely driving short‑term price gains for both tickers.
Market read
First‑report M&A news with sizable premium and immediate price reaction; high relevance for traders in semiconductor space.
What to watch
Potential financing costs and execution risk of bringing Synaptics production in‑house could limit upside.
Background
The article reports the first public disclosure of the revised all‑cash acquisition of Synaptics by onsemi, replacing the earlier all‑stock agreement.
Ticker impact
ON shares rose 7% in after‑hours trading after announcing the all‑cash $5.7 B acquisition of Synaptics.
upward pressure as investors price in the premium and reduced dilution risk
Deal terms are favorable, FTC cleared, and the share price already jumped on the news.
Synaptics shares jumped about 16% after‑hours as the all‑cash offer of $123 per share was announced.
upward pressure as the premium is priced in and the deal is expected to close by mid‑2027
The cash price exceeds the prior stock‑swap valuation, delivering a clear premium.
Market effects
Accelerates consolidation in the semiconductor and human‑machine interface market.
U.S. semiconductor sector likely to see modest gains as the deal signals confidence in AI‑related demand.
Sets a precedent for cash‑only tech M&A, potentially influencing cross‑border deal structures.
Counterpoint
If regulatory or integration challenges arise, the premium may be eroded and the stocks could face downside.
Key entities
- Companyonsemi
U.S. semiconductor manufacturer acquiring Synaptics for $5.7 B in cash.
- CompanySynaptics
Human‑machine interface chipmaker being acquired.