Onsemi revises Synaptics deal to $123/sh all-cash, shares of both soar
Onsemi and Synaptics revised their merger agreement to an all-cash deal at $123 per share, valuing the transaction at $5.7B. Shares of ON and SYNA rose 5.7% and 12.4% in after-hours trading, respectively. The deal is expected to be accretive to onsemi's earnings and is set to close by mid-2027, pending approvals.
How this was made
The 30-second read
Why it matters
The amendment provides a clearer valuation and immediate premium, prompting strong price reactions for both stocks.
Market read
The revised $5.7 billion cash acquisition is a material M&A event that moved both stocks sharply, offering traders a clear entry point.
What to watch
Potential regulatory scrutiny in other jurisdictions could delay closing.
Background
Onsemi and Synaptics had previously agreed to an all‑stock merger; the amendment to an all‑cash deal changes the transaction economics.
Ticker impact
Synaptics agreed to be acquired by Onsemi for $123 per share in cash, sending SYNA shares up 12.4% after the announcement.
likely upward pressure as investors price in the premium cash consideration
A 12% post‑announcement rally reflects strong market approval of the deal terms.
Market effects
Consolidation in the semiconductor and touch‑sensor markets may pressure peers.
U.S. semiconductor sector likely to see a modest lift.
The deal underscores continued M&A activity in the global tech hardware space.
Counterpoint
Some investors may worry about Onsemi's cash outlay and integration risk.
Key entities
- CompanyOnsemi
U.S. semiconductor manufacturer (ticker ON).
- CompanySynaptics
Touch‑sensor and human‑interface solutions provider (ticker SYNA).

