onsemi and Synaptics Revise Merger Terms Following Unsolicited Proposal

What happened

On October 1, 2026, onsemi and Synaptics announced an amended merger agreement, revising the terms originally agreed upon. The amendment follows a thorough review of an unsolicited competing proposal, indicating that Synaptics received an alternative acquisition offer. onsemi states the revised deal delivers higher shareholder value through immediate EPS accretion, suggesting the acquirer improved the financial structure of the transaction. The press release does not disclose the specific revised consideration for Synaptics shareholders, but the emphasis on onsemi accretion may imply a lower or restructured payment relative to the competing bid. For Synaptics investors, the announcement shifts the investment case from standalone fundamentals to merger arbitrage, with value now tied to the finalized deal terms and closing certainty.

Implication

Synaptics investors should treat the revised agreement as a change in the value proposition; the standalone thesis from the prior report (WAIT at $90.81) is superseded by the pending acquisition. The announcement does not specify the revised per-share consideration, so the market will await further details to assess whether Synaptics holders are receiving fair value relative to both the original offer and the unsolicited competitor bid. The emphasis on 'immediate EPS accretion' for onsemi indicates the acquirer optimized the deal economics, potentially by reducing cash or using stock, which may dilute Synaptics holders' realized value. Until the amended terms are fully disclosed, Synaptics shares may trade with a wider spread, reflecting uncertainty over the deal's completion and the possibility of further bids. Investors should closely monitor any additional disclosures from Synaptics' board regarding its fiduciary process and the competing proposal, as governance and negotiation dynamics will determine ultimate shareholder outcome.

Thesis delta

The prior DeepValue thesis rated SYNA a WAIT based on standalone fundamentals with a base value of $92 and bear/bull scenarios of $65/$115. The revised merger announcement fundamentally changes the investment thesis from a semiconductor growth story to a merger arbitrage situation, with value now determined by the acquisition terms rather than operating performance. The emphasis on onsemi's EPS accretion suggests the revised deal may undervalue Synaptics relative to the competing bid, warranting a reassessment of fair value and deal risk.