Onsemi and Synaptics Switch to a $123-a-Share All-Cash Deal After Rival Bid; Stated Value Is $5.7 Billion, vs. $7 Billion in June
The amended merger replaces a fixed stock swap with cash, and the two headline values measure different things, so whether Synaptics shareholders now get more or less depends on how the old deal is valued.
A Chip Deal Gets Cheaper and More Expensive at the Same Time
Onsemi's buyout of Synaptics is now worth $5.7 billion. It's also worth more than the $7 billion deal it replaced. Both of those sentences are true, and the gap between them is the whole story.
On October 1, 2026, the two chipmakers signed an amended merger agreement, tearing up the all-stock deal they'd struck on June 25 and replacing it with straight cash[1][2]. Synaptics shareholders will now get $123 for every share they own, no stock, no waiting to see what onsemi's price does[1][3]. The companies describe that as roughly $5.7 billion in total value. Back in June, they'd described the old deal as worth about $7 billion[1][8].
Headline writers took that drop and ran in opposite directions. Investing.com and StreetInsider both say onsemi "cut" the price[3][5]. Finimize says onsemi "sweetened" the deal, and GuruFocus says the cash was "raised"[7][2]. They can't all be right about the direction of a single number — because they're not describing a single number at all.
Why $7 Billion and $5.7 Billion Aren't the Same Kind of Number
The June deal was all-stock. Each Synaptics share would turn into 1.350 shares of onsemi, at a fixed ratio[8]. That matters because a fixed ratio doesn't lock in a dollar amount — it locks in a trade. Whatever onsemi's stock was worth on the day the deal closed, that's what Synaptics holders would get, for better or worse.
The $7 billion figure was calculated using onsemi's stock price back in June[8]. If onsemi's shares had fallen by the time the deal closed, Synaptics holders would have ended up with something worth less than $7 billion, through no fault of either company. If onsemi's shares had risen, holders would have ended up with more. Nobody could know the real number until closing day.
The October deal removes that uncertainty entirely. $123 in cash is $123 in cash, regardless of what any stock does afterward[1][2]. Onsemi calls this "value certainty," and in a narrow sense that's accurate: the number is fixed now in a way it never was before[2]. Whether $5.7 billion in locked-in cash beats an unlockable $7 billion in moving stock is a real question — and the research behind this piece couldn't pin down onsemi's exact share price on October 1 to answer it precisely[research gap noted in the sourcing].
One clue came from the market itself. After the amendment was announced, Synaptics shares jumped between 12% and 15% in after-hours trading, and onsemi's shares rose more than 5%[6][9]. Investors, at least in that first evening, treated the new terms as good news for both companies rather than a worse deal being forced on anyone.
The Rival Nobody Will Name
The amendment didn't happen in a vacuum. On September 2, Synaptics received an unsolicited offer from another company, described only as a "strategic" bidder, meaning a rival chipmaker or similar operator rather than a private equity fund[5][6]. That bidder later revised its offer. A special committee of Synaptics' independent directors reviewed the new version and judged it a "Superior Proposal," a formal label that matters under the merger agreement[5][6].
That label triggers specific obligations. Once a board calls a rival bid superior, the original buyer typically gets a chance to respond before the target can walk away[5]. Onsemi used that window to rework its offer. Afterward, the Synaptics board decided the amended cash deal beat the rival bid after all, and the unnamed bidder is still unnamed in every source this reporting could find[5][6].
Staying in this deal wasn't free for Synaptics. If its board ever does decide to take a better offer from someone else, it owes onsemi a $235 million termination fee[10]. That fee is standard in merger agreements, but it's also a real number: it raises the bar for how much better a rival bid has to be before switching makes sense.
What Onsemi Buys, and What It Gives Up, by Paying Cash
Paying in cash instead of stock changes what onsemi itself gives up. The original stock deal would have required onsemi to issue up to roughly 61 million new shares[13]. Every new share issued splits the company's future profits among more owners, a dilution that can drag down earnings per share for existing shareholders.
By switching to cash, onsemi avoids that dilution. In its place, it's taking on debt: cash on hand plus a committed loan from Morgan Stanley[5][11]. Onsemi says the deal will add to its adjusted profit figures right away, and that it's found savings beyond the $200 million a year it had already promised in June, including plans to eventually make Synaptics' chips in its own factories[2][9].
There's a tax wrinkle buried in the structural switch, too. The June deal was built as a Section 368 reorganization under the tax code, a structure that generally lets shareholders swap stock for stock without owing tax until they eventually sell the new shares[2]. A cash buyout is usually treated as a straight sale, which means many Synaptics holders will likely owe capital-gains tax once the deal closes[2]. That's a real cost set against the certainty cash provides — holders get a fixed number, but they may have to hand some of it to the IRS sooner than they would have under the old plan.
A Press Release Built for Disagreement
None of this resolved on its own, and the coverage split along fairly predictable lines. U.S. markets-focused trade outlets, the kind that live on deal headlines, leaned toward "cuts," comparing the new cash figure directly against the old stock figure without flagging that one was a snapshot of a moving target and the other is fixed[3][5]. Retail-investor outlets like Finimize leaned the other way, calling the move a "sweetener," while GuruFocus's "raised" doesn't quite hold up on its own terms, since the June deal had no cash component to raise in the first place[7][2].
Taiwan's Digitimes, a trade publication read by people who track chip supply chains rather than stock swings, used the plainest verb available: onsemi "revises" the deal[4]. No major U.S. right-leaning or left-leaning outlets like Fox News, the New York Times, or the Washington Post covered this story at all, which fits a deal with no obvious partisan hook. The clearest fact in the entire pile of coverage might be the simplest one: both stocks went up after the announcement, which is not what you'd expect if either side had just lost[6][9].
The deal still has to clear a Synaptics shareholder vote and regulators outside the U.S., with closing expected by mid-2027[5][9]. The unnamed rival bidder hasn't said whether it's done. At $235 million to walk away, the next move, if there is one, will cost somebody something to make[10].
Summary
On Oct. 1, 2026, chipmakers onsemi and Synaptics amended the merger they first signed on June 25. The original deal was all-stock: each Synaptics share would become 1.350 onsemi shares, and the companies put the deal at about $7 billion in enterprise value[1][8]. The new deal pays $123 in cash per Synaptics share. The companies say that comes to about $5.7 billion in aggregate value[1][3]. Onsemi will pay with cash on hand and committed loans from Morgan Stanley[5].
The change followed a rival offer. On Sept. 2, an unnamed 'strategic' bidder, meaning another operating company rather than a buyout fund, made an unsolicited, non-binding offer for Synaptics. The bidder later revised it. A special committee of Synaptics' independent directors judged the revised offer a 'Superior Proposal,' which gave onsemi the chance to respond. After more talks, the board decided that the rival bid no longer beat onsemi's amended terms[5][6].
The main dispute is over how to describe the change. Some outlets say onsemi 'cut' the price, comparing $5.7 billion with $7 billion[3][12]. Others say onsemi 'sweetened' the deal or 'raised' it[7][2]. Both readings can be argued because the two figures are not the same measure. In a fixed-ratio stock deal, what each Synaptics share is worth moves up and down with onsemi's stock price. The $7 billion figure is enterprise value, which includes debt, at June prices. The $5.7 billion figure is an 'aggregate value' for the cash deal[1][8]. The market reaction points away from a simple cut: Synaptics shares rose 12% to 15% after hours, and onsemi shares rose more than 5%[6][9].
The Event
On Oct. 1, 2026, onsemi and Synaptics signed an Amended and Restated Agreement and Plan of Merger. It replaces the all-stock merger they signed on June 25, 2026, with a payment of $123 in cash per Synaptics share[1][2]. The companies put the new deal's value at about $5.7 billion, compared with about $7 billion for the earlier agreement[1][3]. The amendment came after Synaptics received an unsolicited competing proposal from an unnamed strategic party on Sept. 2[5][6].
Undisputed Facts
- The June 25, 2026 agreement was all-stock, with a fixed exchange ratio of 1.350 onsemi shares per Synaptics share. It was described as about $7 billion in total enterprise value and a premium of about 19% based on 10-day average prices[8].
- Under the Oct. 1 amendment, Synaptics shareholders would receive $123 per share in cash, without interest. The companies put the aggregate value at about $5.7 billion[1][3].
- On Sept. 2, 2026, an unnamed strategic bidder made an unsolicited, non-binding offer. A special committee of independent directors judged a revised version of that offer a 'Superior Proposal' before onsemi amended its terms[5][6].
- Onsemi will finance the deal with cash on hand and committed debt financing from Morgan Stanley[5][11].
- The amended deal is no longer structured as a reorganization under Section 368 of the Internal Revenue Code[2].
- U.S. antitrust clearance under the Hart-Scott-Rodino Act has been obtained. The deal still needs approval from Synaptics shareholders and other regulators, and it is expected to close by mid-2027[5][9].
- After the announcement, Synaptics shares rose about 12% to 15% and onsemi shares rose more than 5% in after-hours trading[6][9].
- Under the merger agreement, Synaptics would owe onsemi a $235 million termination fee in certain cases, including if Synaptics ends the deal to accept a Superior Proposal[10].
The Pressure
Strip away the moralizing and blame. What structural realities persist regardless of which narrative wins?
- Fixed-ratio stock risk
- In the June deal, Synaptics holders were paid in onsemi shares at a fixed ratio of 1.350, so their payout rose or fell with onsemi's stock[8]. Cash at $123 removes that risk. That is why 'value' figures from June and October are hard to compare directly[1].
- Competition and the board's legal duty
- Once the special committee called the rival's revised bid a 'Superior Proposal,' onsemi had to improve its terms or risk losing the deal. Synaptics would have had to pay onsemi a $235 million fee to switch[5][10].
- Dilution vs. debt
- Onsemi swapped issuing up to about 61 million new shares for borrowing from Morgan Stanley[13][5]. Shareholders often prefer that trade when they expect the deal to add to earnings[2].
Material realityEach Synaptics share is now set to become $123 in cash, subject to a shareholder vote and regulators outside the U.S., with closing expected by mid-2027[1][9]. Because the cash deal is a taxable sale, many holders will likely owe capital-gains tax at closing[2]. Onsemi will carry new debt in place of new shares[5]. The rival bidder is still unnamed and could return, but it would face a $235 million break fee[10]. The research for this piece did not reliably establish onsemi's share price just before the amendment, so it cannot say exactly what the old stock deal was worth per share on Oct. 1.
Narrative as a weaponThe companies shape the story with phrases like 'value certainty' and 'immediately accretive' (adding to earnings per share), while leaving the $7 billion vs. $5.7 billion comparison for others to explain[1][2]. Headline writers then split. Some read the drop in headline value as a 'cut'[3][12]. Others read the switch to cash as a 'sweetener'[7]. Neither group explained that one figure was June enterprise value for a floating stock deal and the other is aggregate value for a fixed cash price. The after-hours rise in both stocks is the clearest market signal, though one evening's trading is not a verdict[6][9].
How Each Side Sees It
Each major actor’s view — how it frames things, its underlying incentive, and how it’s materially affected. Tap a side to read it.
Frames it asOnsemi argues that cash gives Synaptics holders 'value certainty.' They know exactly what they will get, whatever chip stocks do before the deal closes[2]. It also says the deal will add to its non-GAAP earnings per share right away. Non-GAAP figures leave out one-time costs such as deal expenses, so this is the company's preferred measure of underlying profit[2]. Onsemi says it has found savings beyond the $200 million a year it promised in June, including making Synaptics' chips in onsemi's own factories after the first 18 months[9].
WhyOnsemi wants to keep the deal away from a rival bidder without giving up its plan. Paying cash also means it does not issue new shares. Its registration filing for the stock deal covered up to about 61 million new onsemi shares. Issuing those would have split future profits among more shares, which is called 'dilution'[13].
Impact on themOnsemi will take on new debt from Morgan Stanley in place of issuing stock[5]. Its shares rose more than 5% after hours, which suggests investors preferred cash and debt to new shares[9].
Frames it asThe board says it used the rival bid as leverage, the way a seller should. It said the bid was superior, which pushed onsemi to improve its terms. It then judged that the amended deal beats the rival offer[5][6]. Fixed cash takes away the risk that a drop in onsemi's stock shrinks what holders receive[2].
WhyThe directors have a legal duty to get the best value they reasonably can for shareholders. Under the agreement, they can switch to a better bid only if they pay onsemi's $235 million break fee[10].
Impact on themThe board avoids a contested sale to an unnamed bidder. The deal now depends on Synaptics shareholders voting for the cash terms[9].
Frames it asFrom a holder's view, the $123 is the number that matters. A stock deal's 'value' moves with the buyer's stock, so the June $7 billion headline was never a guaranteed payout[8]. The 12% to 15% after-hours jump in Synaptics shares suggests traders saw $123 as worth more than the stock deal at that moment[6][9]. Still, a holder could argue that the switch has a cost. The old deal was a Section 368 reorganization, which generally lets holders swap shares without owing tax until they sell the new shares. A cash deal is generally a taxable sale, so holders may owe capital-gains tax at closing[2].
WhyHolders want the highest certain payout. Some may want to know whether the rival bidder would have paid more.
Impact on themHolders get fixed cash in place of onsemi stock. Many will owe taxes sooner, and they give up any share of onsemi's future gains[2].
Frames it asIts only public footprint is that its revised offer was once judged a 'Superior Proposal.' That suggests it was willing to pay more than onsemi's June terms were then worth[5].
WhyIt wanted Synaptics' technology. It may still bid again, though it would have to beat the amended terms and cover the $235 million break fee[10].
Impact on themPublic filings and coverage I found do not name it, so readers cannot judge its offer or financing[5].
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The Bias Ledger average rating 4.3
The same story, as framed by outlets across the spectrum, ordered least to most biased. The bias score (1 = straight, 10 = heavily spun) is an AI assessment of that framing — click an outlet to see its track record. The tell is the word choice or omission that reveals the angle.
| Outlet | Vantage | Bias | How they frame it | The tell |
|---|---|---|---|---|
| Digitimes | Taiwanese tech supply-chain trade press | 2 | Onsemi revises Synaptics takeover deal after rival bid | The neutral verb 'revises' avoids picking a direction. Its focus on financing and competition reflects an Asian supply-chain readership. |
| Benzinga | U.S. center (trader-focused) | 3 | Synaptics Stock is Trending: SYNA Jumps 15% After Hours on Amended Merger Deal With ON Semiconductor | It leads with the stock move, not a value judgment. That is useful context the 'cut' headlines leave out, though the framing aims at traders. |
| GuruFocus | U.S. investor-data site | 4 | ON Semiconductor (ON) Amends Synaptics Merger Agreement: Cash Consideration Raised to $123 Per Share | 'Raised' is wrong on its own terms. The June deal had no cash part, so cash could not be 'raised.' |
| Investing.com | Global markets aggregator (Israel-based) | 5 | onsemi cuts Synaptics acquisition price to $5.7 billion | 'Cuts price' compares an equity-style cash figure with a June enterprise-value figure for a stock deal as if they were the same measure. A sister story from the same outlet says shares of both companies 'soar.' |
| StreetInsider | U.S. center (markets wire) | 5 | onsemi cuts Synaptics deal price to $5.7B after rival bid | The 'cut... after rival bid' pairing implies a strange sequence, a lower price in response to competition, without saying the two values measure different things. |
| Finimize | U.K./U.S. retail-investor newsletter | 5 | ON Semiconductor Sweetened Its Synaptics Deal After A Rival Bid | 'Sweetened' asserts the opposite direction from 'cut' and drops the $5.7B-vs-$7B comparison from the headline. |
| Startup Fortune | U.S. center (tech/business blog) | 6 | Onsemi cuts its Synaptics offer to 5.7 billion dollars in cash after a rival bidder showed up | 'Cuts its offer' and the casual 'showed up' make onsemi the aggressor and treat the headline-value drop as a cut to holders. |
References
- Synaptics Form 8-K Exhibit 99.1: onsemi and Synaptics Announce Revised Merger Agreement — U.S. SEC (company filing) · Primary source; joint company press release, written in the companies' interest
- ON Semiconductor (ON) Amends Synaptics Merger Agreement: Cash Consideration Raised to $123 Per Share — GuruFocus · U.S. subscription investor-data site; summarizes filings
- onsemi cuts Synaptics acquisition price to $5.7 billion — Investing.com · Ad-funded global markets aggregator (Israel-based)
- Onsemi revises Synaptics takeover deal after rival bid — Digitimes · Taiwanese commercial trade publication covering the tech supply chain
- onsemi cuts Synaptics deal price to $5.7B after rival bid — StreetInsider · U.S. subscription markets-news wire
- Synaptics Stock is Trending: SYNA Jumps 15% After Hours on Amended Merger Deal With ON Semiconductor — Benzinga · U.S. ad- and subscription-funded trader news
- ON Semiconductor Sweetened Its Synaptics Deal After A Rival Bid — Finimize · U.K.-founded retail-investor newsletter/app
- Synaptics Form 425 Exhibit 99.1: onsemi to Acquire Synaptics (June 25, 2026) — U.S. SEC (company filing) · Primary source; deal-promotion communication by the companies
- Onsemi revises Synaptics deal to $123/sh all-cash, shares of both soar — Investing.com · Ad-funded global markets aggregator (Israel-based)
- Synaptics: Upon Termination Of Merger Under Specified Circumstances, Co To Pay Onsemi Termination Fee Of $235 Million - SEC Filing — Reuters · International wire service; commercial, Thomson Reuters-owned
- onsemi Restructures Synaptics Acquisition into All-Cash Deal — TipRanks · U.S./Israeli investor-data platform; auto-summaries of filings
- Onsemi cuts its Synaptics offer to 5.7 billion dollars in cash after a rival bidder showed up — Startup Fortune · Independent ad-funded tech/business blog
- ON Semiconductor to issue up to 61M shares for Synaptics (S-4 summary) — StockTitan · Commercial SEC-filing summary site