SYNA · Synaptics Incorporated · Stock research

Current Thesis

no cash, no collar, ~$7B. The week to 2026-08-21 tested whether anything else is in the price and the answer was no. onsemi went from $82.66 (2026-08-14) to $74.21 (2026-08-21), a decline of 10.2%; Synaptics went from $108.63 to $97.66, a decline of 10.1%. At the 2026-08-21 onsemi close the ratio-implied value is 1.350 × $74.21 = $100.18, which puts the gross discount near 2.5%, inside the ~2.7% marked on 2026-08-14 and the ~3.3% of 2026-07-17. The S-4 also puts a longer tail on the calendar than the "mid-2027" guide: an outside date of 2027-06-25, extendable in three 3-month increments to 2028-03-25 if only regulatory conditions remain unsatisfied.

Bullish and bearish views on Synaptics Incorporated

The model's bull view on Synaptics Incorporated (SYNA), in brief: US antitrust is closed: the FTC granted early termination of the HSR waiting period effective 2026-08-12, roughly four weeks after the parties filed notifications on 2026-07-17. The bear view: The ratio is fixed and unhedged. Implied value was roughly $160 at announcement, $109.05 at onsemi's $80.78 close of 2026-08-04 (as stated in the S-4), and $100.18 on 2026-08-21. None of that erosion traces to Synaptics' own results. Tracking is close to total. The 2026-08-06… Both cases follow in full.

Bull Case

• US antitrust is closed: the FTC granted early termination of the HSR waiting period effective 2026-08-12, roughly four weeks after the parties filed notifications on 2026-07-17. No second request, no remedy negotiation.
• The S-4 filed 2026-08-21 converts the shareholder vote from undated to pending-effectiveness. It registers up to 61,448,587 onsemi shares and sets pro-forma ownership near 88% legacy onsemi / 12% former Synaptics holders on a fully diluted count.
• The discount has tightened on three consecutive marks — ~3.3% (2026-07-17), ~2.7% (2026-08-14), ~2.5% (2026-08-21) — through a 10% acquirer drawdown. The market repriced the acquirer, not the probability of closing.
• Acquirer fundamentals as last marked (2026-08-03): onsemi Q2 2026 revenue $1.60B, +9% YoY, against ~$1.59B consensus; non-GAAP EPS $0.74 versus ~$0.71; non-GAAP gross margin 39.3%, a fourth consecutive quarter of expansion; free cash flow $425.4M. Q3 guided to $1.65–1.75B revenue and $0.81–0.93 non-GAAP EPS, with AI data center revenue said to more than double in 2026 versus 2025.
• Third-party onsemi targets sit far above spot: stockanalysis.com showed a Buy consensus and a $108.88 average 12-month target across 29 analysts as of 2026-08-21, against the $74.21 close. Any closing of that gap carries mechanically at 1.350x.
• Break protection is contractual both ways: $235M termination fee payable by Synaptics, $320M reverse regulatory fee payable by onsemi.
• Synaptics' operations did not deteriorate into the deal: Q4 FY26 on 2026-08-06 printed adjusted EPS $1.23 versus $1.21 consensus on revenue of $308.0M versus $305.354M.

Bear Case

• The ratio is fixed and unhedged. Implied value was roughly $160 at announcement, $109.05 at onsemi's $80.78 close of 2026-08-04 (as stated in the S-4), and $100.18 on 2026-08-21. None of that erosion traces to Synaptics' own results.
• Tracking is close to total. The 2026-08-06 earnings beat produced no decoupling, and the 2026-08-14 to 2026-08-21 week moved both legs within 0.1pp of each other.
• Upside is capped at 1.350 onsemi shares in every path short of a topping bid, and none has appeared since 2026-06-25.
• The tail got longer with the S-4 disclosure. A ~2.5% gross discount held to a 2027-06-25 outside date is a thin annualized number, and the extension mechanism runs to 2028-03-25 if regulatory conditions are the only ones left.
• Finance leadership has thinned. Rizvi's resignation (2026-08-20) leaves CEO Rahul Patel as principal financial officer until close; Rizvi advises through 2026-09-30 and former Chief Accounting Officer Kermit Nolan returns as a consultant. Synaptics stated the exit was unrelated to any disagreement on operations, accounting or policy. It is consistent with a company being absorbed, and it also removes the executive a standalone restart would need if the deal breaks.
• Published SYNA targets are derived quantities: Wells Fargo $140 (Overweight) and Rosenblatt $115 (Neutral), both 2026-08-07, divide by 1.350 into onsemi views near $103.70 and $85.19. onsemi actually closed $74.21 on 2026-08-21.
• Non-US clearance remains open. China SAMR review of a deal with meaningful China-exposed revenue is the one regulatory leg that can still add months or conditions.

Setup & Price Structure

• The 2026-08-21 close was $97.66, 33.8% below the $147.57 52-week high, with a three-month price change of -32.0% and RSI(14) at 39.7. The chart is an acquirer chart with a 1.350 multiplier on it.
• The $100 handle broke in the week to 2026-08-21 without the discount widening — the level moved because onsemi moved. Under a fixed ratio, any static dollar level on SYNA is a moving target; the durable structure is the discount to 1.350 × onsemi, which has held between roughly 2% and 3.5% since the 2026-07-17 HSR filing.
• Positioning observables rather than a verdict on them: there is no imminent standalone print (fiscal year ends late June, Q4 FY26 reported 2026-08-06), so the next earnings event that sets the price is onsemi's Q3, roughly 2026-11-02. Issuance into the transaction is disclosed and dated — 61,448,587 onsemi shares registered 2026-08-21, about 12% pro forma. Retail-facing coverage dated 2026-08-21 clusters on the CFO exit rather than on the equity, and the syndicated headlines came from the resignation, not from a re-rating.
• The narrative is maturing. The standalone edge-AI narrative ended on 2026-06-25. What replaced it is a deal process still throwing off dated milestones — FTC early termination 2026-08-12, S-4 filing 2026-08-21 — with a spread that has tightened three marks running and upside capped by the ratio. It is not yet saturated because the stockholder vote and non-US clearance are both unresolved and both are dateable events; it is no longer accelerating because the announcement, the antitrust clearance and the registration statement are all behind it.

Catalyst Calendar (next 30 days)

• ~2026-09-22 (est., unconfirmed) — onsemi S-4 declared effective. The preliminary filing of 2026-08-21 leaves the special-meeting date bracketed; effectiveness is what fills it in.
• 2026-09-30 — Rizvi's advisory period ends; the CEO's principal-financial-officer arrangement runs to close from there.
• ~2026-11-02 (est.) — onsemi Q3 2026 print. Outside the 30-day window, but under a fixed ratio this is the actual price event: the $1.65–1.75B guide and the AI data center doubling claim get marked here.

Elapsed catalysts

• ~2026-08-25 (est.) — Synaptics FY26 Form 10-K. First full-year standalone disclosure since the takeout; merger risk factors and China-exposed revenue detail bear on the remaining SAMR leg. (passed 1d ago)
• ~2026-10 to 2026-11 (est., unconfirmed) — Synaptics special meeting: adoption of the 2026-06-25 reorganization agreement, the say-on-pay merger proposal, and an adjournment proposal. (passed 62d ago)

What Would Change Our Mind

The structure that matters is the discount, and it has not moved. What would break the read is the discount decoupling from the acquirer — SYNA falling while onsemi holds, which is the market pricing a lower probability of close rather than a lower acquirer. A weekly close below $90 is where that becomes measurable: with onsemi at its 2026-08-21 close of $74.21, that is a discount wider than 10% to ratio-implied value, versus the 2–3.5% band that has held since 2026-07-17. Secondary conditions that would carry the same information: a Form 8-K or 425 from either party disclosing a China SAMR phase-two review, remedy talks or a revised expected close; the 2026-08-21 S-4 failing to go effective by end-October, which would push the vote and stress the mid-2027 guide; or either party invoking the first 3-month extension of the 2027-06-25 outside date. In the other direction, a topping bid, or onsemi trading back toward the $108.88 consensus target published 2026-08-21, changes the arithmetic without changing the mechanism.

Correlation Notes

• Near-total dependence on onsemi: 2026-08-14 to 2026-08-21 saw ON -10.2% and SYNA -10.1%; 2026-07-17 to 2026-08-14 saw ON -5.4% and SYNA -4.8%. Position-level exposure here is analog/power semiconductor exposure with a merger coupon attached.
• Second-order exposure to the AI data-center power complex, which is the growth line onsemi guided on 2026-08-03 and the reason its multiple carries.
• Auto and industrial semiconductor demand remains the base of onsemi's revenue; SYNA inherits that cycle in full.
• Sensitivity to Synaptics' own results is now close to zero — the 2026-08-06 beat did not decouple the shares — so US-China trade and export-control headlines matter mainly through the SAMR clearance path, not through Synaptics' order book.