Silicon Labs (SLAB) Q3 2026 earnings review
Silicon Labs triples profit as medical chip sales boom
Silicon Labs, which designs low-power wireless chips for smart meters, medical sensors and home gadgets, grew sales while holding overhead nearly flat. Revenue rose 22% from a year ago to $251 million, and profit per share excluding one-offs more than tripled to $1.05. Chief executive Matt Johnson credited new medical device launches, which rose more than 300% from a year ago.
| Revenue | $251M +22% from a year ago |
|---|---|
| Profit per share, excluding one-offs | $1.05 +228% from a year ago |
| Operating margin, excluding one-offs | 16.0% 5.1% a year ago |
| Forward outlook | Suspended pending acquisition by Texas Instruments |
⚖️ Verdict: 🟢 Bullish
The story got better because the chipmaker returned to reported profitability and turned first-half cash burn into third-quarter cash generation. By our math, Silicon Labs produced about $40 million of free cash flow in the quarter as operating margins excluding one-offs reached 16%. One caution: inventory sitting on its own balance sheet climbed 62% from a year ago even though distributor stockpiles hit multi-year lows.
The question now is whether rising warehouse inventory prepares for customer launches or signals that distributors are reluctant to restock. If medical and smart-meter ramps absorb the chips, cash flow will stay high; if orders slow, gross margins will slip below 60%. Next quarter's balance sheet and margin lines will settle it, since the company gives no outlook while awaiting its buyout by Texas Instruments.
🐂 Bull Case
Tight Cost Control Tripled the Operating Margin
"Earnings significantly outpaced revenue growth, a result of strong operational execution by the team," chief executive Matt Johnson said. Silicon Labs designs low-power wireless chips that connect smart meters, medical sensors and home gadgets. Because the chipmaker kept its staffing and research budgets nearly flat while sales rose, most of the new gross profit flowed straight to the bottom line.
- Operating margin excluding one-offs: 16.0%, up 10.9 percentage points from a year ago
- Research and development (cost of designing new chips): 37.1% of revenue, down 5.4 percentage points from a year ago by our math
- Selling and overhead costs: 20.5% of revenue, down 0.7 percentage points from a year ago by our math
- Operating profit on a reported basis: $8.0 million, swinging from a $12.3 million loss a year ago
Operating expenses excluding stock pay, intangible asset write-downs and deal fees grew just 3.5% from a year ago to $112.8 million, even as revenue climbed 21.8%. That discipline turned the business profitable on a reported basis despite $6.9 million of merger fees during the quarter.
What to watch: operating expenses excluding one-offs in the fourth-quarter report. Staying near $113 million while sales grow would show the Austin group can push operating margins toward 20%.
Medical Ramps Carry Home and Life
Silicon Labs splits its sales between two divisions: Industrial and Commercial, which sells chips for utility meters and store shelf labels, and Home and Life, which supplies smart-home gear and wearable medical monitors. Chief executive Matt Johnson highlighted "another record quarter for medical revenue as known customer ramps continued".
Medical sales grew 48% from last quarter and more than 300% from a year ago, lifting the Home and Life division 24% to $110 million. That outpaced the larger Industrial and Commercial unit for the first time in a year, because new continuous glucose monitors and health patches entered mass production.
What to watch: Home and Life sequential sales growth next quarter. Another double-digit rise would prove that medical device launches can carry total company growth even if industrial orders cool.
Free Cash Flow Bounced Back
Through the first six months of 2026, Silicon Labs burned $31.7 million of free cash flow as it paid for factory gear and built up chip stockpiles. In the third quarter, rising profits finally overcame those working-capital drains.
By our math, comparing nine-month cash flow figures against the first half shows the wireless chipmaker generated $46.8 million of operating cash flow and $40.5 million of free cash flow in the third quarter alone. That equals 16.1% of quarterly sales, lifting total cash and short-term investments to $439.8 million.
What to watch: full-year operating cash flow in the annual filing. A second straight quarter above $40 million would show the first-half cash burn is behind it.
🐻 Bear Case
Internal Inventory Rises While Channel Stock Shrinks
The company stated in its highlights that "distributor inventory declined further to a multi-year low and end customer inventory was near record lows during the quarter". That framing suggests a lean supply chain ready for fresh factory orders.
Yet Silicon Labs' own balance sheet tells the opposite story. Inventories sitting in its own warehouses climbed to $133.4 million, up 62.3% from $82.2 million a year ago and up 39.6% since January, by our math. Building that internal stockpile consumed $37.8 million of cash over the first nine months of 2026, compared with a $23.3 million cash release a year earlier.
This matters because the chipmaker is holding the unsold stock on its own books rather than in distributor warehouses. If end-market demand slows before distributors restock, Silicon Labs faces factory under-utilisation or write-downs.
What to watch: balance sheet inventory in the fourth-quarter report. A rise above $140 million without a matching jump in sales would mean the company is producing faster than customers are buying.
Gross Margin Slipped From Its Recent Peak
Gross margin — the share of sales left after paying to manufacture the chips — rose 3.0 percentage points from a year ago to 61.0% excluding one-offs. However, the measure has slipped for three quarters since peaking at 63.6% at the end of 2025, dropping 0.9 percentage points from the second quarter.
Prior management commentary warned that high-margin industrial product mix would eventually normalise toward a 56% to 58% long-term range, and faster growth in consumer-facing Home and Life chips this quarter sped up that shift. The release also warns of "the impact of the current global memory chip shortage" in its risk factors, which could raise component costs or delay customer device builds.
What to watch: gross margin excluding one-offs next quarter. A drop below 60% would confirm that booming medical and smart-home sales carry thinner unit margins than industrial meters.
👓 Other Themes
Texas Instruments Buyout Costs Hit $28 Million
"Due to the announced pending acquisition of Silicon Labs by Texas Instruments, Silicon Labs has suspended providing forward-looking guidance," the company wrote. The chipmaker spent $6.9 million on legal and advisory merger fees in the third quarter, bringing its nine-month deal bill to $27.7 million by our math, and it no longer holds quarterly conference calls.
💲 Other KPIs
Sales in the largest division rose 20% from a year ago and 4.4% from last quarter. Year-on-year growth has cooled for three straight quarters from 37% at the end of 2025, though utility smart-meter rollouts and electronic shelf labels continue to expand.
Money owed by customers for delivered chips rose 18.8% from a year ago by our math, staying slightly below the 21.8% pace of revenue growth. Receivables barely budged from $79.8 million at the end of the second quarter, helping third-quarter cash collection.
Deferred revenue and returns liability — upfront payments for orders not yet recognized as revenue — jumped 82.9% from $5.4 million in January and 16.1% from a year ago by our math, matching management's remarks on healthy order bookings.
Weighted-average diluted shares rose 2.8% from a year ago by our math. The pending merger agreement restricts share buybacks, and returning to a reported net profit added dilutive employee stock options back into the share count.
❓ Key Questions
Why is on-book inventory rising while distributor stock falls?
Warehouse inventory jumped 40% since January to $133.4 million even as management says distributor stock hit a multi-year low. Without a conference call, investors cannot tell if the buildup reflects deliberate buffer stock for medical launches or delayed distributor orders.
How big is medical revenue as a share of sales?
Earlier in the cycle management aimed for continuous glucose monitors to reach 10% of total sales in the first half of 2026. After growing more than 300% from a year ago in the third quarter, the exact dollar contribution remains undisclosed.
Is the global memory shortage delaying customer device builds?
The press release explicitly lists the global memory chip shortage among its forward-looking risks. Because wireless chips sit alongside memory in smart-home and industrial boards, a shortage of memory at device makers could cap fourth-quarter shipments.
When does the Texas Instruments merger close?
Silicon Labs has spent $27.7 million on merger-related costs over the last three quarters and suspended all financial outlooks and earnings calls. The release gives no update on remaining regulatory approvals or an expected closing date.