The SPDR STI ETF (SGX: ES3), which tracks Singapore’s Straits Times Index (SGX: ^STI), returned 13.1% in the first half of 2026.
That’s a solid performance for the first six months of the year.
But four billion-dollar stocks made it look ordinary.
AEM Holdings (SGX: AWX) delivered returns of 512% over the same period.
Meanwhile, the trio of UMS Integration (SGX: 558), Nanofilm Technologies (SGX: MZH), and Frencken Group (SGX: E28) returned 132%, 113%, and 106%, respectively.
All four sit outside the STI’s 30 constituents, yet they left the index far behind.
One theme connects them.
Each is tied to the semiconductor cycle, and the market spent the first half of 2026 repricing that exposure.
Which company had the clearest recovery?
AEM Holdings makes semiconductor test and handling equipment.
The firm’s first quarter gave the market the most to work with.
For starters, revenue rose 35.8% year on year to S$116.9 million.
Net profit surged 329.4% to S$14.3 million, and net profit margin widened to 12.3% from 3.9% a year ago.
The Test Cell Solutions segment did the heavy lifting, growing 72.0% to S$88.1 million and making up three-quarters of group revenue.
Growth came from a high-volume production ramp for AEM’s fabless AI/HPC customer.
Management then raised its 2026 revenue guidance by around 20%, to a range of S$550 million to S$600 million.
That implies growth of 38% to 50% for the full year.
The fabless AI/HPC customer is on track to become AEM’s largest revenue contributor this year.
The group held cash of S$72.9 million against borrowings of S$16.4 million at end-March, a net cash position of S$56.5 million.
No dividend was declared for the quarter.
For 2025, AEM had reinstated its dividend at S$0.013 per share.
When earnings more than quadruple and guidance goes up, investors tend to rethink what a business is worth.
AEM gave them reason to.
Did the recovery show up beyond AEM?
UMS Integration supplies equipment manufacturing and engineering services to semiconductor OEMs.
The manufacturing firm’s quarter told a similar story with a wrinkle.
Revenue rose 20% year on year to S$69.4 million.
The Semiconductor segment grew 21% to S$58.9 million, helped by a 26% jump in component sales from a new key customer.
Net profit climbed 43% to S$14.0 million, though a S$1.5 million foreign exchange gain flattered the figure against a S$1.1 million loss a year earlier.
The cash picture is more complicated.
Free cash flow came in at negative S$8.9 million, against positive S$0.7 million a year ago, on higher working capital and executive bonus payments.
Free cash flow is the lifeblood of dividends, and a single negative quarter is worth watching rather than fearing.
UMS held S$34.3 million in cash against S$8.3 million of debt at end-March.
It declared an interim dividend of S$0.01 per share, unchanged from a year ago.
The order flow from that new key customer remains strong as it shifts its US supply source to Asia.
Management expects better full-year performance.
Elsewhere, Nanofilm Technologies returned to profitability.
Revenue rose 24% year on year to S$55 million, with growth across every major division.
Gross profit margin expanded to 39% from 27%, and EBITDA margin more than doubled to 26% from 12%.
The consumer materials business led the way, up 32% to S$34 million.
The update was brief, so profit, cash and debt figures were not disclosed.
Why did Frencken rise when its earnings fell?
Frencken Group is the puzzle.
The mechatronics firm’s share price more than doubled while its first-quarter numbers went the other way.
Revenue fell 6.4% year on year to S$202 million.
Net profit dropped 20.2% to S$8 million.
The weakness sat in the Mechatronics Division, where softer semiconductor and analytical life sciences demand in Europe pulled sales down 7.7%.
So why the rally?
Investors appear to have bought the forward story rather than the quarter.
Management guided for Mechatronics Europe to recover from the second half of FY2026 and expects stronger momentum in 2H2026 to support full-year growth.
Frencken also carries a net cash position of S$115.4 million, giving it room to wait for the recovery it expects.
That gap between falling earnings and a rising share price is the clearest sign of what drove all four stocks.
The market was pricing the cycle ahead, not the quarter behind.
Get Smart: One theme, four winners
These four did not top the field by accident, and they did not top it alone.
They ride the same wave: AI and semiconductor demand working through test equipment, precision components and advanced materials.
Where that demand landed hardest in the numbers, the re-rating was largest.
AEM showed the sharpest inflection and led the pack.
Frencken showed the weakest quarter and still doubled, because the market looked past it.
A share price that runs ahead of earnings is a bet on what comes next.
Sometimes the next quarters deliver.
Sometimes they don’t.
You are the one who decides whether the forward story is worth the price being asked today.
One of these six companies is the only one legally allowed to operate in Singapore. It has increased its dividend for 16 consecutive years. Discover which one it is in our free report here.
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Disclosure: The Smart Investor owns shares of AEM.
