Two semiconductor giants. Two earnings reports. One question hanging over the AI trade: How much more growth can the market realistically expect?
$ASML Holding(ASML)$ reports on October 14, followed by $Taiwan Semiconductor Manufacturing(TSM)$ on October 15. Both are crucial to understanding whether AI infrastructure spending can continue supporting semiconductor growth. 
But I’m watching more than whether they beat earnings estimates.
🔬 1. ASML: Are chipmakers still willing to spend?
ASML makes the advanced lithography equipment required to manufacture cutting-edge semiconductors. Its extreme ultraviolet (EUV) systems are particularly important for producing advanced chips.
In July, ASML raised its 2026 revenue outlook to €43 billion–€45 billion and said customer demand remained strong.
This week’s key indicators:
• Order intake: Are customers committing to more equipment?
• 2027 visibility: Are chipmakers expanding capacity beyond current demand?
• Guidance: Can ASML maintain its growth trajectory?
Strong orders would reinforce confidence in future semiconductor investment. Weaker commitments could raise questions about whether customers are becoming more cautious. 
🏭 2. TSMC: Can AI demand translate into sustainable profits?
TSMC manufactures chips for companies including Nvidia and Apple. It also plays a critical role in producing advanced AI processors.
Its September revenue rose 54.6% year over year, while third-quarter revenue reached a record NT$1.49 trillion, approximately US$46.71 billion.
That is strong evidence of demand. Now investors need to know whether the momentum can continue. 
I’m watching three things:
🔹 AI demand: Are customers maintaining their spending plans?
🔹 Advanced packaging: Can TSMC expand CoWoS capacity fast enough to meet demand?
🔹 Profit margins: Can it absorb the cost of expanding production while protecting profitability?
Record revenue is encouraging, but future guidance will help determine whether today’s expectations are sustainable.
⚖️ 3. ASML or TSMC — which matters more?
I see them as two different pieces of the same investment puzzle.
ASML provides an early signal of whether chipmakers are committing capital to future production capacity.
TSMC provides a closer look at whether demand for advanced chips is translating into actual manufacturing revenue and profits.
If ASML reports strong orders but TSMC signals weaker demand, investors may question how quickly equipment spending will translate into commercial returns.
If both companies raise expectations, confidence in the AI infrastructure cycle could strengthen.
However, even excellent results may not lift share prices if investors have already priced in the good news.
🎯 MY TAKE
The next phase of the AI trade may depend less on ambitious spending announcements and more on evidence that the spending is economically justified.
I’d watch ASML’s order book for future confidence and TSMC’s guidance for evidence of current demand and profitability.
The biggest risk isn’t necessarily that AI demand disappears. It’s that the market expects growth to remain exceptional for longer than businesses can deliver.
Which signal matters more to you this week: ASML’s new orders or TSMC’s AI revenue and margin outlook? And would strong earnings be enough to justify buying either stock after the recent semiconductor sell-off?
Sharing my personal market observations and investment ideas for discussion purposes only
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