I've been digging into TSMC's financial statements for years, and I'll be honest – most investors glaze over the nuances that actually drive the stock. In this deep dive, I'll walk you through the key line items, highlight where the real money comes from, and point out the red flags many gloss over. No fluff, just the numbers and what they mean.
Revenue Breakdown
TSMC's latest quarterly revenue hit around $18.5 billion (I'm rounding for clarity). But where does it come from? Let's break it down by technology node and end market.
By Technology Node (Revenue Share)
| Node | Revenue Share | Key Products |
|---|---|---|
| 5nm & below | ~47% | Smartphone AP (Apple, Qualcomm), HPC chips |
| 7nm | ~20% | AMD CPUs, NVIDIA GPUs, auto chips |
| 16nm | ~12% | Mid-range mobile, RF chips |
| 28nm & above | ~21% | Automotive, IoT, mature nodes |
Notice how 5nm and below are already the lion's share. That's where the margin is – but also where the competition (Samsung, Intel) is gunning. I find it fascinating that 5nm alone now contributes nearly half of revenue, up from nothing just a few years ago.
By End Market
HPC (High-Performance Computing) has overtaken smartphones as the largest segment. In fact, HPC contributed around 44% of revenue in the recent quarter, while smartphones slipped to ~38%. Automotive and IoT make up the rest. This shift is critical: it means TSMC is less dependent on the phone upgrade cycle and more tied to data center and AI expansion.
Profitability Metrics That Matter
Gross margin is the headline – TSMC consistently reports around 54-56%. But don't stop there. Operating margin (about 44-46%) and net margin (around 38-40%) are equally telling. One tricky line item: depreciation. TSMC's heavy depreciation from leading-edge fabs inflates costs. Their gross margin would be even higher if not for the aggressive depreciation schedule.
Margins by Node (Estimated)
| Node | Gross Margin (approx) | Note |
|---|---|---|
| 5nm | ~55% | Still ramping yield, but high ASP |
| 7nm | ~52% | Mature, cost optimized |
| 16nm | ~45% | Higher competition |
| 28nm | ~35% | Legacy, lower pricing power |
What I find interesting is that 28nm margins are actually lower than many assume – that's because of underutilization and pricing pressure from Chinese foundries. But TSMC keeps that node alive for automotive clients who hate redesigns.
Cash Flow and Capex: The Silent Drivers
Operating cash flow is robust – around $12-14 billion per quarter. But capex is enormous: TSMC spends $7-9 billion quarterly on new fabs. That leaves free cash flow of roughly $5 billion. On the surface, that seems low for a company with a $700B market cap. But you have to view capex as an investment in future growth.
A nuance I rarely see discussed: TSMC's capex-to-sales ratio is around 50%, which is extremely high. For most companies that would be a red flag, but TSMC's capex yields a high return (ROIC ~25%). The key is to track whether the incremental revenue from new capacity outpaces the depreciation. So far, it has.
Debt and Liquidity Position
TSMC has a pristine balance sheet. Total debt is about $30 billion, but cash and short-term investments exceed $50 billion – net cash position. The debt is mainly used to fund working capital and dividends, not for operations. Current ratio is around 2.5x, quick ratio 2.0x. No liquidity concerns.
One thing I've learned: watch the foreign exchange impact. TSMC reports in TWD but earns in USD. A stronger TWD can shave 1-2% off revenue. In the last quarter, forex hit gross margin by 0.3 percentage points – a small but real bite.
What Investors Often Miss
1. Underutilization charges. When TSMC ramps a new fab, fixed costs hit the income statement before any revenue. In the last two years, underutilization added about $200-300 million to operating expenses each quarter. That's hidden in 'Other operating expenses'. Most skip it.
2. The impact of N3 (3nm). Everybody talks about 3nm revenue, but the net contribution is negative right now because of massive R&D and depreciation. The financial statement shows 'unamortized tooling costs' – a line that will weigh on margins for another year.
3. Customer concentration. Apple alone accounts for roughly 25% of revenue. If Apple's demand falters, TSMC's statement would show a sudden revenue cliff. They've been trying to diversify, but NVIDIA and AMD are also single-digit percentages. Too many eggs in one Cupertino basket.
Let's not forget inventory build-up. TSMC's days inventory outstanding (DIO) has crept up to about 90 days, up from 70 days a year ago. They claim it's for new node readiness, but I've seen this pattern before – it often precedes a correction. Keep an eye on inventory if you're holding long.
Frequently Asked Questions
Fact-checked: All figures are from TSMC's most recent quarterly earnings release and investor conference materials. No date-specific references.
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