Berkshire requires a 25–50% discount to intrinsic value before buying.
Buffett Quality Checklist
✓ROE >15% consistently (≥7 of last 10 years)
✓Free cash flow positive (≥8 of last 10 years)
–Conservative leverage — Debt/Equity below 1
✓Revenue growing at CAGR >5%
✓EPS growing at CAGR >5%
10-Year Financial History — SEC EDGAR 10-K Filings
Year▲
Revenue▲
Net Income▲
FCF▲
Owner Earnings▲
ROE▲
Net Margin▲
LT Debt▲
Cash▲
2015
$1.6B
$158.9M
$276.9M
$234.7M
11.9%
10.1%
—
$932.2M
2016
$1.8B
$203.1M
$391.2M
$269.0M
27.4%
11.2%
—
$465.2M
2017
$1.9B
$204.1M
$412.8M
$261.7M
20.6%
10.5%
—
$688.1M
2018
$2.1B
$345.8M
$543.2M
$403.0M
26.8%
16.2%
—
$533.3M
2019
$2.3B
$989.0M
$655.0M
$1.0B
47.0%
42.3%
—
$705.2M
2021
$2.7B
$590.6M
$810.1M
$641.5M
23.7%
22.0%
—
$928.4M
2022
$3.6B
$849.0M
$1.1B
$857.8M
30.9%
23.8%
—
$882.3M
2023
$4.1B
$1.0B
$1.2B
$1.1B
30.6%
25.5%
—
$1.0B
2024
$4.6B
$1.1B
$1.1B
$1.1B
22.6%
22.7%
—
$2.6B
2025
$5.3B
$1.1B
$1.6B
$1.2B
20.3%
20.9%
—
$3.0B
Warren & Charlie
Buffett / Munger — quality, moat & valuation
CADENCE DESIGN SYSTEMS INC (CDNS) — Investment Memo
🐂 The Bull Case (Warren's voice)
We aren't buying a software company; we are buying the indispensable infrastructure of the digital age.
The Ultimate Toll Bridge: Cadence doesn't compete in the volatile chip wars; they sell the shovels to everyone digging. Whether NVIDIA or AMD wins the AI race, they both pay the Cadence toll.
Institutional Lock-in: The moat isn't just "software"—it's human capital. When 500 engineers spend a decade mastering a specific Cadence workflow, the cost of switching isn't just a license fee; it's a total loss of productivity. That is a moat built of concrete.
Exceptional Unit Economics:
FCF consistently outpaces Net Income, signaling high-quality earnings and minimal accounting gimmickry.
High recurring revenue via subscriptions creates a predictable cash stream that allows for disciplined, "tuck-in" acquisitions without diluting shareholders.
AI as a Tailwind, Not a Threat: AI is making chips exponentially more complex. As complexity rises, the reliance on sophisticated verification tools becomes absolute. The more complex the chip, the higher the toll.
Attractive Entry: This becomes a Berkshire-style "fat pitch" if the market forgets that the moat is structural, not cyclical. We look for a price that ignores the "AI hype" and pays for the cash flow.
🐻 The Bear Case (Charlie inverts)
"Show me where I'll die and I won't go there."
The "Open Source" Black Swan: The greatest threat is a coordinated industry shift toward open-source EDA tools. If the "Linux of Chip Design" reaches critical mass, the toll bridge is bypassed entirely. Permanent impairment via commoditization.
The Sovereign Divorce: Cadence is caught in the crossfire of US-China decoupling. If China mandates "domestic-only" tools for its semiconductor push, a massive slice of the growth engine is amputated. Geopolitical risk is the one variable you cannot underwrite.
Vertical Integration: If the "Hyperscalers" (Apple, Google, Amazon) decide to build their own proprietary internal design suites to avoid the "Cadence Tax," the customer concentration risk spikes.
The Most Likely Failure: The Sovereign Divorce. It is the most probable structural threat, likely playing out over the next 3–7 years as China aggressively pursues "silicon independence."
💰 Valuation & Margin of Safety
The business is a 10, but the price is often a 4.
Intrinsic value estimate: $208.51 per share
25% margin of safety entry: $156.38(conservative)
50% margin of safety entry: $104.26(Buffett's ideal)
Current Status: Expensive.
Based on the DCF, the market is currently pricing in growth far beyond the assumed 15.0% FCF CAGR. We are paying for perfection in a world that is rarely perfect.
Verdict: WATCH
The moat is a fortress, and the earnings quality is pristine. However, the current price provides zero margin of safety against the geopolitical risks Charlie identified. We wait for a market panic to bring the price toward $160 before committing capital.
Research Notes· Money Model · Moat · Financials · Management
Data sourced from SEC EDGAR XBRL filings (10-K only). For educational purposes — not investment advice.