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▲
2016
$7.0B
-$674.9M
-$1.4B
-$1.5B
-14.2%
-9.6%
$5.9B
$3.4B
2017
$11.8B
-$2.0B
-$3.5B
-$4.6B
-46.3%
-16.7%
$8.8B
$3.4B
2018
$21.5B
-$976.0M
-$3.0M
-$2.0B
-19.8%
-4.5%
$8.4B
$3.7B
2019
$24.6B
-$862.0M
$1.1B
-$819.0M
-13.0%
-3.5%
$10.4B
$6.3B
2020
$31.5B
$721.0M
$2.8B
-$866.0M
3.2%
2.3%
$8.5B
$19.4B
2021
$53.8B
$5.5B
$5.0B
$947.0M
18.3%
10.3%
$4.3B
$17.6B
2022
$81.5B
$12.6B
$7.6B
$7.8B
28.1%
15.4%
$1.0B
$16.3B
2023
$96.8B
$15.0B
$4.4B
$9.4B
23.9%
15.5%
$2.7B
$16.4B
2024
$97.7B
$7.1B
$3.6B
-$131.0M
9.7%
7.3%
$5.5B
$16.1B
2025
$94.8B
$3.8B
$6.2B
$297.0M
4.6%
4.0%
$6.6B
$16.5B
Warren & Charlie
Buffett / Munger — quality, moat & valuation
Tesla, Inc. (TSLA) — Investment Memo
🐂 The Bull Case (Warren's voice)
We don't buy businesses; we buy streams of future cash. For Tesla to be a "wonderful business," we must look past the sheet metal.
The Energy Ecosystem: The real moat isn't the car; it's the vertical integration of energy generation, storage, and distribution. If Tesla becomes the "Standard Oil" of the electric grid, the automotive side is merely a customer acquisition tool.
The Software Pivot: If FSD (Full Self-Driving) transitions from a "beta promise" to a high-margin, recurring subscription, the business transforms from a capital-intensive manufacturer to a software platform. That is where the compounding happens.
Brand Hegemony: Despite the noise, Tesla remains the default choice for the EV transition. Brand is a moat when it allows for pricing power; currently, that power is dormant, not dead.
Entry Price: This becomes attractive only when the market stops pricing it as a "Tech AI" company and starts pricing it as a specialized industrial. We enter when the price reflects the current cash flows, not the aspirational ones.
🐻 The Bear Case (Charlie inverts)
"Show me where I'll die and I won't go there." The death of Tesla isn't a bad quarter; it's a structural collapse.
The Commodity Trap: The "Cost Advantage" is gone. When BYD and Xiaomi can produce comparable hardware for less, Tesla becomes just another car company. The most dangerous place to be is in a price war with a lower-cost producer.
The "Key Man" Diversion: The CEO is no longer a focused operator; he is a multi-company distraction. When the visionary becomes a liability to the brand equity, the intangible assets evaporate.
The Capex Treadmill: To grow revenue, Tesla must build more factories. But with ROE crashing to 4.6%, they are spending $1 to make pennies. This is the definition of a capital incinerator.
Most Likely Failure: The "Commodity Trap." Over the next 3–5 years, Tesla likely settles into the low-margin reality of the global auto industry, leading to a permanent re-rating of the P/E multiple.
💰 Valuation & Margin of Safety
The DCF doesn't lie, even if the narrative does.
Intrinsic value estimate: $59.40 per share.
25% margin of safety entry: $44.55(conservative).
50% margin of safety entry: $29.70(Buffett's ideal).
Current Status: Grossly expensive. Based on the provided DCF, the stock is trading at a massive premium to its actual cash-generating ability. The market is paying for a "Robotaxi" future that is not yet reflected in the FCF.
Verdict: PASS
The current market price is disconnected from the fundamental reality of the company's collapsing margins and ROE. We do not pay for "hope" or "promises" of future software breakthroughs. We pass until the price meets the value.
Research Notes· Money Model · Moat · Financials · Management
Data sourced from SEC EDGAR XBRL filings (10-K only). For educational purposes — not investment advice.