BLK vs COST: Which Is the Better Buy?
Side-by-side comparison of BlackRock, Inc. and Costco Wholesale Corporation — fair value, conviction, valuation metrics, and QuantHub research signals.
Updated 2026-04-22.
BlackRock, Inc. · Financial Services
$1,042.85
+125.5% upside to fair value
Grade A
High Quality
VS
Costco Wholesale Corporation · Consumer Defensive
$999.89
-19.1% upside to fair value
Grade D
High Quality
QuantHub Verdict
BLK has more upside to fair value
(+125.5%).
BLK trades at a lower forward P/E
(25.9x).
These are model outputs — not personalized investment advice.
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Valuation & Fundamentals
| Metric |
BLK |
COST |
| Current Price |
$1,042.85 |
$999.89 |
| Fair Value Estimate |
$2,351.12 |
$808.71 |
| Upside to Fair Value |
+125.5%
|
-19.1%
|
| Market Cap |
$162.2B |
$443.6B |
| Forward P/E |
25.9x
|
51.9x
|
| EV / EBITDA |
16.9x
|
30.9x
|
| Price / Sales |
6.3x
|
1.6x
|
| Price / FCF |
45.2x
|
48.8x
|
| Revenue Growth YoY |
+28.3%
|
+9.2%
|
| Gross Margin |
59.1%
|
12.9%
|
| Operating Margin |
29.9%
|
3.8%
|
| Return on Equity |
12.0%
|
28.8%
|
| Dividend Yield |
0% |
0% |
| FCF Yield |
2.21%
|
2.05%
|
| Analyst Consensus |
Strong Buy
|
Buy
|
Investment Thesis
BlackRock, Inc. is the world's largest asset manager with over $14 trillion in assets under management, operating primarily in financial services and asset management. The company benefits from a durable competitive moat driven by its scale, technology platform Aladdin, and founder-led management with CEO Laurence D. Fink at the helm since inception. BlackRock exhibits strong fundamentals includi…
Costco Wholesale Corporation operates a global membership-based warehouse club model that leverages scale, low costs, and superior employee retention to deliver consistent revenue and earnings growth. The company reported $269.9 billion in net sales for fiscal 2025 with an 8% year-over-year increase, driven by strong segments in Foods and Sundries and membership fees exceeding $5.65 billion in th…
Accumulation Zones
| Metric |
BLK |
COST |
| Zone Low |
$1,763.34 |
$606.53 |
| Zone High |
$1,998.45 |
$687.40 |
| In Buy Zone? |
Yes
|
No
|