BlackRock vs Blackstone (BLK vs BX)
Side by side from their SEC filings: revenue, margins, growth, returns and valuation, plus short interest, insider activity and institutional ownership.
BlackRock is the larger company by revenue ($24.2B vs $14.5B) and market value ($168.5B vs $150.4B). BlackRock grew revenue faster in its latest fiscal year (+18.7% vs +9.2%). BlackRock trades at the lower trailing P/E (26.1x vs 31.6x).
About BlackRock
BlackRock, Inc. is an investment management firm that manages approximately $14 trillion in assets as of the end of 2025. The company offers a variety of investment products including equities, fixed income, private markets, and ETFs, serving institutional and retail clients worldwide. BlackRock also provides technology and advisory services through platforms like Aladdin to support investment and risk management.
About Blackstone
Blackstone Inc. is a global alternative asset manager with over $1.3 trillion in assets under management. The company offers investment strategies across real estate, private equity, credit, infrastructure, life sciences, and hedge funds, serving institutional and individual investors. Blackstone operates through four main segments: Real Estate, Private Equity, Credit & Insurance, and Multi-Asset Investing.
Head to head (BLK FY2025 vs BX FY2025)
| Metric | BLKFY2025 | BXFY2025 |
|---|---|---|
| Revenue | $24.22B | $14.45B |
| Revenue growth (YoY) | 18.7% | 9.2% |
| Gross margin | — | — |
| Operating margin | 29.1% | — |
| Net margin | 22.9% | 20.9% |
| Net income | $5.55B | $3.02B |
| Diluted EPS | $35.31 | $3.87 |
| FCF margin | 14.7% | 31.5% |
| ROE | — | — |
| Debt / equity | — | — |
| Market cap | $168.47B | $150.45B |
| P/E (TTM) | 26.1× | 31.6× |
Fundamentals are from each company’s SEC filings (BLK FY2025, BX FY2025). P/E and market cap are derived from recent market prices and update daily.
Five-year trend (as reported)
| Revenue | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
| BLK | — | $17.87B | $17.86B | $20.41B | $24.22B |
| BX | $22.58B | $8.52B | $8.02B | $13.23B | $14.45B |
Peer standing
Where each company ranks among the 424 Financials companies, on the same scale. Each figure is ranked only against peers that report it. Percentiles describe position in the distribution, not a rating.
| Metric | BLK | BX |
|---|---|---|
| Net margin | 22.9%66th percentile of 378 | 20.9%60th percentile of 378 |
| FCF margin | 14.7%42nd percentile of 273 | 31.5%72nd percentile of 273 |
| Revenue growth (YoY) | +18.7%66th percentile of 420 | +9.2%47th percentile of 420 |
| P/E (TTM) | 26.1×82nd percentile of 316 | 31.6×89th percentile of 316 |
| Short interest (days to cover) | 1.97d25th percentile of 418 | 3.69d67th percentile of 418 |
Short interest
| FINRA settlement data | BLK | BX |
|---|---|---|
| Shares sold short | 2.1M | 23.1M |
| Change vs prior settlement | +3.2% | +14.5% |
| Days to cover | 1.97 | 3.69 |
| As of settlement | 2026-06-30 | 2026-06-30 |
Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data; republishing or redistributing it is not permitted. Not presented as a percentage of float. No FINRA endorsement of this product is implied.
Insider activity (last 90 days)
| Form 4 open-market activity | BLK | BX |
|---|---|---|
| Buys | 0 | 3 ($53,974) |
| Sells | 10 ($66.8M) | 2 ($3.8M) |
Open-market purchases and sales reported on SEC Form 4 (grants, exercises and tax withholding excluded). For context, about 16% of covered companies saw any open-market insider buy in a 90-day window.
Held by the same investors
8 tracked 13F managers hold both BlackRock and Blackstone as of their latest quarterly filings: AQR Capital Management, Citadel Advisors, D. E. Shaw, Gotham Asset Management, Harris Associates (Oakmark), Markel Group, Millennium Management, Two Sigma Investments. See which superinvestors hold your own portfolio with the smart money checker.
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Data sourced from SEC EDGAR (public domain). Figures are as-reported and may be unaudited or restated; verify against the source filings before relying on them. Comparisons are descriptive (higher or lower on a reported figure), not a rating or a recommendation. Informational only. Not investment advice.