BX vs STEP: How Blackstone and StepStone Group Compare (2026)

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. BX and STEP share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined BX and STEP exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Blackstone Inc. is the world's largest alternative asset manager, investing on behalf of pension funds, sovereign wealth funds, insurers, endowments, and increasingly individual investors. It runs money across several major strategies: real estate (historically its largest), private equity, credit and insurance, infrastructure, life sciences, growth equity, secondaries, and hedge fund solutions. The business model has two engines. First, it earns recurring management fees on the capital it manages, which produces relatively stable fee-related earnings and grows as assets under management climb. Second, it earns performance fees (carried interest and incentive fees) when its funds generate strong returns, which are lumpier and depend on realizations and market conditions. Because most of its capital is locked up in long-dated funds, Blackstone has durable, contracted fee streams, and it distributes a large share of its distributable earnings to shareholders as a variable quarterly dividend rather than a fixed one.

Full BX guide

StepStone Group is a private markets investment firm headquartered in New York that acts as an outsourced allocator rather than a traditional buyout shop. Clients hand it capital through separately managed accounts, commingled funds and advisory mandates, and StepStone deploys that money into primary fund commitments, secondaries and co-investments across four asset classes: private equity, infrastructure, private debt and real estate. It was responsible for approximately $885 billion of total capital as of March 31, 2026, of which roughly $233.3 billion was discretionary assets under management and about $144.0 billion was fee-earning AUM. A large research and data operation, commercialized as the SPI by StepStone platform, sits underneath all of it and covers tens of thousands of funds, managers and portfolio companies.

Full STEP guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• BX drivers: Growth of assets under management; Private wealth and retail channel.
• STEP drivers: Fee-earning AUM plus a large undeployed backlog; The private wealth channel.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Blackstone's risks stem from its market-linked, cyclical model. For STEP, carried interest is genuinely volatile: total performance fees swung to about $1.07 billion in fiscal 2026 from $407.8 million a year earlier, and fiscal Q4 performance fee earnings fell 57% year over year, so quarter-to-quarter GAAP results tell you little about run-rate economics.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick BX if you believe its drivers more; STEP if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the BX and STEP guides.

BX. These figures are qualitative and approximate as of the asOf date, not precise real-time numbers. Because performance fees and the variable dividend move with realizations and markets, quarterly results can be uneven. Confirm live AUM, revenue, fee-related earnings, dividend, and valuation before acting.

STEP. Fiscal 2026 revenue of about $1.99 billion was up roughly 70% year over year, but that figure is inflated by unrealized carried interest allocations of about $539.7 million, so management and advisory fees of about $926.5 million are the cleaner comparison. Trailing GAAP EPS is negative because of the non-cash buy-in charge, which is why the stock is usually valued on adjusted net income of about $2.16 per share for fiscal 2026 or on forward estimates near 20x. Shares traded around $50 in early August 2026, down roughly 30% over twelve months, with a base quarterly dividend of $0.28 supplemented by a $0.55 variable payment tied to realized carry.

Headline figures (approximate, Jul 2026): BX shows assets under management More than $1.3 trillion as of early 2026, the largest of any alternative asset manager, after record inflows (roughly $70 billion in a recent quarter), revenue trend Full-year 2025 revenue was about $14.5 billion, up roughly $1.2 billion year over year; management and advisory fees were about $8.1 billion, profitability Emphasizes fee-related earnings (recurring management fees) as the stable core, with performance fees (carried interest) adding lumpier upside tied to realizations, capital returns Pays a variable quarterly dividend tied to distributable earnings (not a fixed rate) plus buybacks, so the payout rises and falls with results; STEP shows revenue (fy2026) ~$1.99B, assets under management ~$233.3B, fee-earning aum ~$144.0B, fee-related earnings (fy2026) ~$354.4M.

BX and STEP are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined BX and STEP exposure against your real portfolio. It is not an investment adviser.