Aladdin: The Software Its Rivals Run OnWide moat

BlackRock (BLK) — moat facet

Competing asset managers pay BlackRock to run their portfolios, and would all prefer not to — the moat is captivity, not affection.

Every asset manager needs to know what it owns, what those holdings are worth, what could go wrong with them, and how to trade out of them. Most firms built that capability themselves, badly, over decades, in a pile of spreadsheets and vendor systems that do not speak to each other. BlackRock built it once, properly, for itself — and then sold it to everyone else.

Technology services and subscription revenue ($m)$1,485m2023$1,603m2024$1,981m2025Annual contract value +31% including Preqin, +16% organic
Contracted, recurring, and indifferent to what equity markets did - the only line in the company with that property.

Aladdin earned $1,981 million in 2025, up 24% from $1,603 million1. Annual contract value grew 31% including the Preqin acquisition and 16% without it2. The clients are insurance companies, pension funds, banks, wealth platforms and — this is the part with no parallel anywhere else in this collection — other asset managers. Firms competing with BlackRock for mandates run those mandates on BlackRock's system.

Why they tolerate it is worth stating plainly, because it is the moat. A risk and portfolio management platform is not a piece of software you install. It is the language the whole firm speaks: the portfolio manager's positions, the risk team's models, the operations group's trade settlement, the client reporting, the regulatory filings. Replacing it means retraining everyone, remapping every instrument, revalidating every model, and running both systems in parallel for a year while you prove the new one gives the same answers. Firms do it roughly once a generation.

The second reason is that the alternative is worse. Building an equivalent internally means committing a large permanent engineering organisation to a problem that is not your business, in service of a capability your competitors can simply buy. Most firms that tried have ended up buying anyway.

What makes this genuinely valuable to BlackRock's shareholders rather than merely interesting is the revenue's character. It is subscription-based and contracted, it does not move with markets, and it grows when clients add users and modules rather than when equities rise. In a company where 79% of revenue is a percentage of asset values3, $2 billion that is not is worth more than its size suggests.

The limit is that the strategic tension never resolves. Every Aladdin client would prefer, all else equal, not to depend on a competitor. All else is not equal, which is why they stay. But it means BlackRock is selling into a market where the customer's structural preference is against it, and the moat rests on the switching cost rather than on affection.

Moat trajectory: Widening

Revenue up 24% and annual contract value up 31%, with Preqin adding a data layer for the asset class clients are allocating to fastest. Organic growth of 16% says the platform is still winning on merit rather than by purchase — the number to keep watching.

The number that tests this moat
Reported
Technology revenue growth
+24% to $1,981M

Up from $1,603M in 2024, with annual contract value up 31% including Preqin. The line does not move with asset prices, which is what makes it worth more than its 8% share of revenue. Watch it through a drawdown.

Source: BlackRock Form 10-K, fiscal year 2025 ↗
Aspects of the moat
DIG DEEPER 01
One Language for the Whole Firm
What Aladdin sells is not software but vocabulary, and changing the language a firm speaks takes years and ends careers.
DIG DEEPER 02
eFront, Preqin and the Private Side
Public markets became indexable because they became measurable — BlackRock has bought the measuring apparatus for the ones that are not.
DIG DEEPER 03
Aladdin Wealth and the Adviser's Screen
BlackRock cannot reach the individual investor, so it supplies the analytics to the person who can.
DIG DEEPER 04
Two Billion Dollars That Does Not Move With Markets
The only line in the company not levered to asset prices — and 16% of its growth was organic, not the 31% in the headline.
⚠ Threats to the moat
⚠ THREAT 01
A Single Platform Is a Single Point of Failure
A concentration BlackRock creates for everyone else, and the reason regulators are writing rules about critical technology providers.
⚠ THREAT 02
The Clients Who Are Large Enough to Build It
Every buyer has a structural preference against depending on a rival, and the cost of acting on it keeps falling.
References
  1. ReportedAladdin earned $1,981 million in 2025, up 24% from $1,603 million
    BlackRock, Inc. Form 10-K, FY2025, Item 1 Business — Aladdin Enterprise, Aladdin Risk, Aladdin Wealth, eFront, Preqin and Cachematrix; "while Aladdin is a multi-asset system, the majority of positions managed on the platform are fixed income"; the March 2025 Preqin acquisition "added private markets data capabilities to its existing Aladdin and eFront workflow offerings, creating a preeminent private markets technology and data provider" and "as clients' private market allocations continue to grow, they will require more standardized and transparent data on their investments, creating an additional growth opportunity for Preqin"; index AUM within or above applicable tolerance of 95%, 96% and 99% across the disclosed periods; retail investors "are served principally through intermediaries, including broker-dealers, banks, trust companies, insurance companies and independent financial advisors" and "technology solutions, digital distribution tools and a shift toward portfolio construction are increasing the number of financial advisors and end-retail investors using BlackRock products" — FY2025 · publ. February 2026 · source ↗
  2. ReportedAnnual contract value grew 31% including the Preqin acquisition and 16% without it
    BlackRock, Inc. Form 10-K, FY2025, MD&A — total revenue $24,216M against $20,407M in 2024; base fees and securities lending $19,179M against $16,100M, including securities lending revenue of $705M against $615M; performance fees $1,424M against $1,207M, of which private markets $695M against $308M and liquid alternatives $558M against $680M; technology services and subscription revenue $1,981M against $1,603M, an increase of $378M "reflecting the sustained demand for Aladdin technology offerings and approximately $210 million of revenue related to the Preqin Transaction"; distribution fees $1,355M; advisory and other revenue $277M; annual contract value growth of 31% including Preqin and 16% excluding it; employee compensation and benefits $8,446M — FY2025 · publ. February 2026 · source ↗
  3. ReportedIn a company where 79% of revenue is a percentage of asset values, $2 billion that is not is worth more than its size suggests
    BlackRock, Inc. Form 10-K, FY2025, Item 1 Business — assets under management of $14.0 trillion at 31 December 2025 (long-term $12,960,786M plus cash management $1,080,732M); equity $7,793,875M, fixed income $3,272,021M, multi-asset $1,223,625M, alternatives $423,614M, digital assets $78,435M, currency and commodities $169,216M; five-year AUM CAGR 10%, alternatives 22%, multi-asset 13%, equity 12%, currency and commodities 17%, fixed income 4%; by style, active $3,432,743M, non-ETF index $4,060,333M, ETFs $5,467,710M; approximately 24,900 employees in more than 30 countries serving clients in over 100 — FY2025 · publ. February 2026 · source ↗
Sources
Generated September 23, 2026