Apple Computer Asset Management

In August 2018, the Wall Street Journal ran an op-ed titled "Apple Is a Hedge Fund That Makes Phones." While a bit of an exaggeration, the title was catchy because it was more or less true. As of June 30, 2018, Apple held roughly \$244 billion in cash and marketable securities. This comprised about 70% of its total assets, all managed out of an office in Reno, Nevada. This was an operation that most Apple employees (let alone the general public) had never heard of.

The most sophisticated cash operations in the world often fly under the radar. They sit inside operating companies, custodial platforms, payment networks, and they all run a version of the same playbook: hold a large pile of cash and deploy it into short-term fixed-income. More often than not, that means T-bills.

Braeburn Capital, the canonical example

Apple incorporated Braeburn Capital on October 3, 2005, in Reno, Nevada. The stated purpose was managing the company's growing cash hoard. The unstated benefit was that Nevada levies no state corporate income tax on investment gains.

The numbers grew with the iPhone. Apple's cash and equivalents peaked near \$268 billion in fiscal 2017. The fixed-income portfolio was larger than most dedicated bond funds.

The strategy reads straight from Apple's 10-K: investment-grade fixed income, single-issuer credit limits, principal preservation as the primary objective. Income yield on the portfolio rose from about 1.2% in 2014 to roughly 2.3% by 2018, and investment income ran near 9% to 11% of net income in those years...for the entire company!

Five ways to run corporate cash

While treasury management and investing idle cash can take different forms, the following table shows five concrete archetypes we find interesting.

Berkshire held \$339 billion in short-dated Treasury bills as of March 31, 2026. Consider this dry powder waiting to snap up bargain equity investments.

Airbnb sits on the float between the moment a guest places a deposit on a short-term rental and the moment a host gets paid. Bloomberg reported in 2018 that Airbnb had built an internal treasury team earning around \$5 million per month on the company's cash.

Ford Credit funds an auto-loan and lease book with term debt and securitizations. Different balance sheets, different reasons, one shared asset class at the core.

The convergence

For very different motivations, every archetype lands on short-term, high-grade fixed income. Berkshire wants liquidity and optionality. Airbnb wants yield on money it will owe back within days to months. Apple wants capital preservation on a sum that must be kept liquid in anticipation of cheap stock investments. The answer in each case is the front end of the yield curve.

The problem Apple solves at \$200 billion is the same problem a \$5 million corporate treasury faces. The difference is staffing. Braeburn-grade active management has been the preserve of companies large enough to put a trading desk in Reno. The rest of us park cash in a checking account (high yield for the more "sophisticated" among us) and collect whatever paltry yield is available. Few are actively choosing which tenor on the front curve to hold.

The newest archetype holds more Treasuries than Germany

Stablecoin issuers arrived at the same destination by a different road. Every USDT and USDC in circulation must be backed (or should be...we're looking at you Terra 😉) 1:1 by USD or other equivalents (i.e., T-bills).

Tether is the largest. Its Q1 2026 attestation, prepared by BDO as of March 31, 2026, reported \$117.04 billion in direct T-bills (about 61% of reserves) plus \$24.08 billion in reverse repos against Treasuries, for roughly \$141 billion in direct and indirect Treasury exposure. That is more than Germany's holdings of US Treasuries (~\$109 billion in the February 2026 TIC data). A company with a few hundred employees ranks among the largest holders of US government debt.

Tether did not start there. Its first reserve breakdown (occurring May 2021 for the quarter ended March 31) showed 49% of reserves in commercial paper (~\$30 billion at its mid-2021 peak). Under regulatory pressure, Tether eliminated commercial paper by October 2022 and rotated the position into short Treasuries.

Circle runs the same model with more disclosure. USDC reserves (~\$80 billion) sit primarily in the Circle Reserve Fund, an SEC-registered government money market fund managed by BlackRock, holding short-dated US Treasuries, overnight repo, and cash.

The structure is now law. The GENIUS Act, signed July 18, 2025, requires at least 1:1 reserve backing for US stablecoins in a short list of permissible assets: cash, Treasuries with 93 days or less remaining maturity, short-dated repo against Treasuries, and government money market funds. The short-bill model is no longer a choice for a US-regulated stablecoin issuers.

Tether and Circle together hold approximately \$220 billion in Treasury-linked instruments, roughly 3.5% of the \$6.5 trillion T-bill market. Standard Chartered projects \$800 billion to \$1 trillion in incremental T-bill demand by 2028.

What this means for everyone else

Five archetypes, one asset class. The companies that manage cash well treat the front of the yield curve as an active decision. Most of us will never have the resources available to these companies. What would you say if we told you that small businesses, start-ups, and retail investors could manage cash almost as effectively with resources readily available to anyone?

Exploring this will be the subject of our next two blog posts.