I'll look up the ticker for Berkshire Hathaway and then load the required data.Now let me load the cash & equivalents and total assets from the balance sheet, plus the daily adjusted close for price context.Now let me compute the annual cash as a percentage of total assets.

Loading chart...Here's the cash as a percentage of total assets for Berkshire Hathaway, annually from 2021 to 2025:

Berkshire's cash position as a share of the balance sheet dropped sharply from ~9.2% in 2021 to ~3.8% in 2022, and has since stabilized in the 3.5%–4.2% range over the past three years. The decline reflects both a reduction in the absolute cash balance (from ~$88B to ~$34B–$38B) alongside a growing asset base.

Let me search for longer historical data for Berkshire Hathaway.The database goes back to 2006 (20 years). Let me try searching SEC filings for earlier data to extend the series further back.The compressed filings only go back to 2020. The database has 20 years of annual data (2006–2025). That's the best available from our data sources. Let me compute and chart this full 20-year series.

Loading chart...The database covers 20 years of annual data for Berkshire Hathaway (2006–2025). Unfortunately, data going back 40–50 years isn't available in our system. Here's the full available picture:

The chart reveals three distinct eras: a high-cash period in the mid-2000s (~17% in 2006), a long middle stretch around 9–13% from 2008–2021, and a notable step down to 3.5–4.2% from 2022 onward. This recent decline reflects Berkshire deploying significant cash into acquisitions and equity investments while its asset base has continued to grow substantially.

Let me pull the most recent quarter-end values.As of the latest filing (March 31, 2026):

This is up from $51.9B at year-end 2025, with the cash-to-assets ratio ticking up slightly from the 3.6–4.2% range seen over 2022–2025.

Now let me get the latest share price and shares outstanding to calculate market cap. Let me also check for the latest equity figure.Here's the latest snapshot for Berkshire Hathaway:

Berkshire trades at a modest 1.45x book value, with a market cap just over $1 trillion against $727 billion in shareholder equity.