Cost Basis Explained for Corporate Crypto Holdings

What Is Cost Basis?

Cost basis is the total amount a company paid to acquire its cryptocurrency holdings. It is the starting point for calculating unrealized gains and losses — the difference between what was paid and what the holdings are currently worth.

Types of Cost Basis

DATFlow tracks two related metrics:

• Cumulative cost basis (cumBasis) — the total dollar amount spent on all crypto acquisitions to date. This is the running total reported in SEC filings
• Average cost basis (avgBasis) — cumBasis divided by total holdings. This gives the average price per coin across all purchases

Where Does Cost Basis Come From?

For public companies, cost basis data appears in SEC filings:

• 10-K / 10-Q filings — quarterly and annual reports include the carrying value of digital assets on the balance sheet, typically reflecting cumulative cost basis
• 8-K filings — press releases may disclose specific purchase amounts and prices for individual acquisitions
• 6-K / 20-F filings — international companies file these with similar disclosures

DATFlow extracts these values directly from filings. When a filing only reports holdings without cost data, the cost fields are left empty rather than estimated — accuracy over completeness.

How to Read Cost Basis on DATFlow

On each holder's detail page, you'll see:

• CUM_BASIS — total amount spent on crypto to date
• AVG_COST — average price paid per coin
• UNREALIZED_PNL — the paper gain or loss based on current prices minus cost basis
• P&L % — unrealized P&L as a percentage of cost basis

These metrics update in real time as crypto prices change, while the cost basis itself only updates when new filings are processed.

Why It Matters

Cost basis reveals whether a company bought early or late, at low prices or high. Two companies holding the same amount of BTC can have vastly different cost bases, meaning different risk profiles and unrealized returns. Comparing average cost across holders helps investors understand who has the strongest position relative to current market prices.