# Berkshire Hathaway Class B Price in Caterpillar (BRKB/CAT)

Canonical: https://spotgold.co/price/brkb/cat

1 share = 0.5946 CAT shares

| Field | Value |
| --- | --- |
| Base | BRKB (share) |
| Quote | CAT (share) |
| Base source and UTC timestamp | Yahoo Finance · 2026-10-02T20:00:03.000Z · market reference per share; may be delayed |
| Quote source and UTC timestamp | Yahoo Finance · 2026-10-02T20:00:02.000Z · market reference per share; may be delayed |

## Calculation

Pair price = USD value of one base unit / USD value of one quote unit. Gold weights use 31.1034768 grams per troy ounce. Other metals use troy ounces; copper uses pounds; oil uses barrels; natural gas uses MMBtu; stocks and ETFs use shares. Energy and copper histories are futures references.

Historical charts match historical observations for both sides by UTC date (within 15 minutes for intraday); daily FX references can carry over holidays for up to 4 days. Coverage is limited to overlapping available history. Missing history is unavailable, never replaced with today's rate. Different market closing times and futures rolls can affect comparisons.

- [Reverse pair](https://spotgold.co/price/cat/brkb)
- [Price JSON](https://spotgold.co/api/price?base=BRKB&quote=CAT&unit=oz)
- [History JSON](https://spotgold.co/api/history?base=BRKB&quote=CAT&unit=oz&range=1Y)
- [All denominations](https://spotgold.co/markets/brkb)

Reference prices exclude premiums, fees, and taxes. Cite both providers and timestamps; availability does not imply a live executable price.