BRK.A vs BRK.B: What Is the Difference?
One Class B share (BRK.B) carries 1/1,500 of the economic rights of a Class A share (BRK.A) and 1/10,000 of its vote. Economically, 1,500 B shares equal one A share; the B share exists so that investors can buy Berkshire without paying the price of a whole A share.
| Line | Price | Fair Value | Upside |
|---|---|---|---|
| BRK.A Class A · 1 vote per share | $856,612 | $595,185 | −30.5% |
| BRK.B Class B · 1/10,000 of an A vote | $571 | $397 | −30.5% |
more than 10% below fair value (cheap)near fair value (±10%)more than 10% above fair value (expensive)
Closing prices from Nov 6, 2026. Fair value from 26 models, updated daily. Not financial advice.
Conversion
A holder can convert one A share into 1,500 B shares at any time. The reverse is not possible.
Which index?
Frequently asked questions
What is the difference between BRK.A and BRK.B?
One Class B share (BRK.B) carries 1/1,500 of the economic rights of a Class A share (BRK.A) and 1/10,000 of its vote. Economically, 1,500 B shares equal one A share; the B share exists so that investors can buy Berkshire without paying the price of a whole A share.
Which is better, BRK.A or BRK.B?
For the same stake in Berkshire Hathaway, both lines cost practically the same today (per 1/1,500 of an A share). We value Berkshire Hathaway once: fair value $397 per BRK.B share, so $595,185 per BRK.A share (1,500 times). If you want a vote, pick the voting class; economically, the price per stake is what counts. Not financial advice.
Can you convert BRK.A into BRK.B?
A holder can convert one A share into 1,500 B shares at any time. The reverse is not possible.