BRK.B Market Structure
Berkshire Hathaway Inc. (BRK.B) operates in the Financial Services sector, specifically the Insurance - Diversified industry, with a market capitalization near $1.02T, listed on NYSE, employing roughly 392,400 people, carrying a beta of 0.62 to the broader market. Berkshire Hathaway Inc. Led by Gregory Edward Abel, public since 1996-05-09.
Market structure data reveals where a stock trades across exchanges, dark pools, and alternative trading systems. Understanding off-exchange activity helps identify institutional trading patterns and liquidity dynamics.
- Latest Week Ending
- 2026-05-11
- Weekly OTC Shares
- 6.2M
- Weekly OTC Trades
- 212.2K
- 12-Week Total Shares
- 76.9M
- Avg Trade Size (12-Week)
- 32 shares
How Single-Name Off-Exchange Volume Affects Options
For single-name equities, persistent off-exchange volume concentrations can flag institutional positioning - large blocks arranged through ATS venues to avoid lit-market impact, or correlation-arbitrage flow from sector rotation. The flow doesn't directly move the lit-market price (it prints at the ATS) but it changes the inventory position of the institutional counterparty, which then drives subsequent lit-market flow. Compare the off-exchange volume series above with BRK.B's gamma exposure and options volume history to see whether unusual dark-pool activity coincides with rebalancing in the options book.
Showing 12 weeks of off-exchange trading data for Berkshire Hathaway Inc..
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Frequently asked BRK.B market structure questions
- What is the current BRK.B off-exchange volume?
- For the week ending May 11, 2026, Berkshire Hathaway Inc. (BRK.B) recorded 6.2M shares across 212.2K trades (average trade size 29 shares). The 12-week cumulative total is 76.9M shares.
- What does BRK.B off-exchange volume mean for traders?
- Off-exchange volume on a single-name equity reflects institutional block trades arranged through alternative trading systems (ATS) for liquidity rather than information reasons. Persistent ATS volume on a name can signal large institutional repositioning; the lit-market price impact lags the off-exchange print by hours to days as the institutional counterparty hedges or unwinds.
- How is BRK.B market-structure data sourced?
- Weekly off-exchange volume figures come from FINRA's OTC Transparency reporting, which captures trades executed through FINRA-member off-exchange venues including ATSs and member firm internalization desks. FINRA publishes the data with a two-week lag (current-week-minus-two-weeks) for ATS-specific volume and weekly aggregate volume; the totals here aggregate all member firm reporting. Trades cleared via the listed-exchange auction are NOT included; the figure reflects only the off-exchange portion of total volume.