MKL Market Structure
Markel Corporation (MKL) operates in the Financial Services sector, specifically the Insurance - Property & Casualty industry, with a market capitalization near $22.78B, listed on NYSE, employing roughly 22,000 people, carrying a beta of 0.67 to the broader market. Markel Corporation, a diverse financial holding company, markets and underwrites specialty insurance products in the United States, Bermuda, the United Kingdom, rest of Europe, Canada, the Asia Pacific, and the Middle East. Led by Thomas Sinnickson Gayner, public since 1986-12-12.
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
- 2026-04-20
- Weekly OTC Shares
- 40.3K
- Weekly OTC Trades
- 5.5K
- 12-Week Total Shares
- 504.2K
- Avg Trade Size (12-Week)
- 8 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 MKL'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 Markel Corporation.
Learn how market structure is reported and how to read the data →
Frequently asked MKL market structure questions
- What is the current MKL off-exchange volume?
- For the week ending Apr 20, 2026, Markel Corporation (MKL) recorded 40.3K shares across 5.5K trades (average trade size 7 shares). The 12-week cumulative total is 504.2K shares.
- What does MKL 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 MKL 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.