ADTN Market Structure

ADTRAN Holdings Inc. (ADTN) operates in the Technology sector, specifically the Communication Equipment industry, with a market capitalization near $1.10B, listed on NASDAQ, employing roughly 3,202 people, carrying a beta of 1.43 to the broader market. ADTRAN Holdings, Inc. Led by Thomas R. Stanton, public since 1994-08-11.

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
2026-05-25
Weekly OTC Shares
5.5M
Weekly OTC Trades
20.1K
12-Week Total Shares
45.2M
Avg Trade Size (12-Week)
391 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 ADTN'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 ADTRAN Holdings Inc..

Learn how market structure is reported and how to read the data →

Frequently asked ADTN market structure questions

What is the current ADTN off-exchange volume?
For the week ending May 25, 2026, ADTRAN Holdings Inc. (ADTN) recorded 5.5M shares across 20.1K trades (average trade size 274 shares). The 12-week cumulative total is 45.2M shares.
What does ADTN 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 ADTN 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.