APLS Market Structure

Apellis Pharmaceuticals, Inc. (APLS) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $5.25B, listed on NASDAQ, employing roughly 705 people, carrying a beta of -0.25 to the broader market. Apellis Pharmaceuticals, Inc. Led by Cedric Francois, public since 2017-11-09.

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

24.7M

Weekly OTC Trades

2.6K

12-Week Total Shares

106.8M

Avg Trade Size (12-Week)

1.1K 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 APLS'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 Apellis Pharmaceuticals, Inc..

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