The buy-side block trading venue has traded more than 7.7 billion shares worth $536bn since launch.
Investors need real-time portfolio pricing for execution efficiency.
Buy-side use of FX algos also surged in March as volatility increased.
AQSE aims to become the premier destination for both issuers and investors in growth companies.
BlackRock's Barbara Novick said the financial system remains vulnerable to another liquidity strain.
European equity and bond trading volumes were spread over 430 venues.
The buy-side owned and operated block trading destination celebrates its 5-year anniversary this month.
Clients need greater transparency on routing destination and venue analysis.
Automation was accelerated by the hectic trading triggered by the Covid crisis.
