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electronic auctions

The companies, products and regulatory developments shaping the broker industry.

BOX Exchange files electronic FLEX options auction rules, extending trading beyond its floor

An SEC notice sets out electronic price-improvement and solicitation auctions for customised equity options, but leaves launch access and operational readiness as separate questions.

7 Nov 2026News3 min read

Regulation & enforcement

BOX Exchange files electronic-auction framework for customised FLEX equity options

BOX has filed rules for FLEX equity options in electronic auctions; the SEC notice concerns market structure and permissions, not proof that a new product is already trading at scale.

5 Nov 2026News3 min read