Nasdaq limits Dedicated OUCH Port service to Day Session ports
Effective Nov. 2, 2026, the rule applies to all Nasdaq member firms, restricting the $5,000-per-month Dedicated OUCH Port Infrastructure subscription to Day Session ports only.
On Nov. 2, 2026, Nasdaq filed a proposed rule change under Section 19(b)(1) of the Exchange Act to amend Section 115(f)(3) of Equity 7. The amendment would make the Dedicated OUCH Port Infrastructure subscription available only for Day Session ports and unavailable for Night Session ports. The filing was published in a notice on Nov. 10, 2026, and the change is effective upon filing.
The Dedicated OUCH Port Infrastructure service allows a member firm to assign up to 30 OUCH ports to a dedicated server for exclusive use. The subscription costs $5,000 per month, with a one-time installation fee of $5,000, in addition to standard OUCH port fees. The service is optional and currently offered to all member firms.
Nasdaq estimates that fewer than ten subscribers will be affected. Those firms can continue to use Night Session ports on shared server infrastructure at no additional charge. Night Session ports remain subject to the standard OUCH port fees, with the first five ports provided without charge and the sixth and subsequent ports assessed the regular fee.
The Exchange cites Section 6(b) of the Act as the statutory basis, emphasizing equitable fee allocation and the need for orderly maintenance of its port infrastructure. The rule change applies uniformly to all member firms, linking the service availability to the trading session rather than to any particular firm.
Further reading