September Fee Notice: TXSE Auction Fees and Lead Market Maker Program

Dear Member,

TXSE Auction Orders

Effective Wednesday, September 16, 2026, TXSE will introduce fees for TXSE Auction Orders, pending regulatory approval.

Transaction fees will be $0.0012 per share for any Eligible Auction Order executed in a TXSE Opening, Closing, IPO, Halt or Volatility Auction as defined in TXSE Rule 11.022.

Lead Market Maker Program

TXSE has filed to adopt a tiered listing structure for exchange-traded products ("ETPs"), under which ETP issuers may select one of three listing tiers. In connection with this structure, the Exchange has also adopted three corresponding tiers of Lead Market Maker (LMM) Minimum Performance Standards, with daily stipends payable by the Exchange directly to LMMs that satisfy those standards. The Exchange determines daily, for each Minimum Performance Standard applicable to a given tier and asset class, whether an LMM has satisfied that standard and thus qualifies as a "Performant LMM."

The daily stipends are as follows:

An LMM in a Signature Tier Security will receive $34.75 daily for each Minimum Performance Standard in which the LMM is a Performant LMM.

An LMM in a Premier Tier Security will receive $17.37 daily for each Minimum Performance Standard in which the LMM is a Performant LMM.

An LMM in a Core Tier Security will receive $16 daily where the LMM is a Performant LMM in all seven Minimum Performance Standards.

The detailed Minimum Performance Standards per Tier can be found in Section F of the TXSE Fee Schedule or SR-TXSE-2026-027. All LMMs will be considered Performant LMMs for each trading day through October 2026 as the Exchange begins offering ETP listings and rolls out the LMM Program.

Sincerely,

TXSE Market Operations