Tex. Bus. & Com. Code § 8.508
A securities intermediary shall act at the direction of an entitlement holder to change a security entitlement into another available form of holding for which the entitlement holder is eligible or to cause the financial asset to be transferred to a securities account of the entitlement holder with another securities intermediary. A securities intermediary satisfies the duty if:
Added by Acts 1995, 74th Leg., ch. 962, Sec. 1, eff. Sept. 1, 1995.