Regulators face an Oct. 18 deadline for adopting "rules to carry out" the Volcker rule, which would limit financial firms from using their own money to make trades. However, regulators have yet to agree on a draft proposal. SIFMA warned last year that the Volcker rule could result in "higher funding and debt costs for U.S. companies." SIFMA also said the changes would bolster inefficiencies in trading that would lead to "lower returns over time for investors."