On October 19th, the SEC granted immediate effectiveness to NYSE Arca's proposed amendment of NYSE Arca Equities Rule 8.500 ("Trust Units") to provide that the issuers of Trust Units listed or traded pursuant to unlisted trading privileges may invest directly in investments comprising or otherwise based on any combination of futures contracts, options on futures contracts, forward contracts, swap contracts, commodities and/or securities rather than solely in the assets of a trust, partnership, limited liability company, corporation or other similar entity constituted as a commodity pool that holds such investments. Comments should be submitted within 21 days after publication in the Federal Register, which is expected during the week of October 25th. SEC Release No. 34-63129.