Notice Rule

Notice of Filing of Proposed Rule Change To List and Trade Shares of the Following Under NYSE Arca Equities Rule 8.200: ProShares Short DJ-UBS Natural Gas, ProShares Ultra DJ-UBS Natural Gas and ProShares UltraShort DJ-UBS Natural Gas

National Securities Exchanges, NYSE Arca (NYSEARCA)

Last Reviewed or Updated: May 11, 2011