Report Foreword: This report on futures trading in onions presents basic information brought together by the Commodity Exchange Authority in the period since September 2h$ 1955, when regulation of onion futures trading under the Commodity Exchange Act became effective. Much of the statistical data contained in this report was presented in a public hearing before the Commodity Exchange Commission at Chicago, on April 10, 1956, when the establishment of speculative limits for onions was recommended. Such limits were subsequently established by the Commission, and went into effect on September 1, 1956. The report is intended to provide useful information on the general character and utilization of the onion futures market, giving particular attention to onion price fluctuations, the operations of large traders, and the relationship between trading in futures and the marketing of onions.