Random Walk: An economic theory that market price movements move randomly. This assumes an efficient market. The theory also assumes that new information comes to the market randomly. Together, the two assumptions imply that market prices move randomly as new information is incorporated into market prices. The theory implies that the best predictor of future prices is the current price, and that past prices are not a reliable indicator of future prices. If the random walk theory is correct, technical analysis cannot work.
Ratio Spread: This strategy, which applies to both puts and calls, involves buying or selling options at one strike price in greater number than those bought or sold at another strike price. Ratio spreads are typically designed to be delta neutral. Back spreads and front preads are types of ratio spreads.
Regular Warehouse: A processing plant or warehouse that satisfies exchange requirements for financing, facilities, capacity, and location and has been approved as acceptable for delivery of commodities against futures contracts. See Licensed Warehouse.
Replicating Portfolio: A portfolio of assets for which changes in value match those of a target asset. For example, a portfolio replicating a standard option can be constructed with certain amounts of the asset underlying the option and bonds. Sometimes referred to as a synthetic asset.
Repo or Repurchase Agreement: A transaction in which one party sells a security to another party while agreeing to repurchase it from the counterparty at some date in the future, at an agreed price. Repos allow traders to short-sell securities and allow the owners of securities to earn added income by lending the securities they own. Through this operation the counterparty is effectively a borrower of funds to finance further. The rate of interest used is known as the repo rate.
Reporting Level: Sizes of positions set by the exchanges and/or the CFTC at or above which commodity traders or brokers who carry these accounts must make daily reports about the size of the position by commodity, by delivery month, and whether the position is controlled by a commercial or non-commercial trader. See the Large Trader Reporting Program.
Retail Customer: A customer that does not qualify as an eligible contract participant under Section 1a(12) of the Commodity Exchange Act, 7 USC 1a(12). An individual with total assets that do not exceed $10 million, or $5 million if the individual is entering into an agreement, contract, or transaction to manage risk, would be considered a retail customer.
Retender: In specific circumstances, some exchanges permit holders of futures contracts who have received a delivery notice through the clearing organization to sell a futures contract and return the notice to the clearing organization to be reissued to another long; others permit transfer of notices to another buyer. In either case, the trader is said to have retendered the notice.
Reverse Conversion or Reversal: With regard to options, a position created by buying a call option, selling a put option, and selling the underlying instrument (for example, a futures contract). See Conversion.
Reverse Crush Spread: The sale of soybean futures and the simultaneous purchase of soybean oil and meal futures. See Crush Spread.
Roll-Over: A trading procedure involving the shift of one month of a straddle into another future month while holding the other contract month. The shift can take place in either the long or short straddle month. The term also applies to lifting a near futures position and re-establishing it in a more deferred delivery month.
Runners: Messengers or clerks who deliver orders received by phone clerks to brokers for execution in the pit.