In commodities and securities trading, the highest bid to buy and the lowest offer to sell a commodity or security in a given market at a given time.
在商品及證券交易中，於給定時間在給定市場作出的最高購買出價及最低發售價格。n.

• Rescission ab initio
• Rescue cases
• Rescuer
• Resealing
• Research
• Reservation
• Reservation in Government Grant
• Reservation of easement
• Reservation of title
• Reserved land
• Reserve of retained earnings
• Reserve price
• Reserve share capital
• Reservoir
• Reservoir test
• Res gestae
• Residence
• Residence test
• Resident
• Residential flat building
• Residential premises
• Residential tenancy
• Residential tenancy agreement
• Residual powers
• Residuary