1. The additional
price one pays when one
buys a
security from a
broker-dealer. That is, when one buys a security, one pays the broker-dealer an extra percentage or a flat
fee as
commission. This markup forms the bulk of the broker-dealer's
income.
2. See:
Spread.
3. The extra amount a
retailer charges a customer for a good over and above what it paid the
wholesaler. For example, if one pays Wal-Mart $20 for a toaster, and Wal-Mart bought it from the manufacturer for $15, the markup is $5.