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1. An improvement to an existing product. Some companies, especially technology companies, offer upgrades to customers for free or at a discount.

2. An improvement to the quality of securities in a portfolio. For example, one may sell a stock with a given risk and return and buy another stock with a higher return at the same level of risk. Alternatively, a security may upgrade by itself; for example, its issuer may announce higher than expected earnings, and, therefore, a higher dividend.

3. An increase in a bond rating. For example, if a bond goes from a junk rating to an investment-grade rating, the bond is said to be upgraded. This usually occurs when the issuer reduces its exposure to one or more risks.


to replace an existing COMPUTER system (HARDWARE and/or SOFTWARE) by a more powerful model capable of processing data faster or storing larger amounts of data. When upgrading, computer users can experience problems of compatibility with existing programs and machines.
References in periodicals archive ?
The problem is, building a new upgrader - a tangle of pipes and vessels that transforms raw bitumen into an oil product easily used by standard refineries -- costs billions of dollars and may make little sense over the long term.
Venezuela's 190,000-barrel per day (bpd) Petrocedeno heavy crude upgrader resumed operating at its normal capacity, after weeks of maintenance, a source at state oil company PDVSA said.
The Totara upgrader will clean the raw biogas, generated by anaerobic digestion of the waste, to over 98% pure biomethane, matching the purity criteria needed of natural gas being piped to households and commercial premises.
Both Suncor and Syncrude operate upgraders or refineries in the area to further refine bitumen into useful byproducts such as naptha, fuel oil, and kerosene.
Mathcad 8 QuickStart, ideal for upgraders, offers customers an affordably priced, self-paced electronic course that covers the new features and functionality of the software.
To further emphasize that System Commander 98 is a true safety net for Windows 98 upgraders, they said, "Go ahead, upgrade to Win98.
In the JV Sincor upgrader became Petrocedeno Mixed Co.
ENERGY RESOURCE-15 May 2008-CORRECTION: Suncor Energy Shuts Down Upgrader as Part of Planned Maintenance(C)2008 JeraOne - http://www.
In the final JV, the Sincor upgrader became Petrocedeno Mixed Co.
ENERGY RESOURCE-12 May 2008-Suncor Energy Shuts Down Upgrader as Part of Planned Maintenance(C)2008 JeraOne - http://www.