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Appropriate ongoing adjustments to security holder records.

Maintenance Margin

The money or securities an investor keeps in a margin account in order to be able to borrow from a brokerage for short sales or other purposes. The maintenance is kept as collateral until the brokerage calls the margin and the client pays back what is owed. FINRA requires that the maintenance kept must be at least 25% of the amount borrowed, while some brokerages require maintenances of up to 50%. See also: Restricted account.


the management process of repairing and maintaining buildings, plant, machinery and equipment to avoid breakdowns and disruption to production. Effective maintenance requires the firm to draw up appropriate plans and timetables, taking into account the frequency of maintenance required, available personnel, ordering and stocking of spare parts etc.

The maintenance function provides an important service to production, marketing and administration departments. Routine maintenance within a firm is often undertaken by the firm's own maintenance department, while major refurbishment of machines may be contracted to specialist outside firms.



The care and upkeep of a building to keep it in roughly the same condition as when it was first built,except for natural changes in the patina of finishes.

References in classic literature ?
Norris had not the least intention of being at any expense whatever in her maintenance.
I had several visits of the like kind from him, but he never came into a settled way of maintenance, which was what I would have best pleased with.
The other half was to be employed by the municipal authorities of Zurich in the maintenance and education of a certain number of orphan girls, natives of the city, who were to be trained for domestic service in later life.
The new version includes 18 significant functional improvements designed to provide users with improved maintenance scheduling, inventory, requisitioning, purchasing and invoicing capabilities.
XA is Wonderware's powerful suite of AS/400 asset management solutions that enable enterprises to take a quantum leap forward in their maintenance and procurement operations.
An entity is anything for which the user wishes to retain complete costing and maintenance activity records.
Expanding its market focus to address real-time asset management functions for plant maintenance, Wonderware Tuesday announced MaintenanceSuite, a new, integrated suite of plant-centric software applications designed to improve manufacturing productivity and offer rapid response asset management tools.
MaintenanceSuite can be combined with Wonderware's flagship FactorySuite industrial automation software to enable the seamless integration of manufacturing production, equipment utilization and preventive maintenance scheduling and optimization.

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