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1. See: Close a position.

2. To correct a mistake. For example, if an investor instructs his/her broker to sell a security and the broker instead buys it, the broker must re-sell the security, and pay the client what he/she may have lost in the mistake. This process is known as unwinding.


1. To close out a relatively complicated investment position. For example, an investor who practices arbitrage by taking one position in stocks and the opposite position in option contracts would have to unwind by the date on which the options would expire.
2. To rectify a transaction in which a mistake has been made. For example, because of a misunderstanding, a brokerage firm may have bought the wrong stock for a customer. The firm must then unwind the erroneous trade by selling the stock just purchased and buying the correct stock.
References in periodicals archive ?
This customized Pegase integrates both standard and some specially engineered solutions with special unwinders, splicing and slitting modules to accommodate wide mother rolls.
Both together ensures a fully NonStop operation for the unwinder and rewinder-slitter together achieving a line throughput not seen in the nonwoven industry.
Will be awarded the procurement and installation of a brand-new, modular and expandable modular inserting system with those necessary to fulfill the power requirement components of a mating roll unwinder, cutter and a camera reader module.
Elsewhere in Europe, Switzerland's Ringier Print added new ETR/C inserters with high-speed hoppers, precollecting and attached bundle line to its five existing Ferag systems (used for large Swiss dailies) to process USA Today and the Wall Street Journal Europe, a large weekly economic tabloid and a smaller special-interest tabloid; and Denmark's Helsingor Dagblad, which also prints part of the Jyllands-Posten circulation and dozens of contract titles, will add an SCC conveyor, inserting line, Minidisc winder and unwinder with handcarts.
The automatic turret unwinder TUW Series offers a quickchange function which means that a new roll begins automatically when the previous one is finished.
Full-service maintenance of OCE~ printer, assembly and unwinder and cutter in the mail / - pressure road.
Omet featured two recent innovations worthy of note: the double unwinder on XFlex X4, which is available across the range, and the flat-bed hot foil and embossing integrated in-line on the XFlex X6 offset with three UV flexo units, five offset sleeve groups, cold foil on rail, rotary diecutting and the 'Rock 'n Roll' matrix rewinder.
This compact design integrates the unwinder and rewinder in one machine frame, accepting rolls up to 600 mm in diameter and working width of 1600-2400 mm.
The recent high-speed model Smart-binder SB-3 'Plus HS' of the IBIS wiould be producing booklets from a digitally-print roll unwinder / cutter across Ipex at London's ExCeL from 24 - 29 March 2014.
Conceptual configuration, delivery, installation and operational handover of inserting including an unwinder for the role mining processing and environmentally sound disposal of old equipment, providing full service to the delivered components for at least 48 months.
Mondon's automatic turret unwinder TUW Series offers a quick-change function which means that a new roll begins automatically when the previous one is finished.