R4(redirected from R/M4)
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Registered Representative Rapid Response Service
An automated system on the NYSE filling buy and sell orders for certain securities at the best available price. The system allows registered representatives to fill certain orders without resorting to a specialist.
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Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.