Variance rule


Specifies the permitted minimum or maximum quantity of securities that can be delivered to satisfy a TBA trade. For Ginnie Mae, Fannie Mae, and Freddie Mac pass-through securities, the accepted variance is plus or minus 2.499999 % per million of the par value of the TBA quantity.

Investing Essentials

Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

Term of the Day


Order ticket that shows the stock, price, number of shares, type, and account of the order. Origin: Practice of placing the ticket on a metal spike upon execution or cancellation. Spike is also a... Read More

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