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To: Zirdu who wrote (2246)1/28/1998 11:23:00 AM
From: mod  Respond to of 7111
 
Since short interest is suddenly a big interest to us, I thought the
following explanation of how it is calculated, from NASDAQ, might be
of interest.

----------------------------
How is short interest in Nasdaq stocks calculated?

Short selling is the selling of a security that the seller does not
own, or any sale that is completed by the delivery of a security
borrowed by the seller. Short selling is a legitimate trading
strategy. Short sellers assume the risk that they will be able to buy
the stock at a more favorable price than the price at which they sold
short. The Nasdaq Short Sale Rule prohibits NASD members from selling
a Nasdaq National Market stock at or below the inside best bid when
that price is lower than the previous inside best bid in that stock.

To calculate short interest in Nasdaq stocks, NASD member firms are
instructed to report to the NASDR TS-Customer Advocacy & Quality
Management Department, on a monthly basis, their short positions,
for all accounts, in shares, warrants, units, ADRs, and convertible
preferreds resulting from short sales. Once the short position
reports are received by the Product Deployment and Support
Department, the short interest is then compiled for each Nasdaq
security.

Firms are required to report their short positions as of settlement
on the 15th of each month, or the preceding business day if the 15th
is not a business day. The reports must be filed by the second
business day after the reporting settlement date. The Product
Deployment and Support area compiles the short interest data and
provides it for publication on the 8th business day after the
reporting settlement date.

Publication Schedule for 1998

Trade Settlement Dissemination Publication
Date Date Date Date

January 01/12/98 01/15/98 01/27/98 01/28/98
February 02/10/98 02/13/98 02/25/98 02/26/98
March 03/10/98 03/13/98 03/24/98 03/25/98
April 04/09/98 04/15/98 04/24/98 04/27/98
May 05/12/98 05/15/98 05/27/98 05/28/98
June 06/10/98 06/15/98 06/24/98 06/25/98
July 07/10/98 07/15/98 07/24/98 07/27/98
August 08/11/98 08/14/98 08/25/98 08/26/98
September 09/10/98 09/15/98 09/24/98 09/25/98
October 10/09/98 10/15/98 10/26/98 10/27/98
November 11/09/98 11/13/98 11/24/98 11/25/98
December 12/10/98 12/15/98 12/24/98 12/28/98

Trade Date: Date market makers report the number of shares they sold short

Dissemination Date: Date information is sent to wire services. Data
may be available to view on Tandem after 4:00 p.m.

Publication Date: Issues' short positions printed in newspapers