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Any time the value of TRIN looks suspicious to me, I calculate it myself.
In fact, it's easy to do a quick mental calculation to detect gross errors.
Find the ratio of advancing issues to declining issues (adv/decl) and divide
this by the similar ratio of advancing to declining volume.
Carroll Slemaker
-----Original Message-----
From: Nixon(MLS) <mbjp57@xxxxxxxxxxxxxx>
To: omega-list@xxxxxxxxxx <omega-list@xxxxxxxxxx>
Date: Friday, June 11, 1999 4:16 AM
Subject: TRIN values
>Thanks to all who responded to my request yesterday for levels of TRIN.
>
>At 10 ET yesterday Comstock and Quote.com had TRIN around 108/109 whilst
the
>rest (FS, DTN, Signal, BMI) had values around 89. Given that the market
>was down so heavily at the time the difference was quite significant for
>short term SP traders such as myself. The seemingly low TRIN reading lead
>me to hesitate in going short on the first major pullback which under any
>other circumstance was about as much of a no-brainer as you can get.
>
>FS had been having delays in their TICK feed and I was trying to ascertain
>if the same applied to TRIN. As it turned out the difference was not one
>of time delay as it remained with a 10/20 point differential until at least
>midday.
>
>Having said that I am still not sure why there is a difference and which is
>the right number. I had assumed that the number was taken direct from the
>NYSE but that may not be so. Is it calculated individually by each data
>vendor?
>
>If anyone could shed some light I would appreciate it. It is a valuable
>indicator but worse than useless if wrong.
>
>regards
>
>Philip Nixon
>
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