Here's a bit of truth that you already know, but perhaps want someone else to say:
the TRIN is made of four parts -- that make up two ratios into a larger ratio.
a/b // c/d.
A little algebra will gives you
a/c // b/d.
that leaves the initial (cited) value *unchanged.* *That* means that those two interpretations are both valid.
[ a/b//c/d = a/c//b/d ]
Play around with it. Get the *intuition* behind it.....
AND THEN, ask: what of a climbing market, and a climbing TRIN??
(or, a sinking market and a sinking TRIN?)
(Watch the market closely on these days and the ones that immediately follow. Canaries!)
Just imagine that you are an institutional holder, and wish to move "a lot of stuff" on the market. Can you do it without showing your hand in the TRIN? Yowwwww-wie.
