Same here! I figured the shift had to be a letter shift, which I tried both directions. But I kept finding myself trying to associate the new stock ticker, to a historical date in time, such as the closing cost. And to make things further, I figured the reference to NYSE had some tie in to the puzzle.

Fortunately I took a night to rest on it, woke up and simplified my thoughts. At some point, I realized the letters contained too many common letters for it to not be part of the solution.

I was looking waaaaaaaaay too into this one, even going so far as to read through articles about the state of the stock market on these dates and seeing if I could find the acronyms anywhere. I had to use all three hints before I realized I was going about it the wrong way, and even after arranging the letters by date, I thought it was one long word and that I still got it wrong.

I love the "shifty financial" theme and title, though Arrange it by date threw me. I had figured most other things out, but of course reading top to bottom ERTIDINS... didn't quite make sense. So I tried shifting the dates (but what to make of 10 28 08) and other similar attempts

The graphics/description are what make the puzzle for me though