Thanks, though it may be easier to just let CNN or CNBC drone on in the background.I don't know about DAX, but CAC40 is pronounced in French like it's a word. Something like kɑk and then quarante (forty in French).
Search for videos on youtube, and you'll hear native speakers pronounce it.
Yep. Macs, stacks, hacks, racks...Germany. And actually you're right with Dacks (or even Dachs), but only if you pronounce it as a german would do. I assume you pronounce it more like (M)acs?