[3rdAccount]

A+ was invented by Arthur Whitney for JP Morgan (iirc). I'm sure they have some things in house still using it, but that it's mostly been deprecated by Whitney's Kdb+ environment which is sold by Kx Systems. It is the APL like "K" language bundled with a database generally run on SSD. I believe it is quite pricey.

[patrickg_zill]

According to the aplusdev.org site it's Morgan Stanley. I have zero knowledge of what the current status is inside that or any other company.

[3rdAccount]

Ah, similar name. Thanks for pointing out my mistake.