Can you provide some references? This is an honest question, I am just stunned that this did not cause major account fragmentation (fat cats splitting millions into 500k chunks). Just googling (which, granted, is not truth) seems to point to major news outlets confirming that customer accounts were safe.

To clarify, I am talking about customers who held money at LB invested in mutual funds or securities. If the account had a mix M of securities before LB collapsed they would have the same mix once the dust settled and LB account was forced to whatever other brokerage. If this is incorrect (not for some advanced hedge funds, etc. but for retail customers) I would love to know.

If you are talking about folks who held LB stock or bonds, they sure did lose money when the company went bankrupt, but that is not unexpected. Stocks fluctuate in price and some go all the way to zero; for every Google there are a few KMarts, Sears or Enrons.