There are significantly more whites in the United States. All this means is some of the whites who had riskier investments, ended up with more money. This is what you'd expect based on the math, and doesn't say a thing about whites vs blacks in terms of investing style.

I'm totally not understanding what the race ratio in the US has to do with this.

The excerpt makes it very clear that black families and white families of identical income levels invest differently. It's not about riskier investments paying off, or how many black vs white families there are at any income level. It's about the types of investments that black familes make (mostly CDs, savings bonds, and real estate) compared to equivalently wealthy white familes (mostly stocks and businesses).

Your reply sounds like you're jumping to defend against an accusation of racism, but there's no racism in the original post. If anything, the link is saying that black families aren't investing very smartly and could learn from white families who take on more risk.

"The excerpt makes it very clear that black families and white families of identical income levels invest differently."

This is correct. From the data, it does show the top 5% invest differently.

"If anything, the link is saying that black families aren't investing very smartly and could learn from white families who take on more risk."

This conclusion, however, cannot be made from this data, because it's based on the statistic that the top 5% white investors have a 6.5x higher net worth. You can't make a conclusion when the results of the strategy taken by the other group is based on chance, and they have a many times greater population.

For all we know from this data, whites have a 10x higher chance of going bankrupt due to risky investing, and therefore are worse off on average.

For all we know, both population groups invest exactly the same way. When one population group has something like 10x more people, that end of the bell curve will always be higher.

For all we know, the top 5% of whites got there by taking risks that only pay off at a rate of one in 50 million, so the sample size of blacks is too small to have any winners yet.

For what it's worth, I think your conclusion is correct, but we can't get there from this data.