The claim that the top 1% have realized 95% of the increase in wealth over the past decade is spurious. I think the original study[1] that claim came from only argued that was the case for percentages of income growth, which is not wealth, and only true from 2009 - 2012.
I think it has been propagated since then as a different claim that the top 1% had 95% of the increase in all the wealth for the past decade. I don't think there is any evidence for this stronger claim.
I think it has been propagated since then as a different claim that the top 1% had 95% of the increase in all the wealth for the past decade. I don't think there is any evidence for this stronger claim.
[1]: https://eml.berkeley.edu/~saez/saez-UStopincomes-2012.pdf