Uniswap has repurchased and burned about $28.4 million worth of UNI through its fee mechanism so far this year, Castle Labs data shows. Most of those fees came from Ethereum, but Robinhood Chain has become a more significant driver after the fee switch (a protocol setting that redirects revenue) was activated. Since late July, Robinhood Chain has accounted for roughly 50% or more of UNI's daily burn on most days, with its share nearing 70% on some dates. In total, Robinhood Chain has contributed about $2.26 million to UNI buybacks.