Source: https://www.coingecko.com/en/coins/husd <-- 7-Day chart
And an article on this from The Block:
The Huobi-backed Stable Universal has stated in previous attestations that HUSD was wholly backed by cash reserves.
HUSD stablecoin loses US dollar peg, drops to $0.90 as liquidity shrinks
https://www.theblock.co/post/164281/husd-stablecoin-loses-us-dollar-peg-drops-to-0-90-as-liquidity-shrinks