Think liquidity (which already increased), not interest rates
Discussion
I get that liquidity can flow into a market and bid up prices, I just thought that when interest rates are high you wouldn't be in a risk on trade, and it would reflect in equities, but damn ATH at 5,5% is nuts
You're right that higher interest rates generally reduce liquidity, but there's other liquidity sources counter-acting that. For example nearly 2 trillion dollars have drained from the reverse repo since start of 2023 to fund USG deficit spending.
