for those who never heard of daily close rebalancing… the explanation is simple if you ever did algo trading. a lot of systematic strategies use the closing price as a primary data source. the higher the timeframe, the bigger the liquidity spike that gets compressed into a tiny window. that’s why some tickers show vol spikes at daily, weekly, and monthly closes. hourly has spikes too, but the effect is way weaker because the flows are scattered. it used to happen even more often before, but the core idea hasn’t changed at all. markets are heavily automated, and if you’re not aware of it, you’re just fresh meat in the algo wars.