BTC drops and altcoins follow. SOL nearly fell below $100, but as soon as BTC pumped, altcoins recovered as well. I think this is why most exchanges have more BTC in their Proof of Reserve, as it controls the market and is less volatile in dropping than other coins.
I've been wondering if any exchange's Proof of Reserve has increased this year due to Bitcoin fluctuations. If there are any, I'd love to see them in this thread. This information might be useful for people looking for better CEXs, especially during this period when some CEXs are exiting particular regions.