Altcoin Marketcap Finding Resisitance at 500 Billion?

Looking at the total 3 it has risen above the 500 billion marketcap briefly and looks like it could be finding resistance at this level. In my opinion this is a great place to take profits and a possible short opportunity. As i write this BTC has just hit a High 0f 47,000 and is showing signs of losing strength. Similarly ETH has risen to a new high above 2300 and may fail to hold this level. Lastly the hype around the BTC ETF has driven prices and volatility to these levels and I want to be cautious in case this is a Buy the rumor Sell the news type of event.