Today many people stating that the bitcoin is rapidly falling because of the outbreak coronavirus, it is because they are limiting the transactions for over the world and stop trading for a while
Price of Bitcoin decreased, because people need money so they exchanged their Bitcoins into fiat to buy whatever they need to buy. Some sold because they expected price of Bitcoin to decrease and bought or will buy back latter. There is a lot uncertainty right now.
Obviously, the thing people are unable to go out of homes due to COVID-19 as the most of the government's has lockdowns, so they are desperately looking out for some stuff where they can buy with the help of home deliveries. The market is very volatile right now, it's better to hold the asset and have patience until it turns bullish...
We better be flexible with the market. Do not try to hold in the current situation because prices are likely to rise during this time. If you have experience in trading then you do not need to hold any of these altcoins, take advantage of opportunities and make profits every day with the wave of the market.