All altcoins have significantly increased their value over last couple of days. Any answers why such thing happened? usually just one of two coins were pumped (out of the most valuable ones) and now almost everything in top 10 is being pumped
I think the reason why all the top 10 altcoins went up is because of the recent developments in Japan, especially for Ripple. I think these changes are optimal for cryptos to grow at the pace they are growing at today.
Not all the altcoins in the top 10 are real in terms of their pumps because some and most of the coins are fake and just pumped because of the hype, if you really want a legit coin for the future then you will do some research because some of the legit coins are not easy to pump and they wait for the real investors and future lookers to find them out and then it will have a real pump from real investors.