The approval of spot Ether exchange-traded funds (ETFs) on May 23 by the United States Securities and Exchange Commission (SEC) failed to extend the rally in Ether, which rallied roughly 25% last week. Meanwhile, Bitcoin (BTC) rallied near ,000 this week, but the bulls could not sustain the higher levels. The positive movement in Bitcoin and Ether this week has triggered buying in select altcoins that are showing promise in the near term.