Bitcoin holds above $81,700 as altcoins surge — $B leads May with +226%!

With Bitcoin trading above $81,700, altcoins are posting some of the strongest monthly gains of the year. BUILDon ($B) tops the leaderboard at +225.9%, followed by <a class="ticker-mention" href="/en-US/token/skyai">SKYAI</a> at +127.6% and <a class="ticker-mention" href="/en-US/token/zec">ZEC</a> at +65.6% — a spread that suggests broad risk appetite rather than a single narrative driving flows.

Mid-tier names are also participating: <a class="ticker-mention" href="/en-US/token/ton">TON</a> is up 58.8%, DASH 45.7%, and VVV 29.3%, while ONDO and VIRTUAL round out the top ten with gains above 20%. The breadth of the move — spanning privacy coins, DeFi, and infrastructure tokens — points to a market rotating out of Bitcoin dominance and back into alts.

If <a class="ticker-mention" href="/en-US/token/btc">BTC</a> can hold the $81,700 level, the setup historically favours continued altcoin outperformance in the near term.