April's top altcoin gainers: SKY up 549%, SIREN up 125%, ZEC up 40%

A handful of altcoins posted outsized gains through April, with SKY leading the pack at +549.3% to $0.385. SIREN followed at +125.3% ($0.682), while LUNC nearly doubled with a +104.6% move to $0.00007479.

Mid-tier gainers included EDGE (+96.2%), PENGU (+52.7%), and JST (+42.5%), with DEXE, ZEC, AERO, and M all posting gains in the 32–40% range. The breadth across unrelated sectors — from privacy coins like ZEC to community tokens — suggests the April rally was broad-based rather than driven by a single narrative.

As always with monthly snapshots, past performance reflects already-moved prices; the more useful signal is which of these projects have fundamentals to sustain momentum into May.