Circle, the second top stablecoin USDC issuer, has filed for an IPO by submitting an S-1 form with the US SEC.Circle reported a significant growth in revenue, with $1.68 billion in 2024, leading to the decision to go public.The popularity of stablecoins is increasing due to support from the US government and recognition of their potential.Circle's IPO filing comes amidst a favorable environment for stablecoin and cryptocurrency companies to go public.