George Town, Cayman Islands, 19th May 2026, ChainwireBy ChainwireMay 19, 20263 min readCreate an account to save your articles.Add on GoogleAdd Decrypt as your preferred source to see more of our stories on Google.George Town, Cayman Islands, May 19th, 2026, ChainwireThe crypto prop firm has granted over $50M in prop trading capital to 3,500+ traders across 150+ countries. SizeProp, the crypto-native proprietary trading firm, today announced the close of its pre-seed funding round led by Igloo Inc., the company behind Pudgy Penguins. The round was structured as a SAFE.Windra Thio, Founder of SizeProp: "Igloo's backing isn't just capital, it's validation that prop trading is a real, fast-moving category. We don't see other firms as competitors; every firm growing this space gives more talented traders a real shot. The bigger it gets, the better for everyone."Since launching in late 2025, SizeProp has:
Fully integrated with Hyperliquid and Trade.xyz offering commodities, stocks, forex 24/7 perpetual futures.
Onboarded thousands of new users into prop trading, generating over $3B of trading volume
Granted over $50M in prop trading capital to traders across 150+ countries
Processed same-day USDT payouts, with a public record of never refusing a payout
