George Town, Cayman Islands, May 19th, 2026, Chainwire.
The 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…






