SizeProp Raises Pre-Seed Round Led by Igloo Inc. to Build the Infrastructure for Crypto Prop Trading

By Chainwire

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 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 
• Built a proprietary crypto trading terminal from scratch, not a white label of MT4/MT5, sourcing tier-one exchange orderbooks
• Launched the first incentivized rewards program in crypto prop trading

A New Wave in Crypto Trading

Crypto prop trading is emerging as one of the fastest-growing categories in the industry, driven by the explosion of perpetual swap volumes, a generation of skilled traders who don't want to deposit their own capital, and a category historically dominated by whitelabeled forex tooling that was never built for crypto.

What's next                                                                         

SizeProp is focused on a few things over the next 12 months:                   

• Onboarding non-crypto-native traders. Making the platform approachable for traders coming from forex, equities, and traditional prop firms, not just crypto natives 
• Reaching developing regions. Doubling down on markets where prop trading is changing lives the most, including India, Nigeria, Turkey, Brazil, and Southeast Asia.
• Building closer ties with the broader Igloo network.                                         
• Growing the team across marketing, operations, and risk management                   

About SizeProp

SizeProp is a crypto-native proprietary trading firm that funds traders to trade perpetuals without depositing their own capital. Traders pay a one-time fee for an evaluation challenge starting at $35; those who pass receive funded accounts up to $100K, keep up to 95% of the profits, and withdraw same-day in USDT. SizeProp has granted over $50M in prop capital to 3,500+ traders in 150+ countries, and has never refused a payout. Users can learn more at https://www.sizeprop.com

About Igloo, Inc. 

Igloo, Inc. is a collection of companies, the largest of which is Pudgy Penguins. Founded in 2024, the company is headquartered in Miami, Florida. Millions of people use its wide range of popular crypto-native products and platforms each day, from Pudgy Penguins, Pudgy World, OverpassIP, and more. To learn more about Igloo, users can visit igloo.inc.

Contact

Windra Thio
support@sizeprop.com

Recommended News