Part 1 Advanced The Market Maker’s Exchange Checklist (Liquidity, Latency, and Risk Controls) Market makers and HFT desks: evaluate exchanges on execution quality, liquidity, latency, fees, margin, and security — with a WhiteBIT walkthrough. Open guide Spending from a Solana wallet is not as simple as it sounds. SOL rarely reaches the merchant as SOL. Most card programs convert the balance to fiat before the payment clears, which means the card's funding model, conversion path, and fee structure matter as much as any reward rate. Picking the wrong card for the wrong task, spending SOL directly when a stablecoin card would have been cheaper, or chasing rewards that only work in one country, creates friction that is easy to avoid with the right information upfront.
This guide covers the five best Solana cards available in 2026, what each one actually does, where the costs show up, and how to match the right card to the way you actually spend.




















































