Update
Kraken's Stablecoin Fee Gap Explains $100 or $20 Trading Fees
Converting $10,000 in USDC to euros at Kraken can incur a $100 or $20 trading fee, depending on whether the trade uses instant pricing or the eligible order book. The $80 difference comes from standard Instant Buy/Sell pricing versus the eligible entry-tier USDC/EUR order book, with additional costs including bank payouts and account access fees.