Leverage concentration in XRP (XRP) and Solana (SOL) is widening among top crypto futures traders, while margin preferences are showing early signs of shifting toward 'coin-margined' positioning—an important micro-signal for how risk appetite is being expressed across derivatives markets. Data tracked by Coinglass, which classifies 'top traders' as accounts in the top 20% by margin balance, indicates that the overall share of 'USD-margined' exposure has edged down slightly week over week.