CQG costs can vary based on the front end platform you are using. Below is a non comprehensive list of monthly CQG connection fees per platform:
CQG Desktop/Mobile: $25 per month, $0.25 per contract on top of exchange fees, NFA fees, and commissions
CQG QTrader: $75 per month, $0.25 per contract on top of exchange fees, NFA fees, and commissions
Sierra Chart: $10 per month, $0.10 per contract on top of exchange fees, NFA fees, and commissions
Bookmap: $10 per month, $0.10 per contract on top of exchange fees, NFA fees, and commissions
Jigsaw Daytradr: $10 per month, $0.10 per contract on top of exchange fees, NFA fees, and commissions
MultiCharts: $10 per month, $0.10 per contract on top of exchange fees, NFA fees, and commissions
Tradingview: $10 per month, $0.10 per contract on top of exchange fees, NFA fees, and commissions