Rollover is the interest paid or earned for holding a position overnight, any client holding an open position at the end of the trading day (5pm EST) will be credited or debited rollover.
Most liquidity providers are closed on Saturdays and Sundays, so there is no rollover on these days, but most liquidity providers still apply interest for those two days. To account for that, the Forex market books three days of rollover on Wednesdays, which makes a typical Wednesday rollover three times the amount on Tuesday. Additionally, there is no rollover on holidays, but an extra days’ worth of rollover two business days before the holiday.
The below tables indicate how many days of rollover will be applied to open positions at 5pm EST.
Please note this table is indicative only and today’s daily rollover can be seen in under symbols contract specification in MT4 Market watch window.