But most of the FX volume is OTC. The actual data is DTCC Swap Data Repository, the screenshot that you shared earlier is bits from the DTCC options data.
€13.48 billion EUR/USD options expiry at 1.1500 creates a pin risk zone today. Expect price to gravitate and range near 1.1500 into NY cut as dealers hedge. Volatility likely expands after expiry when hedge flows drop off. Watch for breakout 3-4pm GMT today