Carry trade adjustments are more on Wednesdays?

Hello I just noticed something I can't easily explain. It seems that my carry trade adjustments are being marked up by 3X every Wednesday. Is this normal or is there any explainable reason for this?

I emailed my broker and asked them about it, but they are closed right now. I would like to get a response from you all here as well.

Answered here. It's an old answer (2006) but I believe it still applies.
Or if you prefer a br0ker's answer, including the calculation details, try this.

I found these using Google.

This is interesting, been trying to get my head around carry trades and understand how it impacts the FX market.