The next time it happens while I have HyperCam running, I'll be sure to record it and post it to my YouTube account so you can see it. A picture is worth a thousand words but a video is worth at least a million.
It is not like I am making this stuff up. Anyone who trades for a living needs to pay attention to not only price action but spread action. My system tracks spread action and has an algorithm for determining not only the direction of price, but the probability for widening spreads as well.
I would like to be able to call these "Widening Events" anomalistic. However, that would not be a true statement when it comes to FXCM. On CitiFx's MT4 platform, my system's historical spread action database does not show anywhere near the same degree of widening that I continually see on FXCM's TS-II and MT4 platforms.
I'm slowly migrating my capital to the Currenex platform:
Currenex FIX Protocol 4.x API. There is lots of API work still to do, so I'm not yet fully engaged on Currenex. I still use an FXCM account for various kinds of testing purposes and mostly because the majority of my development has been done using the MT4 platform (MQL) and Excel. I run my capital on two different platforms right now and intend to settle on Currenex as the single point of entry.
On the FXCM platforms all JPY
majors seem to have one of the highest spread deviation norms across all pairs that my system tracks and relative to most other retail forex brokers that I have observed. The FXCM spreads are certainly nowhere near as tight as those found on platforms like Currenex.
Like I said, when I have Hcam rolling during another testing phase and my system encounters the widening, I'll post a link to the YouTube video right here so you can see it for yourself. Or, alternatively - you can roll video of your own on all the major FXCM JPY pairs and capture the event yourself. Either way, these events will show themselves and I estimate it wont be too long before it happens again, given their history.