This post is thanks to @AlexCobb and his observation yesterday. If you guys dont know about AlexCobb, he is a youtuber who is an avid supporter of Ripple and XRP.
This was observed by him on xrpcharts website.xrpcharts.ripple.com. He observed that they have done away with showing the trading volume in JPY. So the backdrop to all this being that SBI has opened registration to millions of its customers. So they might be conducting tests.
Chances are they might be trying to hide this volume to curb the volatility that's likely to ensue if some huge volume suddenly starts showing up.
Now lets wait and watch whether his observation turns out to be true.