The volume was huge , still is on polo, was over 10kbtc at one point.

has there been no recent news, someone told me something about japan?

Something I posted awhile back:

Why should I buy XEM?
note: I have read and done my research, I just want to here it from one of the investors.

here's some recent developments:

The public/private blockchain model with NEM/Mijin:
http://mijin.io/en/633.html

Dragonfly Partners with Microfinance Company in Malaysia
https://news.bitcoin.com/malaysian-remittance-dragonfly-fintech/

Japanese BANK Testing with NEM Tech:
http://themerkle.com/sbi-sumishin-net-bank-trials-blockchains-in-financial-accounting-systems/

Infoteria partners with Dragonfly:
http://www.prnewswire.com/news-releases/infoteria-to-partner-with-dragonfly-fintech-300252763.html

This along with devs/team that delivers time and time again. You will find no hype here. Just results!

This is not to mention Supernodes, Namespaces/Mosaics, as well as the tech itself, lots of stuff in the pipeline, & a low market cap of ~$40 million, lots more room to grow!

Also, XEM was added to another exchange https://zaif.jp/trade_xem_jpy with a direct fiat link XEM/JPY.

But do your own due diligence