Somebody posted when they first started trading that xbt provider had 4000 coins for initial backing. Well today they are at 880k notes issues which is 4400 bitcoins. Sounds like they had to move those coins over to xbt provider to keep backing notes sold.
day 1 history : 949 BTC (189783 shares) traded at 232.84$
day 2 history : 546 BTC (109376 shares) traded at 232.6$
day 3 history : 455 BTC (90988 shares) traded at 232.2$
day 4 history : 681 BTC (136233 shares) traded at 235.95$
day 5 history : 643 BTC (128618 shares) traded at 237.21$
day 6 history : 453 BTC (90759 shares) traded at 237.21$
day 7 history : 756 BTC (151238 shares) traded at 236.8$
day 8 history : 431 BTC (86275 shares) traded at 236.1$
day 9 history : 360 BTC (72006 shares) traded at 237.7$
day 10 history : 533 BTC (106617 shares) traded at 234.9$
day 11 history : 595 BTC (119031) traded at 226.83$
day 12 history : 224 BTC (44950) traded at 224.46$
So they started 4000, volume is declining harsh, and after 2 weeks they have a meagre rise of 400 BTC which they needed for backing, and those facts lead you to the conclusion that those 9000
BTC have been transfered to XBT?

Makes total sense!