Update for the NAV.
15 Sep 2017 10:00:00
$1,080,004.88
+$583,648.24
+$69,463.99
+$169,468.83
=$1,902,585.94
$2,024,702.34
-$1,902,585.94
=$122,116.40
The last 22 hours alone Nu lost $122k
Since 7th Sep half a million USD.
NAV declined by $500,000 over the course of 8 days.
You don’t have enough reserve to buy back all circulating NBT. Pray that BTC doesn’t start to rise very soon and very fast, otherwise you will experience a rough ride 
But hey, you can as well close your eyes, pretend all is good and continue with the NSR buybacks.
I’m sure there are several hundred million NSR in circulation that want to be bought before Nu blows up!