I did not exactly measure the hard numbers, since concurrent other minerals and isotopes trades and 6 Market Discussion forum concurrent investments used most of my liquidity and forced me to buy some bits here and some bits there.
The trade started with prices at 4.75-4.76 ISK per unit, had a small take profit at BRN 6, then at 6.08 and at about 6.20 to 6.25.
This led to gains of:
1) 26% in the first 2 weeks.
2) 27.7% for the remaining part in about a month.
3) 30.25% for the remaining part in about a month and half.