yep! it'll be calculated as though an equal amount was invested in each. In other words, average ROI. Meaning that if LTC had 20% ROI, ANS had 10% ROI, and GNO had 0% ROI ... your total ROI would be 10%.
(1.2 + 1.1 + 1.0)/3 = (3.3)/3 = 1.1, or 10% ROI
K cool, that's what I thought, Game on!