The two companies are at different stages of maturity. MDA is an established operator and defence company. They have certainly had some hiccups with contracts but growth is still attractive and they should benefit from some government programs if they come to fruition. Meanwhile, it offers an attractive valuation at these levels.
TSAT is in more of a transition from the declining GEO business to their LEO business which will take time and capital, but it does have a growing backlog for its LEO segment. While the case can be made here for a tax-loss strategy, the switch would be to a different risk profile and with space exposure already through MDA, we don't think a change 'needs' to be made here, but for an investor seeking potentially stronger growth, but with a slightly more 'risky business profile', we would be OK with switching some over.