Another possibility is, Solarcoin isn't linked to Bitcoin anymore, so its playing by its own rules. Vipgelsi is probably right on also, if someone is selling off, that can cause a dip. Not worried in the least however. There's a bright future for Solarcoin. Anyone who takes a moment to look into it will see the potential. I will admit it's a little rough around the edges, but it's a rough diamond, not a lump of coal.
About SLR "not linked" to BTC anymore - I agree here - if we look at the price in SLR / BTC ratio, since ~may 2016 we are going "down" ~ 400% and I'm not happy about it, but if we look at that price in USD / SLR - we are going up and the growth may be slow but it is steady so I hope it will continue that way and it is for the best. Anyway every time I see some big wallet dump his stash at Bittrex I get mad, but overall we need distribution so in the long run I guess it is good if we get rid of the big whales - and speaking about big wallets I saw this one
https://chainz.cryptoid.info/slr/address.dws?258872.htm and I was confused -
when he popped up there

I didn't saw him last time I checked that rich list, but that amount of coin in the hands of one person is disturbing, especially to the new comers/investors. Anyway I think overall we will see a major increase in the price later this year with all of the stuff that is going on behind the curtains of the project - once we polish that rough diamond it will shine for sure

I agree with your thoughts. Remember that any coin that have total supply sizable must take time distribution from one person to another. Besides the delivery period is the time to promote and upgrade the technology and the roadmap of the project.