It's been 3 weeks now and every single one of my clients has had a major upswing, every single one, all in different markets.

Algaroo has reported no amazing volatility, of course we had the May core update, but up across every client, i've never had that before as a single surge.

Since they introduced the so-called rank-brain i've recorded massive swings, in comparison to pre-rank-brain ranking. Rank-brain seems aggressive in it's recalculations, it seems to be trying new things all the time, which isn't necessarily good for a fixed space like search.

Anyone else anomalously benefiting recently, sudden upswings with no extra work, across the board ?

No, but I have seen a massive drop in the cost per click on adwords and bing.