I would not say that a bull run has occurred when the price increase has not lasted for a long time, if prices rise gradually in a few weeks or a few months maybe I would think that a bull run might have started, but now prices have risen just a few day, it's not enough to say its bullish
But, I do see bull market is back as most altcoins at the top are actually gaining some impressive value too along with Bitcoin, it is only the lower coins that I am yet to see, and these coins below are what I have more of my investment because they are cheap to accumulate, I just do hope they will experience some spike in price too so that the equation can be balance.
I believe they will gain value in the long run, probably when bitcoin has reached a high value and it is trying to consolidate, because I learnt from so many write-up on this forum that most altcoins at the bottom only increase when Bitcoin is consolidating.