My question is why is they no extra profit for early holders when the price falls and rises agian?
Really, what extra profit you want? Just look at the charts!
Bitcoin was 0.6$ some years ago, then +1000$ some other years ago, 200$, 20000$, 3000$, 50000$.... yes, it goes up and down, but if you look at the big picture the long time holders are in a profit and don't need more.
But l asked my question mainly for the short runners or what just happened. The 50k buyer will not profit like the 39k buyer that's my question

So you were asking for "short runners" by asking about "early holders". Makes sense.
In 5 years it won't matter if you bought at 39k or 50k, at least the last 10 years history tells that.
If you think that HOLDing means a couple of days, you better learn patience (for years) or find something else to invest in. (Just a piece of advice: 99.99% of crypto hyip are scam).
This. I can only laugh as the forum fills up with short term gamblers who think the weekly fluctuations of the coin mean anything over the long term like 5, 10, 20 years.
Let them panic. And I say that as someone who is not a blind "bitcoin fanboy" - I do hope certain aspects of it become history, like big Chinese miners largely using coal energy to mine new coins.