For sure, it has been an amazing ride for those using the stock market as a casino.
That's kinda the point; something as important as this shouldn't be a casino.
My long-term opinion is that the stock market is more like a milking-machine.
The stock market should reflect reality, and sometimes reality is volatile.
What affect on day to day operations of Intel does speculation on already sold stocks have?
My interpretation is that the stock market is just reflecting the rising value of power/influence assets relative to currency, which is to say, the falling value of currency relative to power/influence (which stocks are). Stocks aren't going up because the companies are that much better, they're going up because the macroeconomy is that much more fucked.