Dow ends with largest drop ever

[Goalpost]

The stock market is based on valuation/pe. Companies are still reporting good earnings. But as to why it is happening now...the market has gotten ahead of itself. I also think interest rates will uptick, it's inevitable, and this will hurt consumer purchasing power. People will still buy, on dips, quality companies. If earnings were declining we'd be in big trouble, that's not happening though.