[pyoung]

> if the NFP comes out about X we sell, if it comes out below X we buy

The stock market works on supply and demand. For every seller, there needs to be a buyer. Let's assume that TSLA stock changes hands at a rate of 10k shares per day on average. The NFP report could cause a number of potential buyers to decide to hold off on buying. Assuming the sell interest is constant, this would likely result in a price drop. So no one has to actively buy/sell on the data in the NFP report (although some people might do that). If the NFP report causes buyers to stay home, prices will go down, and if it causes sellers to sit on their stock, prices can go up.

And of course this greatly oversimplifies reality. In any given day there are probably a number of different factors influencing sellers and buyers. Some people might be selling/buying to rebalance a portfolio. Some might be buying for their 401k. Some might be selling to cash out employee stock options. Some might be daytrading on the NFP report. And the movement in price is largely just a result of any aggregate imbalance between supply and demand. For me personally, I have stopped buying stock because I think the market is too overvalued right now. I know a few others how have stopped as well. As more people do this, the 'buy side' gets thinner increasing the odds of a drop.