Share your insights or perspective on the financial matter presented in the input.

Are traders 100% responsible for a stock's price changes?
Yes, the value of a stock is completely, 100% determined by what people are willing to pay for it in conjunction with what people who have it are willing to sell it for. If something really bad happened to a company, like their only factory burned to the ground, and the traders didn't care, then I guess, in that scenario, the value of the stock would not change. But you can spin all sorts of hypotheticals of that sort. If dogs could talk, would German Shepherds speak German? Etc. Any answer is pretty meaningless because the premise is wildly unlikely. As CQM notes, "traders" in this context means everyone who buys or sells stock. If you buy stock, that includes you. They're not some mystical cabal somewhere. If you see a stock listed at, whatever, $50, and you are not willing to pay more than $40 for it, then you refuse to buy, and so you tend to force the price down. If you're not a billionaire, then your impact on the market is tiny, but the market is made up of millions of people each with tiny influence. Note that all this is true not just of the stock market, but of every product on the market. A product is worth whatever the owner is willing to sell it for and people are willing to pay. This is what determines the price of everything from houses to toasters. It's a little theory I've invented that I like to call, "the law of supply and demand". :-)