If there is no information on a particular company of interest, then its stock will GENERALLY move in the same direction of most stocks on a given day. An interesting phenomenon. What drives stocks on an aggregate scale has changed over the years. In the absence of major economic or political news in the 70s, stocks rose and fell on the size of the money supply (mostly m1, but also m2 and m3). Nowadays no one gives that much consideration and they care more about rate cuts on the macro scale. Cutting interest rates could go either way though since the Fed can only cut short term rates, and if the market doesn't like it long term rates will go up.