One thing we also need to note is that contextually speculation can be said to be news, rumors which varies from one person to another and this said news or rumors can as well influence the forces of demands and supply which apparently affects the price of Bitcoin either to go up or come down, demands and supply really has a lot to do with those fundamentals of speculation even though they are merely assumptions which may or may not happened, but are still effective either negatively or positively to demands and supply.
Yes part of what drives demand or even supply is news because news actually are part of fundamental analysis that can drive price either upward or downward, take for example a positive news like adoption rate in crease about bitcoin it will help definitely create demand and the more the demand the more the market pumps, such as the news which looks bearish like the rates news, inflationary pressures and more of economical downturns this news actually makes the market dumps a bit because it triggers some investors to definitely sell or close their positions especially the short term traders. So yes it speculative news actually acts a catalyst to the market