Odds changing, and dropping, happens all the time in sports betting industry. For big matches a last minute information and/or a big bet can result in odds dropping to eliminate bookmakers risk. Usually when one outcome price drops, the opposite outcomes price rises. On smaller markets a relative small bet can drive prices one way or another.
There are several websites, services and tools that are monitoring these odds movements. What I don't understand is if these price movements indicate anything in relation with the outcome of the event. Does an odd from 1.80 dropping to 1.60 indicates a higher probability than what the 1.60 odd suggest? Can we derive any useful information, trends, or patterns by studying those dropping odds. Or is it a waste of effort and time with the real probability of the event being resembled in the final odd, therefore the movement being insignificant?