Author: Baishi Youjie (personal preference) Friends who repost please indicate the source, thank you!
There are not many companies whose odds remain basically unchanged after they are issued, only a few. Now I list them from the companies I track for everyone to see and discuss with me via email.
William Hill: The leader in the betting industry, as soon as the odds are set, there is basically no change, generally only 1%-2% fluctuation in the field. Accurate odds setting. It's the top one in the betting industry.
SSP: This company should be familiar to everyone, it accepts parlay bets, after the odds are set, they don't change, if they do change, they will generally move towards the direction of the change. Its characteristics: often sets a certain value in the odds to the highest among 99 companies. Even higher than the Kelly Index is also normal. However, this company had some small changes in the odds during a period in the 2006-2007 season.