Investors are pushing away from the table Wednesday, sending some of the biggest names in gambling tumbling. 

Shares of Caesars Entertainment (CZR) - Get Report were halted temporarily Wednesday afternoon as investors flee from casino stocks following disappointing revenue growth numbers out of the Macau gaming region in China. 

Caesars was down more than 20% at one point, but have since pared losses and is down 15%. 

Macau's Gaming Inspection Coordination Bureau reported that gross revenue from gambling rose 10.3% year over year in July to 25.33 billion patacas, or about $3.13 billion. However, analysts polled by Bloomberg were expecting revenue growth north of 11% for the month of July. 

Meanwhile, Stifel analyst Steven Wiecynzski said Macau's July results were "right down the middle" of consensus expectations. But he also said he only expected to see shares modestly lower following the results. 

MGM Resorts International (MGM) - Get Report , another Vegas casino company with exposure in Macau, is down 6.7% Wednesday afternoon, while Las Vegas Sands Corp. (LVS) - Get Report is down 3.4%, and Wynn  (CZR) - Get Report  is down 4%.