Glowing upward arrows and rising candlestick chart symbolizing CoStar’s share buyback boost and rebound. Key Points Automatic Data Processing, CoStar Group, and Paychex all expanded buyback capacity after steep share-price declines. Each authorization equals a meaningful slice of market cap, suggesting management confidence at current levels. CoStar stands out for pairing a large repurchase plan with updated forward commentary as it ramps investment. Interested in CoStar Group, Inc.? Here are five sto ...