The document provides the following information in 3 sentences:
1) Share prices of major Malaysian property developers like SP Setia and Mah Sing have fallen significantly in the past week due to a report that the government may change how housing loans are calculated from gross to net pay to curb speculation.
2) While the analyst expected the news to impact share prices, they are surprised by the speed and severity of the selloff, which has also spread to construction companies with property exposure despite details of any policy changes still being unclear.
3) The analyst maintains an overweight rating on the property sector and outperform recommendations on all developers, seeing the share price falls as a buying opportunity, and believing the property market fundamentals