Yes, if you hold MRCB it is advisable for you to sell now. Why? (Please read and watch the chart)  

1. I plot a trend line based on resistance range of 740, 810 and 870. This trend line is based on the assumption that MRCB is trading at a bearish position.  

2. Next, I plot a trend line based on support range of 570, 780 and 790. This trend line is based on the assumption that MRCB is trading at a bullish position.  

3. We see a clear break of plotted bullish support has happened today (orange). MRCB has gone to 765 before bumping to 780. Even if it manages to hold 780 until the end of the day, it's a clear selling signal and we need to wait what will happen next. This is however, a different story if MRCB can skyrocket within its bullish range of any price higher than 800 (plotted bullish trend support). Which is not possible unless there's institution pumping it or there is a very good news coming out this afternoon.  

4. Using only chart and volume might not be enough. Hence, I used RSI oscilator to justify my selling signal today.  

5. I plotted a resistance on RSI based on the range of 65, 67 and 69. Its lower trend line is plotted based on RSI perpendicular line of 90 degree of early candle (the large green on 12th July) which then meet its 'determiner' point of 57, where it hits three times on 17th July, 6th August and 21st August. Any momentum lower than this should be a sell signal.  

6. Move your cursor on the 21th August RSI, and you will get a losing momentum on that given date. Therefore an estimated sell signal has triggered on 810.  

7. However, I made a stop loss of 780 assuming that the market need to 'breath'. It is however, failed to hold 780 today, and meet its lowest negative sentiment for a period of two weeks, with a testing price point of 765.  

8. I've made a stop loss today on 780 which is then supported by:  

a) The negative sentiments on domestic construction sector made by Malaysian Prime Minister.  
b) The negative sentiments on international politics, with trade tension has no signs of easing.  

9. Assuming that quarter report is positive next week, the price should hovering at 790 - 850. Bullish signal is triggered when research bank releases a price target for MRCB regaining confidence on the MRCB equity towards its RM 1 and above.  

10. But if it turns out negative, then cross your finger folks. The road is long ahead.  

11. Despite this recent update, I am still predicting that MRCB quarter report will be positive based on the increased bookings in various property projects of MRCB on Kuala Lumpur and Melbourne, Australia. But, until the time came, it is good idea to stick to my planned trading strategy.  

12. See you next week pals. After the QR.