Tech View: Nifty fails to close above 50-DMA. What investors should do on Friday

Now, the index has to hold above 17,300 for an up move towards 17,442 and 17,500 zones, whereas support can be seen at 17,167 and 17,071 zones. Options data suggests a broader trading range in between 16,800 to 17,700 zones, while an immediate trading range is between 17,000 to 17,500.