KARACHI: The Pakis­tan Stock Exchange (PSX) witnessed cautious trading on Tuesday, as investors remained alert ahead of the bidding process for the national flag carrier, Pakistan International Airlines (PIA). The market extended its overnight volatility, closing in the red after sharp intraday fluctuations.

According to Topline Securities Ltd, the session was choppy and range-bound, with rollover-week adjustments contributing to a cautious market sentiment. The benchmark KSE-100 index fluctuated between a high of 663 points and a low of 235 points,........

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