The Pakistan Stock Exchange (PSX) ended Tuesday's trading session in negative territory, with the benchmark KSE-100 Index losing more than 1,100 points as selling pressure emerged across heavyweight banking, oil & gas exploration, cement, investment, and fertilizer stocks.

Investor sentiment turned cautious after international oil prices recovered part of the previous session's losses, renewing concerns over potential disruptions to Middle East energy supplies. Although hopes of a diplomatic breakthrough between the United States and Iran continued to support global sentiment, lingering geopolitical uncertainty prompted investors to adopt a more defensive stance.

The benchmark KSE-100 Index settled at 177,083.22, down 1,116.80 points, or 0.63%, from the previous close. The index traded within a range of 1,725.73 points, reaching an intraday high of 178,768.83 (+568.81 points) before slipping to an intraday low of 177,043.10 (-1,156.92 points).

Trading activity remained active, with 263.77 million shares exchanged among KSE-100 constituents. Market breadth turned decisively negative, with 29 companies advancing while 71 stocks closed lower.

Among the worst-performing stocks, Mehmood Textile Mills Limited (MEHT) declined 10.00%, followed by TPL REIT Fund I (TPLRF1) (-3.23%), Arif Habib Corporation Limited (AHCL) (-3.08%), Pakistan Stock Exchange Limited (PSX) (-2.47%), and Nishat Mills Limited (NML) (-2.41%).

On the positive side, Kot Addu Power Company Limited (KAPCO) gained 5.09%, while Power Cement Limited (POWER) advanced 4.47%. Other notable gainers included Sui Southern Gas Company Limited (SSGC) (+3.12%), Gadoon Textile Mills Limited (GADT) (+2.08%), and Dolmen City REIT (DCR) (+1.83%).

In terms of index-point contribution, United Bank Limited (UBL) exerted the largest negative impact on the benchmark, dragging the index down by 153.66 points. Other major drags included Engro Holdings Limited (ENGROH) (-140.21 points), Oil & Gas Development Company Limited (OGDC) (-113.10 points), Lucky Cement Limited (LUCK) (-87.88 points), and Pakistan Petroleum Limited (PPL) (-84.85 points).

Meanwhile, Meezan Bank Limited (MEBL) provided the biggest positive contribution by adding 72.10 points to the index. Additional support came from Pakistan State Oil Company Limited (PSO) (+50.57 points), KAPCO (+22.67 points), POWER (+14.80 points), and Millat Tractors Limited (MTL) (+13.84 points).

Sector-wise, Commercial Banks were the biggest drag on the benchmark, shaving 269.80 points off the index. Other weak-performing sectors included Oil & Gas Exploration Companies (-212.22 points), Cement (-176.96 points), Investment Banks, Investment Companies & Securities Companies (-162.39 points), and Fertilizer (-126.93 points).

On the other hand, gains in Oil & Gas Marketing Companies added 77.61 points to the benchmark. Support also came from Leather & Tanneries (+11.45 points), Food & Personal Care Products (+9.50 points), Glass & Ceramics (+5.13 points), and Textile Spinning (+1.86 points).

In the broader market, the PSX All-Share Index closed at 106,985.24, down 599.74 points, or 0.56%.

Overall market activity moderated, with 711.27 million shares traded compared to 785.36 million shares in the previous session. The total traded value also declined by Rs7.27 billion to Rs25.87 billion, reflecting relatively subdued investor participation.

A total of 351,200 trades were executed across 494 listed companies, with 160 stocks closing higher, 295 declining, and 39 remaining unchanged, highlighting the broad-based weakness across the market.

Among the most actively traded stocks, Pakistan International Bulk Terminal Limited (PIBTL) led the volume chart with 89.71 million shares, followed by TSBL (86.05 million shares), TPL Properties Limited (TPLP) (67.24 million shares), Sui Southern Gas Company Limited (SSGC) (34.62 million shares), and Cnergyico PK Limited (CNERGY) (26.07 million shares).

Despite Tuesday's decline, the KSE-100 Index remains up 3,029 points (1.74%) on a calendar-year basis. However, during the current fiscal year, the benchmark has lost 3,218 points (1.79%), reflecting continued market volatility amid shifting global and domestic economic developments.