Flooring Guide by Cinvex — The Bisnis-27 Index faced a significant downturn on Friday (May 8, 2026), closing in the red with a 2.02% decline to reach 471.17. The index, which tracks 27 major stocks in collaboration with Bisnis Indonesia, fluctuated between 471.17 and 483.56 throughout the trading session.
Market sentiment remained bearish as the session concluded with only five constituents recording gains, while 22 stocks finished in negative territory. The overall slump was primarily driven by sharp declines in key heavyweights, including PT Vale Indonesia Tbk. (INCO), PT Merdeka Battery Materials Tbk. (MBMA), and PT Bumi Resources Minerals Tbk. (BRMS).
Stock Performance Highlights
Among the notable decliners, INCO led the downward trend, shedding 13.89% to close at Rp5,425 per share. Similarly, MBMA saw its value drop by 11.45% to Rp580, while BRMS retreated by 10.18% to finish at Rp750 per share.
The bearish sentiment extended across several other sectors. DEWA slipped 7.96% to Rp474, UNTR fell 7.28% to Rp27,400, and ANTM declined 6.44% to close at Rp3,630 per share.
Despite the broader market pressure, a few stocks managed to buck the trend. PT Mitra Adiperkasa Tbk. (MAPI) stood out with a strong gain of 12.36%, closing at Rp1,455. Other positive movers included PT Kalbe Farma Tbk. (KLBF), which rose 2.22% to Rp920, and PT Mitra Keluarga Karyasehat Tbk. (MIKA), which climbed 1.83% to finish at Rp1,945 per share.
Broader Market Context
The weakness in the Bisnis-27 Index mirrored the performance of the Jakarta Composite Index (IHSG), which also closed in the red. The IHSG fell 2.86%, slipping below the 7,000 threshold to end the trading day at 6,969.39.
Trading activity was substantial, with 56.3 billion shares exchanged at a total value of Rp36.08 trillion. Market breadth was clearly skewed toward the downside, as 575 stocks ended lower compared to 133 advancers and 108 unchanged stocks. By the end of the session, the total market capitalization for the IHSG stood at Rp12,421 trillion.
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Summary
The Bisnis-27 Index experienced a significant decline of 2.02% on May 8, 2026, closing at 471.17. The market sentiment remained bearish throughout the session, with 22 of the 27 constituent stocks finishing in negative territory. Major declines were led by PT Vale Indonesia Tbk. (INCO), PT Merdeka Battery Materials Tbk. (MBMA), and PT Bumi Resources Minerals Tbk. (BRMS), which saw sharp drops in their share prices.
This downward trend reflected the broader market performance, as the Jakarta Composite Index (IHSG) also fell by 2.86% to end at 6,969.39. Despite the overall slump, a few companies, such as PT Mitra Adiperkasa Tbk. (MAPI), managed to achieve notable gains. Trading activity remained high with 56.3 billion shares exchanged, highlighting a market-wide trend skewed heavily toward the downside.