Jakarta. Shares of Indonesia's largest private lender, Bank Central Asia Tbk (BCA), tumbled to their lowest level in about five years on Friday as market rout and persistent foreign selling weighed heavily on the country's blue-chip stocks.

BCA's shares, traded under the ticker BBCA, closed down 6.45% at Rp 5,075, extending their weekly decline to 10.5%.

The selloff mirrored a sharp downturn in Indonesia's benchmark Jakarta Composite Index falling 4.2%, or 245 points, to 5,594.7.

Trading data showed around 572.6 million BBCA shares changed hands in 98,350 transactions, generating turnover of approximately Rp 2.96 trillion ($164 million).

Foreign investors remained aggressive sellers, recording net sales of about Rp 490.5 billion in BBCA shares during Friday's session. Year-to-date, cumulative foreign net selling in the stock has reached roughly Rp 31.3 trillion.

Analysts at BRI Danareksa Sekuritas said the stock remains locked in a bearish trend after confirming a head-and-shoulders pattern on its weekly chart, a technical formation often associated with further downside risks.

The brokerage said that selling pressure continues to dominate, with trading volumes increasing during price declines while the moving average convergence divergence (MACD) indicator remains negative.

According to the firm, BBCA is approaching a key support zone between Rp 4,775 and Rp 4,100, where buying interest could begin to emerge. However, the brokerage said the downtrend is likely to persist unless the stock can reclaim the Rp 5,700-6,000 range.

Despite the sharp decline in its share price, BCA's underlying business performance remains solid. The bank posted first-quarter 2026 net profit of Rp 14.68 trillion, up 4% from a year earlier, underscoring the resilience of its core operations even as investor sentiment toward Indonesian assets deteriorates.