Bank Central Asia: Dissecting BBCA’s share price drivers: NII is key
- We deep dived into BBCA’s share price drivers: net interest income (NII) is the single dominant driver
- Provisions and loan growth are less important drivers for BBCA’s share price
- BBCA’s share price has corrected -21% year-to-date, presenting an opportunity to accumulate as we expect NII to sequentially improve into FY26F
- Maintain BUY with a TP of IDR12,000; BCA remains our top pick among Indo banks
Net interest income as the Principal Share Price Driver
While consensus sees BBCA as “the premium bank” with stable loan growth and asset quality, we argue the stock’s premium valuation is anchored to a dominant Principal Share Price Driver (PSPD), amongst other factors that influence share price movements: its net interest income.
We examined share price performance during the Global Financial Crisis (2008–2009), commodity downturn (2014–2015), and the COVID-19 pandemic (2020). over a series of tests. First, a correlation analyses between BBCA’s share price and each potential drivers across 20 years of quarterly TTM and y/y growth data. Second, an examination on whether the relationships held with lagged fundamentals. Third, tests on episodes where loan growth slowed but the stock price rose, to check if NII still correlated to the rerating. Finally, sensitivity analyses using realistic swings for each driver.
BBCA is the most sensitive Indonesian bank to NII trends
BBCA’s share price demonstrated a stronger correlation with the trajectory of NII rather than loan growth or provision trends, due to BBCA track record in maintaining prudent asset quality, we believe those traits are still applicable this time, despite BBCA’s loan growth performance being higher than that of peers and industry.
We forecast BBCA’s NII to grow at an 8% CAGR from 2024 to 2027F, outperforming its peers' average of 2.5% over the same period, which should continue to rerate to BBCA’s share price. We forecast BBCA’s NII to grow by 7% in both 2025F and 2026F, accelerating to 9% in 2027F. This growth will be primarily driven by around 10% loan growth in 25-27F, slightly repressed loan yields, and an intact funding cost profile – a combination that underscores the strength of BBCA’s pricing discipline and liability management. Given that NII growth remains robust relative to peers, we believe BBCA’s share price should rerate accordingly, in line with its historical valuation behaviour.
We explored a series of analysis, beginning with simple correlation tests and then moving into lagged checks, case studies, sensitivity analysis, and rebuttals. We began with the long-run co-movement between BBCA’s share price and each candidate PSPD.
1) 20 years correlation analysis, the co-movement between BBCA’s share price and each candidate PSPD over the past 20 years was analysed using TTM data and y/y growth data. While most metrics showed an upward trend alongside the stock, NII demonstrated the tightest correlation at 0.97 (while other variables ranged between 0.55-0.96) even when tested with lagged fundamentals. This indicates that NII, not loan growth or provisions, is most consistently aligned with the long-term trajectory of BBCA’s valuation.
2) Investors’ NII expectations drove the share price despite temporary weaknesses. Even when NII is lagged by two quarters and a full year, the relationship with BBCA’s share price remains intact. This suggests that the stock not only moves in tandem with reported NII but also anticipates its trajectory. Across all specifications – contemporaneous, two-quarter lag, and one-year lag – NII continued to show the strongest alignment with share price movements compared to loan growth, provisions, CASA, fees, or OPEX. This robustness reinforces our conclusion that NII is the dominant PSPD for BBCA.
3) Looking through different economic cycles, we examined three distinct episodes where BBCA’s loan growth slowed sharply, yet the stock diverged from volumes and followed NII instead.
- Global Financial Crisis (2008–2009):
What set BBCA apart was the sustained growth in NII, underpinned by stable funding costs and margin improvement. NII proved to be a defensive earnings pillar, maintaining the bank’s profitability even as asset growth slowed. Investors appeared to recognise this dynamic, anchoring BBCA’s valuation to earnings durability rather than headline loan growth. This episode highlights how BBCA’s pricing power, funding mix, and cost discipline provided insulation from macro shocks, allowing the stock to preserve value in a turbulent environment.
- Commodity downturn (2014–2015):
As a result, NII continued to grow, reinforcing the bank’s ability to generate stable earnings without relying on aggressive balance sheet expansion. The market responded favourably – BBCA’s share price rerated despite sluggish loan growth, as investors rewarded the bank’s superior earnings quality and disciplined risk management. This divergence underscored that valuation was more sensitive to profit sustainability than credit quantity, and once again, NII proved to be the key driver of investor confidence.
- COVID-19 pandemic (2020):
This resilience in core earnings enabled a faster recovery in investor sentiment. BBCA’s share price rebounded to pre-pandemic levels within 334 days, well ahead of Mandiri and BBNI, who took nearly two years to regain their pre-crisis valuations. The sharp recovery in BBCA’s stock reinforces the notion that investors placed a premium on earnings visibility and NII resilience, even as loan books contracted. It also illustrates the strong forward-looking correlation between NII and share price, as the market quickly discounted a recovery in BBCA’s fundamental value.
4) NII is the key driver of EPS, we tested the relative importance of each PSPD by applying realistic swings around their current growth rates. Each variable was flexed by ±1SD (standard deviation) from its 10-year history, representing the range of outcomes typically seen in a normal cycle. The results show that NII continued to dominate earnings sensitivity: a 1SD swing in NII translates to a 4.4% change in earnings. By comparison, non-II translated to 2.6% change in earnings, 2.1% in loan growth, and 1.7% in provisions. Even when shocks were scaled to historically realistic magnitudes, NII’s impact exceeded that of all other PSPDs, reinforcing its status as the principal driver of BBCA’s valuation
Valuation and recommendation
Our target price of IDR12,000 implies FY26F PBV of 4.6x vs. current PBV of 3.0x; we expect share price to rerate on better NII growth ahead. BBCA is trading at -1.5SD of its 10 years average PBV this reflects investors’ concern on Indonesia economic condition and underperforming JCI, meanwhile we believe BBCA should trade at around +2 SD of its historical PBV multiple level due to consistent NII growth, maintaining high ROE while keeping assets quality in check. BBCA proved its defensiveness, historical resilience during downturns, and the structural alignment between its NII trajectory and share price performance. The market’s current discount, in our view, overlooks these enduring strengths.
We believe the 21% YTD correction in BBCA’s share price is excessive and does not accurately reflect its solid underlying fundamentals, which remain relatively resilient compared to peers. The risk of material earnings deterioration appears limited, underpinned by BBCA’s consistent outperformance in NII growth—outpacing the industry for nearly three consecutive years. With a simple average ROE of 21.3% projected over the next three years and the current implied valuation at 17.1%, we view the market's stance as overly bearish. BBCA’s robust earnings performance and strong capacity to distribute dividends further support our constructive view.
We would like to thank Shaila Varelie Tritama, our research professional, for her assistance in preparing the research report.
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