S4A

Thủy điện Sê San 4A ·HOSE ·2026Q1

▲▲ Improving positively

Operating efficiency is improving Net margin 52.47%, +15.11pp YoY
Price
33,000
Latest close
04 Jun 2026
P/E 7.97x
P/B 2.15x
EPS 4,141
BVPS 15,316
ROE 28.7%
ROA 17.5%
Profit Margin 52.5%
Asset Turnover 0.33x
Equity Mult. 1.64x

TTM · Applied to: EPS, ROE, ROA, Net Margin, Asset Turnover, Debt/Equity

What Is Changing

On a TTM 2026Q1 basis, S4A is improving on both revenue and margins, suggesting current growth is backed by both scale and operating efficiency — the growth momentum has held across consecutive periods. The next test will be whether this pace holds as the comparison base gets tougher.

TTM REVENUE
VND 333bn
+32.8%YoY
NET MARGIN
52.47%
+15.1ppYoY
TTM NET PROFIT
VND 175bn
+86.5%YoY
Metric Q1'26 Q4'25 Q3'25 Q2'25 Q1'25 Q4'24 Q3'24 Q2'24 Q1'24 Q4'23 Q3'23 Q2'23
Revenue 53.6 128.3 87.6 63.5 47.2 78.4 86.9 38.3 44.1 100.3 81.3 52.0
Growth -58% +46% +38% +35% -40% -10% +127% -13% -56% +23% +56%
Net Income 47.4 71.1 42.1 14.1 18.5 27.2 50.0 -1.9 12.9 56.6 40.3 18.3
Net Margin 88.43% 55.42% 48.04% 22.26% 39.09% 34.68% 57.53% -5.09% 29.32% 56.48% 49.62% 35.30%

Drivers of S4A's profit

TTM

Net profit attributable to parent increased vs last year, mainly helped by higher gross profit. Supporting and offsetting drivers:

Gross profit ↑ 58.9bn
Other profit ↑ 33.2bn
Tax ↑ 15.5bn
TTM

Net profit attributable to parent increased vs prior quarter, mainly helped by better other profit. Supporting and offsetting drivers:

Other profit ↑ 35.0bn
Gross profit ↑ 4.7bn
Tax ↑ 9.8bn

Financial Highlights

Detailed analysis of each financial dimension

ROE = Profit Margin × Asset Turnover × Equity Multiplier

2025Q1 16.7% = 37.4% × 0.25 × 1.75
2026Q1 28.7% = 52.5% × 0.33 × 1.64

ROE rose from 16.7% to 28.7% — mainly driven by net margin, despite leverage moving in the opposite direction.

Net margin: 52.5% +15.1pp Asset turnover: 0.33x +0.08x Leverage: 1.64x -0.12x

Is the profit sustainable?

Margins are improving and earnings quality is solid — a durable foundation for ROE.

very positive positive stable watch under pressure

What is driving the margin?

Net margin expanded to 52.47%, rising 15.1pp. The main driver is Gross margin rose 4.1pp, moving in line with the stronger net margin (with additional support from Other profit / Revenue rose 9.7pp and Net financial result / Revenue rose 4.6pp).

Most of the margin increase comes from non-core items — core operations have not kept pace, this is a margin expansion to watch carefully.

Profitability trend

Net Margin 52.47% +15.1pp
Gross Margin 59.16% +4.1pp
SG&A / Revenue 2.48% −0.4pp

TTM YoY · 2025Q1 -> 2026Q1

Is capital being used efficiently?

Capital efficiency for utilities should be read alongside regulated tariffs and long-cycle depreciation — ROIC of 16.7% reflects a large fixed-asset base.

Is capital being deployed efficiently?

ROIC expanded to 16.75%, rising 6.5pp. That translates to 16.75 in after-tax operating profit for every 100 units of operating capital. Both NOPAT margin rose 6.8pp and capital turnover rose 0.11x, with invested capital holding roughly steady — capital-return quality improved from both sides.

For utilities, ROIC reflects returns on a large fixed-asset base — this is a reference signal and should be read alongside regulated tariffs.

CAPITAL EFFICIENCY TREND

TTM YoY · 2025Q1 -> 2026Q1

ROIC 16.75% +6.5pp
NOPAT Margin 42.94% +6.8pp
Capital Turnover 0.39x +0.11x
Average Invested Capital 853.6bn −30.6bn

Balance Sheet

ROIC for utilities reflects a large fixed-asset base and regulated tariffs — the balance sheet below adds perspective. Capital structure is conservative with low leverage — liabilities at 0.75x equity, net debt at 0.24x equity.

Over the last 12 months, working capital released 0.0bn of cash.

Working Capital Drivers

TTM YoY · 2025Q1 -> 2026Q1

Receivables were broadly stable → neutral CFO:
Inventories were broadly stable → neutral CFO:
Payables were broadly stable → neutral CFO:

Working Capital Efficiency

Working capital is being managed more efficiently, supporting overall capital efficiency. Cash conversion cycle improved by 7.2 days versus the same period last year. The main moves came from DIO fell 4.4 days, DSO fell 0.6 days, and DPO rose 2.2 days.

All 3 drivers (collection, inventory, payables) are improving — working capital turnover is strengthening across the board.

For utilities, working capital cycle reflects regulated pricing mechanics and long-term settlement contracts — DSO/DIO/DPO should be treated as contextual signals rather than pure efficiency indicators.

Working Capital Efficiency

TTM YoY · 2025Q1 -> 2026Q1

Receivables 71.2 days −0.6 days
Inventory 0.5 days −4.4 days
Payables 2.3 days +2.2 days
Cash Conversion Cycle 69.4 days −7.2 days

Is financial risk significant?

Check leverage, liquidity, and cash-flow conversion.

Leverage & Liquidity

Leverage looks fairly comfortable, with net debt / equity at 0.24x and interest coverage at 5.08x.

At present, short-term debt accounts for 43.6% of total debt, cash equals 53.5% of debt, and total debt stands at 328.2bn.

Leverage for utilities reflects long-term capital needs for fixed assets and recovery through regulated pricing — elevated leverage is structural to the industry.

Leverage and liquidity trend

Net Debt / Equity 0.24x −0.35x
Interest Coverage 5.08x +2.13x
Cash / Debt 53.5% +38.6pp
Short-term Debt / Total Debt 43.6% +16.0pp
CFO / NI 1.17x +1.17x

TTM YoY · 2025Q1 -> 2026Q1

Cash Flow

With safe leverage noted above, cash flow below shows the self-funding capacity. Operating cash flow reached 119.1bn in 2025, against investing cash flow of 36.0bn.

Post-investment cash flow was positive +155.2bn. Financing cash flow was negative +148.5bn.

CFO / net income was 1.17x.

Track how much investment can be funded internally from operating cash flow.

For utilities, high capex and long investment cycles are structural — short-term FCF volatility does not reflect long-term cash generation through regulated pricing.

Cash Conversion

TTM Cash Conversion · 2025Q1 -> 2026Q1

CFO TTM 204.7bn +204.7bn
Cash Capex
FCF TTM

Investment Takeaway

The business is showing brightening signals, but the improvement is still early and not yet thick enough to read as a confirmed trend. The brighter spot is operating efficiency, with net margin improving 15.1 pp. The next item to monitor is the earnings mix, when non-core contribution is 18.2%.

Improvement: operating efficiency is getting better, with trailing-12M net margin at 52.47% after expanding 15.1pp versus the same period last year.

Watchpoint: cash flow is currently keeping pace with accounting earnings, with CFO / net income at 1.17x. Even so, net financial result still accounts for 18.2% of PBT, so the earnings mix still needs monitoring.

Statement Data

Item 2025 2024 2023 2022 2021
Net Revenue
326.6 247.7 286.4 308.1 285.0
Cost of Goods Sold
134.3 111.6 113.6 111.7 0.0
Gross Profit
192.3 136.1 172.8 196.4 177.1
Financial Expenses
30.6 38.4 24.6 28.8 -28.8
Selling Expenses
0.0 0.0 0.0 -0.0
General and Administrative Expenses
8.2 7.1 8.2 8.9 -7.4
Operating Profit
160.6 95.0 142.0 160.2 144.8
Profit Before Tax
162.1 98.3 145.2 186.8 149.0
Net Income
145.7 88.1 137.4 173.4 140.6
Profit Attributable to Parent
145.7 88.1 137.4 173.4 140.6
Earnings per Share
3,453.00 2,088.00 3,256.00 4,108.00 3,332.00

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