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Sea Sonic 6203

Close 47.6 ▼ 2 (−4.03%)
End-of-day data, not real-time quotes
Four-Light Health Check
Overall score 56/ 100
Average −4 vs. yesterday
  • 📈 Fundamentals 🔴 Weak Same as yesterday
  • 👁 Flows 🟢 Strong Same as yesterday
  • 📊 Technicals 🔴 Weak Same as yesterday
  • 💰 Valuation 🟢 Strong Same as yesterday
💡 Worth noting today
  • Technical KD death cross (K 14.8 / D 15.4) New
  • Valuation P/E of 8.5x sits in the historically cheap band
  • Technical RSI (14) below 20, in the oversold zone (7.5)
  • Technical KD in the low zone below 20 (K 14.8 / D 15.4)
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Sea Sonic (6203) Four-Light Health Check

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Weighting：📈 Fundamentals %｜👁 Flows %｜📊 Technical %｜💰 Valuation %

Sea Sonic (6203)

Overall health score / 100

weight %

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Four-light detail
  • 📈 Fundamentals -
  • 👁 Flows -
  • 📊 Technicals -
  • 💰 Valuation -
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Data as of: ｜This site is not a licensed securities investment consultancy. The four lights are a statistical summary of public information and do not constitute investment advice.

Sea Sonic (6203) Technical indicators

End-of-day data, not real-time quotes
  • Open 49.8
  • High 49.8
  • Low 47.6
  • Close 47.6
  • Volume 151
  • Prev close 49.6

Sea Sonic (6203) today sits below the 5-, 20- and 60-day averages in a bearish alignment. The MACD histogram stays negative and is widening, KD is 15 (already in the oversold zone below 20), RSI is 8 and sits in the oversold zone.

Signals today

  • ● Bearish moving-average alignment (close < 5-day < 20-day < 60-day)
  • ● KD death cross
  • ● KD is 15, in the oversold zone below 20
  • ● RSI is 8, sitting in the oversold zone
  • ● MACD keeps a negative histogram
  • ● The price broke below the lower Bollinger band — watch for a rebound

Indicator values

Item Value
Close 47.60
5-day MA 49.50
20-day (monthly) MA 54.40
60-day (quarterly) MA 58.10
120-day (half-yearly) MA 62.47
240-day (yearly) MA 66.03
K (9) 14.75
D (9) 15.39
RSI (14) 7.53
Bollinger upper band (20) 60.85
Bollinger lower band (20) 47.96
DIF (12,26) -2.61
MACD (9) -1.96
OSC histogram -0.65
Volume (lots) 151
20-day avg. volume (lots) 76
Volume ratio (volume ÷ 20-day avg.) 1.99
Indicator

Sea Sonic (6203) Monthly revenue

Latest revenue for 10/2026 was NT$200.24M, MoM +42.85%, YoY -26.93%.
Cumulative revenue through 10/2026 was NT$1.66B, cumulative YoY -31.75%.
Full-year 2025 revenue was NT$2.79B.
Month Close Revenue (NT$M) MoM change YoY change YTD vs. same period last year
Month Close Revenue (NT$M) MoM change YoY change YTD vs. same period last year
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Sea Sonic (6203) EPS

Latest EPS for Q2 2026 was NT$0.52, QoQ -62%, YoY +152%.
Cumulative EPS through Q2 2026 was NT$1.89, YoY +128%.
Full-year 2025 EPS was NT$5.51.
Forecast Sea Sonic's next-quarter EPS See fair value & river charts

Income statement

Year / quarter Close Revenue (NT$M) Gross profit Operating income Net income EPS

Sea Sonic (6203) Profitability

ROE / ROA (%)

Year / quarter Close Quarterly ROE Trailing 4Q ROE Quarterly ROA Trailing 4Q ROA

Sea Sonic (6203) — is it a buy?

P/E river chart

The P/E river chart is a valuation tool best suited to companies with stable earnings.

Rising river: earnings power is steadily improving.
Flat river: earnings power is relatively stable.
Falling river: earnings power is deteriorating.

The chart splits P/E into three bands: red, yellow and blue.
The current price sits in the blue band, meaning the share price is at a relatively low level
The P/E river chart is VIP content

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P/B river chart

The P/B river chart is a valuation tool best suited to companies with unstable earnings, such as cyclicals.

Rising river: book value is steadily improving.
Flat river: book value is relatively stable.
Falling river: book value is deteriorating.

The chart splits P/B into three bands: red, yellow and blue.
Based on the latest book value, the current price sits in the blue band, meaning the share price is at a relatively low level.
The P/B river chart is VIP content

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EPS forecast Peers

Sea Sonic (6203) Dividend policy

The latest ex-dividend date was 2026/08/04, distribution No.1 of 2026, paying a cash dividend of NT$4, a cash yield of 6.22%.
Over the past five years the average cash dividend was NT$4.49, for an average cash yield of 6.28%.
Year Ex-date Price before ex-date Cash dividend Payment date Cash yield Stock dividend

Sea Sonic (6203) Institutional flows, margin & short

Date Foreign Inv. Trust Dealer Total
Date Margin balance (lots) Short balance (lots) Short/margin ratio (%)
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sector ranking

Ticker Health score Close Change Volume Turnover (100M)

()
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Sea Sonic (6203) — what it does

Sea Sonic (6203) full name: Sea Sonic, in the 電子零組件業 sector, with paid-in capital of 8.24 億 and a market cap of 39.22 億.
Founded on 1975/09/19, listed on the TPEx on 2002/12/26,
its principal business is 交換式電源供應器(Switching Power Supplies,SPS)之生產與銷售.

Company Sea Sonic Website
Chairman 張昀琦 President 孫崇熙
Founded 1975/09/19 TPEx listing date 2002/12/26
Industry 電子零組件業 Business tax ID 04329168
Address 台北市內湖區內湖路一段360巷19號8樓
Main business 交換式電源供應器(Switching Power Supplies,SPS)之生產與銷售
Paid-in capital 8.24 億
Ordinary shares issued 8,240.14 萬 shares
Market cap 39.22 億 (2026/11/12)
Preferred shares 0 shares
Auditor 勤業眾信聯合會計師事務所
Transfer agent 統一綜合證券股份有限公司

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