APH vs. SKHY: Amphenol vs. SK hynix Stock Comparison

Company Profile

Amphenol (APH) and SK hynix (SKHY) share the Information Technology sector but sit in different industry groups — APH in Technology Hardware & Equipment and SKHY in Semiconductors & Semiconductor Equipment.

Amphenol (APH) has been public since November 8, 1991, giving it decades of market history across multiple cycles, while SK hynix (SKHY) listed only on July 10, 2026 and lacks comparable through-cycle data.

Amphenol (APH) trades as ordinary local shares, while SK hynix (SKHY) trades as an ADR — compare with FX exposure, depositary-program fees, and dividend-withholding-tax differences in mind.

Price Performance

Cumulative Growth

Trailing Returns

Calendar-Year Returns

Performance Metrics

Risk Profile

Drawdown History

Return Distribution

Risk Metrics

SK hynix (SKHY) carries a highly aggressive beta of 5.36, indicating much higher sensitivity to broad-market moves, whereas Amphenol (APH) is closer to market-like at 1.27 — a noticeable difference in market-sensitivity profile.

Risk-Adjusted Performance

Risk-Return Positioning

Both APH and SKHY need 1-year volatility and 1-year return to plot risk-return positioning.

Risk-Adjusted Metrics

Profitability

Both companies show strong equity returns, but SK hynix (SKHY) at 92.54% is the standout with ROE above its industry range; Amphenol (APH) at 40.08% also sits in the top quartile.

SK hynix (SKHY) at 70.27% keeps the most of each sales dollar — above its industry’s net margin range — and Amphenol (APH) at 17.95% also retains a top-quartile share.

SK hynix (SKHY) at 79.66% shows unusually strong operating efficiency — above its industry’s operating margin range — and Amphenol (APH) at 29.68% also operates in the top quartile.

Profitability Metrics

Growth

Both Amphenol (APH) at 51.71% and SK hynix (SKHY) at 46.76% sit in the top peer quartile for revenue growth, so each is growing its top line faster than typical industry peers.

Both Amphenol (APH) at 73.96% and SK hynix (SKHY) at 112.46% sit in the top peer quartile for EPS growth, so each is compounding per-share earnings faster than typical industry peers.

Growth Metrics

Financial Strength

Amphenol (APH) at 1.94 keeps current ratio within its industry’s typical mid-range, while SK hynix (SKHY) at 26.88 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets relative to peers.

SK hynix (SKHY) at 0.05 carries an industry-typical debt-to-equity mix, while Amphenol (APH) at 1.03 uses more debt funding than most peers.

Financial Strength Metrics

Dividends

Amphenol (APH) at 0.70% earns its spot in the top quartile of its industry’s yields; SK hynix (SKHY) at 2,118.64% is past the top of its own peer range — territory where a dividend-safety check matters more than the headline number.

SK hynix (SKHY) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Amphenol (APH) reports a payout of 21.74%, ranking against industry peers normally.

Dividend Metrics

Valuation

SK hynix (SKHY) at 8.12 sits in the cheaper P/E ratio quartile, while Amphenol (APH) at 32.43 is closer to its industry’s usual earnings multiple — a discount for SKHY, though growth and earnings durability still matter.

SK hynix (SKHY) at 0.00 sits in the cheaper P/S ratio quartile while Amphenol (APH) at 5.57 prices around its industry’s middle — SKHY costs less per dollar of sales, though read it alongside growth and margins.

SK hynix (SKHY) at 3.95 is valued about in line with its industry on P/B ratio, while Amphenol (APH) at 10.75 carries an above-peer premium to book — APH is pricier on assets.

Valuation Metrics