GLW vs. SNDK: Corning vs. Sandisk Stock Comparison

June 28, 2026

How do Corning (GLW) and Sandisk (SNDK) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Corning (GLW) and Sandisk (SNDK) both fall under the Technology Hardware & Equipment industry group, but GLW is classified in Electronic Equipment, Instruments & Components while SNDK is classified in Technology Hardware, Storage & Peripherals.

Corning (GLW) carries decades of public-market history since December 31, 1981, while Sandisk (SNDK) listed on February 13, 2025 — long-window comparisons have far more historical data on the GLW side.

Company profile comparison for Corning (GLW) and Sandisk (SNDK)
Profile Item	GLW	SNDK
Name	Corning Incorporated	SanDisk Corporation
Country/Region	United States	United States
GICS Sector	Information Technology	Information Technology
GICS Industry Group	Technology Hardware & Equipment	Technology Hardware & Equipment
GICS Industry	Electronic Equipment, Instruments & Components	Technology Hardware, Storage & Peripherals
GICS Sub-Industry	Electronic Components	Technology Hardware, Storage & Peripherals
Market Capitalization	190.24 billion USD	309.61 billion USD
Currency	USD	USD
Exchange	NYSE	Nasdaq
Listing Date	December 31, 1981	February 13, 2025
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

GLW

SNDK

Corning (GLW) vs. Sandisk (SNDK): Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

Loading price history…

Trailing total returns for Corning (GLW) and Sandisk (SNDK). Returns over one year are annualized.

Performance Metrics

Price performance metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
Total Return (1Y)	332.24%	4,307.06%

Risk Profile

Drawdown History

GLW

SNDK

Corning (GLW) vs. Sandisk (SNDK): Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Sandisk (SNDK) carries a highly aggressive beta of 4.68, indicating much higher sensitivity to broad-market moves, whereas Corning (GLW) is closer to market-like at 1.09 — a noticeable difference in market-sensitivity profile.

Risk Metrics

Risk profile metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
Volatility (1Y, Annualized)	60.00%	104.43%
Beta (5Y)	1.09	4.68
Avg. Volume (3M)	13.84M	14.25M

Risk-Adjusted Performance

Risk-Return Positioning

GLW and SNDK are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Profitability

ROE (TTM)

Sandisk (SNDK) at 39.30% sits in the top ROE quartile, while Corning (GLW) at 16.74% is closer to the peer norm — stronger capital efficiency for SNDK.

GLW

Technology Hardware & Equipment industry group

16.74%

Max: 44.16%
Q3: 19.42%
GLW: 16.74%
Median: 10.99%
Q1: 1.30%
Min: -25.17%

SNDK

Technology Hardware & Equipment industry group

39.30%

Max: 44.16%
SNDK: 39.30%
Q3: 19.42%
Median: 10.99%
Q1: 1.30%
Min: -25.17%

Corning (GLW) vs. Sandisk (SNDK): A comparison of their ROE against the Technology Hardware & Equipment industry group benchmark.

Net Margin (TTM)

Sandisk (SNDK) at 34.19% converts revenue to bottom-line profit above its industry’s benchmark range, while Corning (GLW) at 11.09% keeps roughly the typical share for its industry.

GLW

Technology Hardware & Equipment industry group

11.09%

Max: 30.43%
Q3: 12.35%
GLW: 11.09%
Median: 4.70%
Q1: 0.00%
Min: -14.09%

SNDK

Technology Hardware & Equipment industry group

34.19%

SNDK: 34.19%
Max: 30.43%
Q3: 12.35%
Median: 4.70%
Q1: 0.00%
Min: -14.09%

Corning (GLW) vs. Sandisk (SNDK): A comparison of their net margin against the Technology Hardware & Equipment industry group benchmark.

Operating Margin (TTM)

Sandisk (SNDK) at 69.98% shows unusually strong operating efficiency — above its industry’s operating margin range — and Corning (GLW) at 15.66% also operates in the top quartile.

GLW

Technology Hardware & Equipment industry group

15.66%

Max: 32.28%
GLW: 15.66%
Q3: 15.32%
Median: 6.62%
Q1: 1.88%
Min: -18.24%

SNDK

Technology Hardware & Equipment industry group

69.98%

SNDK: 69.98%
Max: 32.28%
Q3: 15.32%
Median: 6.62%
Q1: 1.88%
Min: -18.24%

Corning (GLW) vs. Sandisk (SNDK): A comparison of their operating margin against the Technology Hardware & Equipment industry group benchmark.

Profitability Metrics

Profitability metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
ROE (TTM)	16.74%	39.30%
ROA (TTM)	5.38%	22.82%
Net Margin (TTM)	11.09%	34.19%
Operating Margin (TTM)	15.66%	69.98%
Gross Margin (TTM)	36.38%	56.04%

Growth

Revenue Growth

Corning (GLW) vs. Sandisk (SNDK): A comparison of their Revenue Growth across different time periods.

Revenue Growth Metrics

Revenue growth metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
Revenue Growth (YoY)	19.14%	10.39%
Revenue Growth (3Y CAGR)	3.27%	--

EPS Growth

Corning (GLW) vs. Sandisk (SNDK): A comparison of their EPS Growth across different time periods.

EPS Growth Metrics

EPS growth metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
EPS Growth (YoY)	215.52%	--
EPS Growth (3Y CAGR)	5.92%	--

Financial Strength

Current Ratio (MRQ)

Corning (GLW) at 1.61 keeps current ratio within its industry’s typical mid-range, while Sandisk (SNDK) at 4.78 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets relative to peers.

GLW

Technology Hardware & Equipment industry group

1.61

Max: 5.80
Q3: 3.18
Median: 1.90
GLW: 1.61
Q1: 1.28
Min: 0.51

SNDK

Technology Hardware & Equipment industry group

4.78

Max: 5.80
SNDK: 4.78
Q3: 3.18
Median: 1.90
Q1: 1.28
Min: 0.51

Corning (GLW) vs. Sandisk (SNDK): A comparison of their current ratio against the Technology Hardware & Equipment industry group benchmark.

Debt / Equity (MRQ)

Sandisk (SNDK) at 0.02 keeps leverage in the lower industry quartile, while Corning (GLW) at 0.80 runs a more typical debt-to-equity mix.

GLW

Technology Hardware & Equipment industry group

0.80

Max: 2.02
Q3: 0.89
GLW: 0.80
Median: 0.31
Q1: 0.06
Min: 0.00

SNDK

Technology Hardware & Equipment industry group

0.02

Max: 2.02
Q3: 0.89
Median: 0.31
Q1: 0.06
SNDK: 0.02
Min: 0.00

Corning (GLW) vs. Sandisk (SNDK): A comparison of their debt-to-equity ratio against the Technology Hardware & Equipment industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
Current Ratio (MRQ)	1.61	4.78
Debt / Equity (MRQ)	0.80	0.02
Net Debt / EBITDA	2.09	-0.63

Dividends

Dividend Yield (TTM)

Sandisk (SNDK) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Corning (GLW) reports a yield of 0.49%, ranking against industry peers normally.

GLW

Technology Hardware & Equipment industry group

0.49%

Max: 0.70%
GLW: 0.49%
Q3: 0.33%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

SNDK

Technology Hardware & Equipment industry group

0.00%

Max: 0.70%
Q3: 0.33%
SNDK: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

Corning (GLW) vs. Sandisk (SNDK): A comparison of their dividend yield against the Technology Hardware & Equipment industry group benchmark.

Dividend Payout Ratio (TTM)

Sandisk (SNDK) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Corning (GLW) reports a payout of 53.85%, ranking against industry peers normally.

GLW

Technology Hardware & Equipment industry group

53.85%

GLW: 53.85%
Max: 36.36%
Q3: 14.56%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

SNDK

Technology Hardware & Equipment industry group

0.00%

Max: 36.36%
Q3: 14.56%
SNDK: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

Corning (GLW) vs. Sandisk (SNDK): A comparison of their payout ratio against the Technology Hardware & Equipment industry group benchmark.

Dividend Metrics

Dividend metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
Dividend Yield (TTM)	0.49%	0.00%
Dividend Payout Ratio (TTM)	53.85%	0.00%

Valuation

P/E Ratio (TTM)

Sandisk (SNDK) at 71.43 is near its industry’s usual P/E ratio, while Corning (GLW) at 106.27 sits in the richer quartile — GLW needs stronger growth or earnings quality to justify the premium.

GLW

Technology Hardware & Equipment industry group

106.27

Max: 158.77
GLW: 106.27
Q3: 79.26
Median: 37.06
Q1: 22.04
Min: 8.47

SNDK

Technology Hardware & Equipment industry group

71.43

Max: 158.77
Q3: 79.26
SNDK: 71.43
Median: 37.06
Q1: 22.04
Min: 8.47

Corning (GLW) vs. Sandisk (SNDK): A comparison of their P/E ratio against the Technology Hardware & Equipment industry group benchmark.

P/S Ratio (TTM)

Both look expensive on sales: Corning (GLW) at 11.66 sits in the upper P/S ratio quartile, and Sandisk (SNDK) at 23.48 prices even higher, above its industry range.

GLW

Technology Hardware & Equipment industry group

11.66

Max: 18.49
GLW: 11.66
Q3: 8.40
Median: 3.72
Q1: 1.43
Min: 0.00

SNDK

Technology Hardware & Equipment industry group

23.48

SNDK: 23.48
Max: 18.49
Q3: 8.40
Median: 3.72
Q1: 1.43
Min: 0.00

Corning (GLW) vs. Sandisk (SNDK): A comparison of their P/S ratio against the Technology Hardware & Equipment industry group benchmark.

P/B Ratio (MRQ)

Both look rich against book: Corning (GLW) at 16.97 sits in the upper P/B ratio quartile, and Sandisk (SNDK) at 22.46 prices even higher, above its industry range.

GLW

Technology Hardware & Equipment industry group

16.97

Max: 18.50
GLW: 16.97
Q3: 8.94
Median: 4.37
Q1: 2.16
Min: -3.51

SNDK

Technology Hardware & Equipment industry group

22.46

SNDK: 22.46
Max: 18.50
Q3: 8.94
Median: 4.37
Q1: 2.16
Min: -3.51

Corning (GLW) vs. Sandisk (SNDK): A comparison of their P/B ratio against the Technology Hardware & Equipment industry group benchmark.

Valuation Metrics

Valuation metrics for Corning (GLW) and Sandisk (SNDK)
Metric	GLW	SNDK
P/E Ratio (TTM)	106.27	71.43
P/S Ratio (TTM)	11.66	23.48
P/B Ratio (MRQ)	16.97	22.46
Free Cash Flow Yield (TTM)	0.32%	0.73%