SNDK vs. RGEN

Last updated Apr 1, 2026

Compare and contrast key facts about Sandisk Corp (SNDK) and Repligen Corporation (RGEN).

Performance

SNDK vs. RGEN - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Sandisk Corp (SNDK) and Repligen Corporation (RGEN). The values are adjusted to include any dividend payments, if applicable.

SNDK vs. RGEN - Yearly Performance Comparison

	2026 (YTD)	2025
SNDK Sandisk Corp	167.65%	388.44%
RGEN Repligen Corporation	-28.10%	-0.53%

Fundamentals

Market Cap SNDK : $99.11B RGEN : $6.66B
EPS SNDK : -$6.94 RGEN : $0.86
PS Ratio SNDK : 10.67 RGEN : 9.02
PB Ratio SNDK : 9.70 RGEN : 3.16
Total Revenue (TTM) SNDK : $8.93B RGEN : $738.25M
Gross Profit (TTM) SNDK : $3.11B RGEN : $386.41M
EBITDA (TTM) SNDK : -$589.00M RGEN : $161.65M

Returns By Period

In the year-to-date period, SNDK achieves a 167.65% return, which is significantly higher than RGEN's -28.10% return.

SNDK

• 1D: 10.98%
• 1M: -0.00%
• YTD: 167.65%
• 6M: 466.26%
• 1Y: 1,234.47%
• 3Y*: —
• 5Y*: —
• 10Y*: —

RGEN

• 1D: 5.68%
• 1M: -8.48%
• YTD: -28.10%
• 6M: -11.86%
• 1Y: -7.40%
• 3Y*: -11.22%
• 5Y*: -9.63%
• 10Y*: 15.91%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

SNDK vs. RGEN — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SNDK

SNDK Risk / Return Rank: 99
SNDK Sharpe Ratio Rank: 100
SNDK Sortino Ratio Rank: 99
SNDK Omega Ratio Rank: 98
SNDK Calmar Ratio Rank: 100
SNDK Martin Ratio Rank: 100

RGEN

RGEN Risk / Return Rank: 32
RGEN Sharpe Ratio Rank: 34
RGEN Sortino Ratio Rank: 33
RGEN Omega Ratio Rank: 32
RGEN Calmar Ratio Rank: 31
RGEN Martin Ratio Rank: 29

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SNDK vs. RGEN - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sandisk Corp (SNDK) and Repligen Corporation (RGEN). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	SNDK	RGEN	Difference
Sharpe ratio Return per unit of total volatility	12.52	-0.16	+12.67
Sortino ratio Return per unit of downside risk	5.19	0.11	+5.08
Omega ratio Gain probability vs. loss probability	1.75	1.01	+0.74
Calmar ratio Return relative to maximum drawdown	31.16	-0.32	+31.48
Martin ratio Return relative to average drawdown	77.85	-0.76	+78.61
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SNDK vs. RGEN - Sharpe Ratio Comparison

The current SNDK Sharpe Ratio is 12.52, which is higher than the RGEN Sharpe Ratio of -0.16. The chart below compares the historical Sharpe Ratios of SNDK and RGEN, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SNDK	RGEN	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	12.52	-0.16	+12.67
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.19	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.35	—
Sharpe Ratio (All Time) Calculated using the full available price history	9.68	0.09	+9.59

Correlation

The correlation between SNDK and RGEN is 0.30, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

SNDK vs. RGEN - Dividend Comparison

Neither SNDK nor RGEN has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

SNDK vs. RGEN - Drawdown Comparison

The maximum SNDK drawdown since its inception was -47.50%, smaller than the maximum RGEN drawdown of -98.28%. Use the drawdown chart below to compare losses from any high point for SNDK and RGEN.

Drawdown Indicators

	SNDK	RGEN	Difference
Max Drawdown Largest peak-to-trough decline	-47.50%	-98.28%	+50.78%
Max Drawdown (1Y) Largest decline over 1 year	-38.43%	-36.07%	-2.36%
Max Drawdown (5Y) Largest decline over 5 years	—	-66.41%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-66.41%	—
Current Drawdown Current decline from peak	-17.71%	-63.66%	+45.95%
Average Drawdown Average peak-to-trough decline	-15.42%	-63.36%	+47.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.38%	15.30%	+0.08%

Volatility

SNDK vs. RGEN - Volatility Comparison

Sandisk Corp (SNDK) has a higher volatility of 30.93% compared to Repligen Corporation (RGEN) at 14.28%. This indicates that SNDK's price experiences larger fluctuations and is considered to be riskier than RGEN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SNDK	RGEN	Difference
Volatility (1M) Calculated over the trailing 1-month period	30.93%	14.28%	+16.65%
Volatility (6M) Calculated over the trailing 6-month period	80.48%	29.33%	+51.15%
Volatility (1Y) Calculated over the trailing 1-year period	99.80%	48.13%	+51.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	97.88%	49.99%	+47.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	97.88%	45.63%	+52.25%

Financials

SNDK vs. RGEN - Profitability Comparison

The chart below illustrates the profitability comparison between Sandisk Corp and Repligen Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

SNDK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Sandisk Corp reported a gross profit of 1.54B and revenue of 3.03B. Therefore, the gross margin over that period was 50.9%.

RGEN - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Repligen Corporation reported a gross profit of 104.00M and revenue of 197.91M. Therefore, the gross margin over that period was 52.6%.

SNDK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Sandisk Corp reported an operating income of 1.07B and revenue of 3.03B, resulting in an operating margin of 35.2%.

RGEN - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Repligen Corporation reported an operating income of 18.00M and revenue of 197.91M, resulting in an operating margin of 9.1%.

SNDK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Sandisk Corp reported a net income of 803.00M and revenue of 3.03B, resulting in a net margin of 26.6%.

RGEN - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Repligen Corporation reported a net income of 13.00M and revenue of 197.91M, resulting in a net margin of 6.6%.