PRMW.TO vs. COHR

Last updated Jun 5, 2026

PRMW.TO (Primo Water Corporation) and COHR (Coherent, Inc.) are both stocks. PRMW.TO operates in Beverages - Non-Alcoholic (Consumer Defensive), while COHR operates in Scientific & Technical Instruments (Technology). At a 0.16 correlation, their price movements are largely independent.

Performance

PRMW.TO vs. COHR - Performance Comparison

The chart below illustrates the hypothetical performance of a CA$10,000 investment in Primo Water Corporation (PRMW.TO) and Coherent, Inc. (COHR). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

PRMW.TO is traded in CAD, while COHR is traded in USD. To make them comparable, the COHR values have been converted to CAD using the latest available exchange rates.

Returns By Period

PRMW.TO

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

COHR

• 1D: -10.46%
• 1M: 11.82%
• YTD: 107.47%
• 6M: 109.22%
• 1Y: 382.45%
• 3Y*: 117.52%
• 5Y*: 44.44%
• 10Y*: 34.97%

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

PRMW.TO vs. COHR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PRMW.TO Primo Water Corporation	0.00%	0.00%	89.26%	-3.47%	-4.40%	13.08%	13.96%	-5.42%	-8.31%	39.84%
COHR Coherent, Inc.	107.47%	85.90%	136.32%	21.29%	-44.97%	-10.86%	121.79%	-1.37%	-25.00%	48.26%

Correlation

The correlation between PRMW.TO and COHR is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (3Y) Calculated over the trailing 3-year period	0.04
Correlation (5Y) Calculated over the trailing 5-year period	0.12
Correlation (10Y) Calculated over the trailing 10-year period	0.17
Correlation (All Time) Calculated using the full available price history since Jun 25, 2009	0.16

The correlation between PRMW.TO and COHR shifts across timeframes, from 0.04 (3 years) to 0.17 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

EPS PRMW.TO : CA$0.29 COHR : $1.64K
PE Ratio PRMW.TO : 127.08 COHR : 0.23
PEG Ratio PRMW.TO : 0.17 COHR : 0.04
PS Ratio PRMW.TO : 3.25 COHR : 0.02
Total Revenue (TTM) PRMW.TO : CA$4.34B COHR : $1.81T
Gross Profit (TTM) PRMW.TO : CA$1.71B COHR : $1.76B
EBITDA (TTM) PRMW.TO : CA$835.90M COHR : $960.76M

Return for Risk

PRMW.TO vs. COHR — Risk / Return Rank

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

COHR

COHR Risk / Return Rank: 97
COHR Sharpe Ratio Rank: 99
COHR Sortino Ratio Rank: 95
COHR Omega Ratio Rank: 95
COHR Calmar Ratio Rank: 99
COHR Martin Ratio Rank: 99

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.

PRMW.TO vs. COHR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Primo Water Corporation (PRMW.TO) and Coherent, Inc. (COHR). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	PRMW.TO	COHR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	5.37	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.74	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.64	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.51	—

Drawdowns

Drawdown Indicators

	PRMW.TO	COHR	Difference
Max Drawdown Largest peak-to-trough decline	—	-70.53%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-25.20%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-54.33%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-60.60%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-70.53%	—
Current Drawdown Current decline from peak	—	-11.06%	—
Average Drawdown Average peak-to-trough decline	—	-24.85%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	9.28%	—

Volatility

Volatility by Period

	PRMW.TO	COHR	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	28.98%	—
Volatility (6M) Calculated over the trailing 6-month period	—	55.25%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	71.87%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	60.15%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	55.25%	—

Dividends

PRMW.TO vs. COHR - Dividend Comparison

Neither PRMW.TO nor COHR has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COHR Coherent, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
PRMW.TO Primo Water Corporation	0.00%	0.00%	0.72%	1.60%	1.33%	1.08%	1.20%	1.35%	1.26%	1.14%	2.11%	1.57%

Financials

Frequently Asked Questions

Can I hold both PRMW.TO and COHR in my portfolio?

PRMW.TO and COHR have a correlation of 0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.