HPHA.DE vs. RDDT

Last updated Jul 21, 2026

HPHA.DE (Heidelberg Pharma AG) and RDDT (Reddit, Inc.) are both stocks. HPHA.DE operates in Biotechnology (Healthcare), while RDDT operates in Internet Content & Information (Communication Services). Over the past year, HPHA.DE returned -42.79% vs 24.76% for RDDT. At a correlation of -0.00, they often move in opposite directions.

Performance

HPHA.DE vs. RDDT - Performance Comparison

The chart below illustrates the hypothetical performance of a €10,000 investment in Heidelberg Pharma AG (HPHA.DE) and Reddit, Inc. (RDDT). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

HPHA.DE is traded in EUR, while RDDT is traded in USD. To make them comparable, the RDDT values have been converted to EUR using the latest available exchange rates.

Returns By Period

In the year-to-date period, HPHA.DE achieves a -0.81% return, which is significantly higher than RDDT's -18.69% return.

HPHA.DE

• 1D: 0.00%
• 1M: -4.65%
• 6M: -19.61%
• YTD: -0.81%
• 1Y: -42.79%
• 3Y*: -13.03%
• 5Y*: -19.24%
• 10Y*: 3.89%
• ALL TIME*: -14.48%

RDDT

• 1D: 0.46%
• 1M: 4.25%
• 6M: -20.10%
• YTD: -18.69%
• 1Y: 24.76%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 74.87%

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

HPHA.DE vs. RDDT - Yearly Performance Comparison

	2026 (YTD)	2025	2024
HPHA.DE Heidelberg Pharma AG	-0.81%	1.64%	-18.67%
RDDT Reddit, Inc.	-18.69%	23.95%	264.82%

Correlation

The correlation between HPHA.DE and RDDT is -0.02, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.02
Correlation (All Time) Calculated using the full available price history since Mar 21, 2024	-0.00

Return for Risk

HPHA.DE vs. RDDT — Risk / Return Rank

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

HPHA.DE

HPHA.DE Risk / Return Rank: 10
HPHA.DE Sharpe Ratio Rank: 7
HPHA.DE Sortino Ratio Rank: 10
HPHA.DE Omega Ratio Rank: 9
HPHA.DE Calmar Ratio Rank: 9
HPHA.DE Martin Ratio Rank: 17

RDDT

RDDT Risk / Return Rank: 57
RDDT Sharpe Ratio Rank: 58
RDDT Sortino Ratio Rank: 59
RDDT Omega Ratio Rank: 56
RDDT Calmar Ratio Rank: 56
RDDT Martin Ratio Rank: 54

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.

HPHA.DE vs. RDDT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Heidelberg Pharma AG (HPHA.DE) and Reddit, Inc. (RDDT). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	HPHA.DE	RDDT	Difference
Sharpe ratio: Return per unit of total volatility	-0.91	0.37	-1.28
Sortino ratio: Return per unit of downside risk	-1.24	1.00	-2.24
Omega ratio: Gain probability vs. loss probability	0.83	1.12	-0.29
Calmar ratio: Return relative to maximum drawdown	-0.89	0.46	-1.35
Martin ratio: Return relative to average drawdown	-1.19	0.80	-2.00

HPHA.DE vs. RDDT - Sharpe Ratio Comparison

The current HPHA.DE Sharpe Ratio is -0.91, which is lower than the RDDT Sharpe Ratio of 0.37. The chart below compares the historical Sharpe Ratios of HPHA.DE and RDDT, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

HPHA.DE vs. RDDT - Drawdown Comparison

The maximum HPHA.DE drawdown since its inception was -97.74%, which is greater than RDDT's maximum drawdown of -63.67%. Use the drawdown chart below to compare losses from any high point for HPHA.DE and RDDT.

Drawdown Indicators

	HPHA.DE	RDDT	Difference
Max Drawdown Largest peak-to-trough decline	-97.74%	-63.67%	-34.07%
Max Drawdown (1Y) Largest decline over 1 year	-48.18%	-53.90%	+5.72%
Max Drawdown (3Y) Largest decline over 3 years	-49.27%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-69.61%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-76.10%	—	—
Current Drawdown Current decline from peak	-96.03%	-30.71%	-65.32%
Average Drawdown Average peak-to-trough decline	-84.62%	-25.75%	-58.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	35.87%	30.90%	+4.97%

Volatility

HPHA.DE vs. RDDT - Volatility Comparison

The current volatility for Heidelberg Pharma AG (HPHA.DE) is 6.57%, while Reddit, Inc. (RDDT) has a volatility of 19.71%. This indicates that HPHA.DE experiences smaller price fluctuations and is considered to be less risky than RDDT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	HPHA.DE	RDDT	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.57%	19.71%	-13.14%
Volatility (6M) Calculated over the trailing 6-month period	23.48%	48.94%	-25.46%
Volatility (1Y) Calculated over the trailing 1-year period	47.11%	67.70%	-20.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	48.87%	80.90%	-32.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	59.39%	80.90%	-21.51%

Dividends

HPHA.DE vs. RDDT - Dividend Comparison

Neither HPHA.DE nor RDDT has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

Frequently Asked Questions

Can I hold both HPHA.DE and RDDT in my portfolio?

HPHA.DE and RDDT have a correlation of -0.02, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.