SELLAS Life Sciences Group, Inc. (SLS) delivered a return of 412.74% over the past year. Since SLS does not currently pay dividends, the total return equals the price-only return.

A $10,000 investment in SELLAS Life Sciences Group, Inc. one year ago would be worth $51,274 today, representing a gain of $41,274.

SELLAS Life Sciences Group, Inc. (SLS) does not currently pay dividends. Many growth-focused companies reinvest profits back into the business rather than distributing them as dividends. For SLS, the total return equals the price-only return.

Yes, SELLAS Life Sciences Group, Inc. (SLS) outperformed the S&P 500 by 387.75 percentage points over the past year. SLS delivered a total return of 412.74%, compared to the S&P 500's 24.99%. This 387.75pp alpha means investors in SLS earned more than a passive S&P 500 index fund.

SELLAS Life Sciences Group, Inc. (SLS) experienced a maximum drawdown of -36.53% over the past year, declining from its peak on 2025-06-30 to its trough on 2025-12-02. The stock recovered to its prior peak by 2025-12-18. Maximum drawdown measures the worst peak-to-trough decline and is an important risk metric for investors.

Here are SELLAS Life Sciences Group, Inc. (SLS)'s long-term returns with dividends reinvested. Over 10 years, the total return is -100.0% (-59.5% CAGR) — $10,000 would have grown to $1. Over 20 years: -100.0% total return (-41.0% CAGR) — $10,000 → $0. Over 30 years: -100.0% total return (-29.7% CAGR) — $10,000 → $0. Long-term investors benefit from compounding: dividends buy additional shares, which generate their own dividends, creating an exponential growth effect.

SELLAS Life Sciences Group, Inc.'s best calendar year was 2025 with a total return of 252.3%. Its worst year was 2019 with a total return of -93.9%. This range shows the volatility investors should expect — the difference between the best and worst year is 346.2 percentage points.