SLS Stock Summary and Trading Ideas (Sellas Life Sciences Group | NASDAQ:SLS)

SELLAS Life Sciences Group Inc is a late-stage clinical biopharmaceutical company focused on the development of novel therapeutics for a broad range of cancer indications. The company's product candidates currently include galinpepimut-S, or GPS, a peptide immunotherapy directed against the Wilms tumor 1, or WT1, antigen, and GFH009, a selective small molecule cyclin-dependent kinase 9, or CDK9, inhibitor.

Sellas Life Sciences Group trades on the NASDAQ stock market under the symbol SLS.

As of September 18, 2026, SLS stock price declined to $11.24 with 1,188,068 million shares trading.

SLS has a beta of 0.01, meaning it tends to be less sensitive to market movements. SLS has a correlation of 0.00 to the broad based SPY ETF.

SLS has a market cap of $2.27 billion. This is considered a Mid Cap stock.

In the last 3 years, SLS traded as high as $15.88 and as low as $.50.

The top ETF exchange traded funds that SLS belongs to (by Net Assets): XBI, VTI, IWM, VXF, IWO.

SLS has outperformed the market in the last year with a return of +565.1%, while the SPY ETF gained +16.3%. In the last 3 month period, SLS beat the market returning +44.8%, while SPY returned +3.0%. However, in the most recent 2 weeks SLS has underperformed the stock market by returning -18.0%, while SPY returned -1.8%.

SLS support price is $10.77 and resistance is $12.29 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that SLS shares will trade within this expected range on the day.