SI Stock Summary and Trading Ideas (Shoulder Innovations | NYSE:SI)

Shoulder Innovations Inc is a commercial-stage medical technology company exclusively focused on transforming the shoulder surgical care market. It currently offers advanced implant systems for shoulder arthroplasty. Its products include: InSet Total Shoulder Arthroplasty; InSet Reverse Shoulder Arthroplasty; ProVoyance Shoulder Planning Software; and InSet Tray System. Geographically, the company operates in United States and are planning to expand.

Shoulder Innovations trades on the NYSE stock market under the symbol SI.

As of September 11, 2026, SI stock price climbed to $19.28 with 11,665 million shares trading.

SI has a beta of -0.33, meaning it tends to be less sensitive to market movements. SI has a correlation of 0.00 to the broad based SPY ETF.

SI has a market cap of $399.63 million. This is considered a Small Cap stock.

Last quarter Shoulder Innovations reported $17 million in Revenue and -$.49 earnings per share. This beat revenue expectation by $325,000 and missed earnings estimates by -$.03.

The top ETF exchange traded funds that SI belongs to (by Net Assets): VTI, VXF, VTWO, VTWV, AVSC.

SI has outperformed the market in the last year with a return of +51.3%, while the SPY ETF gained +18.5%. In the last 3 month period, SI beat the market returning +7.8%, while SPY returned +5.7%. However, in the most recent 2 weeks SI has underperformed the stock market by returning -9.4%, while SPY returned -0.8%.

SI support price is $18.20 and resistance is $20.02 (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 SI shares will trade within this expected range on the day.