Key Highlights

● Stryker fell to around $275 in after-hours trading on Thursday.

● Revenue of $6.5 billion missed the $6.62 billion consensus.

● Full-year adjusted EPS guidance of $14.80 to $14.90 fell below the $14.95 consensus.

● The company announced a $3.0 billion share buyback authorization.

Stryker (NYSE:SYK) rose during Thursday's regular session, then reversed hard in extended trading after a Revenue miss and full-year Earnings guidance that fell short of Wall Street's view.

From gain to slide

For most of Thursday, Stryker was having a good day. The medical device maker rose during the regular session as health care led the S&P 500. Then it reported. Shares tumbled in after-hours trading on October 29, falling to around $275, according to market data, after third-quarter results and guidance that disappointed investors.

As with all after-hours moves, the figures shifted through the evening and reflect thinner trading than a normal session. But the direction was clear and the decline was steep.

The miss

Revenue came in at $6.5 billion, short of the $6.62 billion analysts expected. Organic growth, which strips out acquisitions and currency effects, remained solid, but not enough to meet forecasts. Adjusted Earnings Per Share of $3.52 also missed narrowly, against a $3.55 consensus.

Chief executive Kevin Lobo did not dodge the shortfall. He said the quarter "did fall short of our expectations," while insisting that the company's fundamentals "remain strong."

The guidance problem

The bigger issue for investors was the outlook. Stryker guided full-year 2026 adjusted earnings to $14.80 to $14.90 per share, below the $14.95 consensus. For a company valued on steady, predictable growth, guidance that lands under expectations can matter more than a small miss in a single quarter.

Stryker also announced a $3.0 billion share buyback authorization. Buybacks can support a stock over time by reducing the share count, but on Thursday evening the authorization did little to offset disappointment over revenue and guidance.

Health care's bright day, and its exceptions

The after-hours slide stood in sharp contrast to the regular session. Health care was the best-performing S&P 500 sector on Thursday. Eli Lilly (NYSE:LLY) closed at a record $1,373.70 after raising its 2026 revenue guidance, Merck (NYSE:MRK) beat and raised its profit outlook, and HCA Healthcare (NYSE:HCA) rose. One report said investors rotated into health care, financials and real estate, helping limit index losses.

But investors were selective. DaVita (NYSE:DVA) tumbled after a beat because its outlook disappointed, according to another source, and Baxter (NYSE:BAX) fell in premarket trading despite a quarterly beat. In medical technology, DexCom (NASDAQ:DXCM) rose in after-hours trading after beating estimates and announcing a new $1.0 billion buyback. Stryker's report landed on the wrong side of that divide.

The wider session

The S&P 500 slipped 23.59 points to 7,720.39, weighed down by Alphabet (NASDAQ:GOOGL)'s worst day since its 2004 IPO, though more than 400 members rose. The Dow lost 132.54 points to 52,342.56, and the Nasdaq Composite fell 365.13 points to 26,184.72. The Russell 2000 gained 28.71 points to 2,859.22.

After the bell, Amazon (NASDAQ:AMZN) and Intel (NASDAQ:INTC) both slid in extended trading, sending Nasdaq-100 futures lower, while Dow futures edged up, according to market data.

What to watch

Friday's regular session will reveal whether Stryker's after-hours decline holds once full trading Volume returns. Investors will look closely at management's commentary on procedure volumes, pricing and the drivers behind the revenue shortfall.

The guidance gap is small in dollar terms, so the key question is whether it reflects caution or a genuine slowdown in Demand for orthopaedic and surgical products. Upcoming medical technology reports and industry conferences will offer further clues.

On the macro front, Friday's Employment Cost Index and the Federal Reserve's December 8–9 meeting, where futures lean toward a hike, will shape the backdrop for health care after a day when the sector was a favourite destination for rotating money.