Pfizer stock heads into the open after a 0.3% dip

At the close on September 15, 2026, Pfizer stock finished at USD 27.55 on the NYSE, down 0.3%, while the S&P 500 fell more sharply. Today, investors watch Pfizer stock with no major company events scheduled for this session.

Pfizer stock closed at USD 27.55 on the NYSE on September 15, 2026, slipping 0.3% from the prior session based on market data from major quote providers. Compared with its intraday range, the stock ended the day nearer the middle of its high and low. The broader S&P 500 index declined more than Pfizer on the same date, underscoring relatively resilient trading in the shares.

September 15, 2026 in numbers

Pfizer Inc. (ISIN US7170811035, NYSE: PFE) finished the last completed session on September 15, 2026 at USD 27.55 on the NYSE, after trading between an approximate intraday low near USD 27.25 and a high around USD 27.70 according to data cited on retail brokerage and comparison platforms. Daily volume on that date was in the tens of millions of shares, consistent with the stock’s typical liquidity profile. Over the same session, the S&P 500 index closed lower in percent terms than Pfizer, so the stock modestly outperformed the broad United States equity benchmark for the day.

Recent commentary from market-focused sites noted that Pfizer shares have been trading close to analyst-estimated intrinsic value levels near the mid-USD 20s, with one valuation tool placing a fair value estimate around USD 26.46 per share against the September 15 close of USD 27.55, indicating a small premium. As GuruFocus explained in its mid-September note, this valuation context has been framed alongside the company’s dividend profile. The stock remains within its observed 52-week trading range, and the September 15 close leaves it a modest distance below recent short-term highs reported on trading portals.

Outlook for today

For today, September 16, 2026, no new Pfizer-specific earnings release or major corporate event is scheduled in the widely followed calendars that would directly alter the near-term information flow for the company, with the next quarterly earnings date indicated for November 3, 2026 on a trading and data portal overview. As Markets Insider shows, the Q3 2026 earnings release is slated for November 3, 2026, placing today’s session in a relatively quiet phase between reporting dates. Broader market factors such as movements in the S&P 500 and sector sentiment around large pharmaceutical companies may therefore play a more prominent role in shaping Pfizer’s trading dynamics into today’s United States session.