Tandem Diabetes Care, Inc. (TNDM) Stock Chart
TNDM price chart
Daily prices adjusted for splits and dividends. 1D and 5D show delayed intraday prices. Markers: E earnings, D dividend, S split.
Technical snapshot
Key levels & statistics
TNDM performance vs the market
Total return, dividends reinvestedTNDM monthly returns
TNDM historical prices
TNDM dividends & splits
About the TNDM chart
Tandem Diabetes Care (TNDM) closed at $16.24 on October 16, 2026, down 26.1% so far this year. The stock is trading 15.1% below its 200-day moving average of $19.13, which technical analysts usually read as a long-term downtrend. Over the past year TNDM returned +6.2% including dividends, behind the S&P 500 (+16.8%).
This page charts the full trading history of Tandem Diabetes Care, Inc. stock. Daily prices come from EODHD and are adjusted for stock splits and dividends, so returns over long periods are comparable. For the latest quote, company profile, earnings and news, see the TNDM stock overview.
TNDM chart FAQ
What is Tandem Diabetes Care's all-time high stock price?
The highest closing price for TNDM was $299.80 on January 10, 2014 (adjusted for stock splits). As of the October 16, 2026 close it traded 94.6% below that level.
What is the 52-week range of TNDM stock?
Over the 52 weeks to October 16, 2026, TNDM traded between an intraday low of $12.26 on May 15, 2026 and an intraday high of $29.65 on February 24, 2026.
Is TNDM above its 200-day moving average?
No. On October 16, 2026 TNDM closed at $16.24, 15.1% below its 200-day simple moving average of $19.13. The 50-day average was $19.01.
How has TNDM stock performed compared with the S&P 500?
Including reinvested dividends, TNDM returned +6.2% over the past year, compared with +16.8% for the S&P 500 (SPY). Over five years the figures were −87.0% and +83.0%.
Does Tandem Diabetes Care pay a dividend?
Tandem Diabetes Care has not paid a dividend in the past 12 months.
Has TNDM stock ever split?
TNDM has split its stock 1 time: 1:10 (October 10, 2017). Prices on this chart are adjusted for all splits.
How do I read the TNDM chart?
Pick a time range above the chart and choose candlesticks, a line or an area chart. Moving averages, Bollinger Bands, volume, RSI and MACD can be switched on with the indicator buttons, and "Compare" plots TNDM against the S&P 500, its sector or a competitor as a percentage change. Chart prices are adjusted for splits and dividends.