Medical device company Tandem Diabetes Care (Nasdaq: TNDM) had an incredible run for the first eight and a half months of 2018. The stock jumped from $2.36 at the start of the year to a high of $52.55 in September. That is a gain of over 2,100%.
After hitting that all-time high in September, the stock has retreated slightly and it dipped down to a low of $26.40 in November. After dropping down to the November low, the stock has made several attempts to move back up, but it seems to be hitting resistance in the $38 area. The stock has moved above that price, but it hasn’t been able to close a day above it on three different attempts.
You can see on the chart the three attempts in just over a month and now the stock is overbought based on the daily stochastic readings. The stochastic readings also just made a bearish crossover on Wednesday.
Something that could be holding the stock back at this point is its fundamental indicators. The company has yet to turn a profit and it is currently operating at a profit margin of -67.9%.
Biotech and pharma companies are different in how they are valued by investors, but at some point the company has to start making money in order to justify the stock price. I’m not sure what that point is, but it seems like investors may have gotten ahead of themselves with Tandem when they ran it up so high last year.
TNDM's Aroon Indicator triggered a bullish signal on October 30, 2025. Tickeron's A.I.dvisor detected that the AroonUp green line is above 70 while the AroonDown red line is below 30. When the up indicator moves above 70 and the down indicator remains below 30, it is a sign that the stock could be setting up for a bullish move. Traders may want to buy the stock or look to buy calls options. A.I.dvisor looked at 192 similar instances where the Aroon Indicator showed a similar pattern. In of the 192 cases, the stock moved higher in the days that followed. This puts the odds of a move higher at .
The Momentum Indicator moved above the 0 level on November 07, 2025. You may want to consider a long position or call options on TNDM as a result. In of 78 past instances where the momentum indicator moved above 0, the stock continued to climb. The odds of a continued upward trend are .
The Moving Average Convergence Divergence (MACD) for TNDM just turned positive on November 10, 2025. Looking at past instances where TNDM's MACD turned positive, the stock continued to rise in of 47 cases over the following month. The odds of a continued upward trend are .
TNDM moved above its 50-day moving average on November 07, 2025 date and that indicates a change from a downward trend to an upward trend.
Following a +1 3-day Advance, the price is estimated to grow further. Considering data from situations where TNDM advanced for three days, in of 272 cases, the price rose further within the following month. The odds of a continued upward trend are .
The RSI Indicator has been in the overbought zone for 1 day. Expect a price pull-back in the near future.
The Stochastic Oscillator demonstrated that the ticker has stayed in the overbought zone for 8 days. The longer the ticker stays in the overbought zone, the sooner a price pull-back is expected.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where TNDM declined for three days, the price rose further in of 62 cases within the following month. The odds of a continued downward trend are .
TNDM broke above its upper Bollinger Band on November 11, 2025. This could be a sign that the stock is set to drop as the stock moves back below the upper band and toward the middle band. You may want to consider selling the stock or exploring put options.
The Tickeron Price Growth Rating for this company is (best 1 - 100 worst), indicating steady price growth. TNDM’s price grows at a higher rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Seasonality Score of (best 1 - 100 worst) indicates that the company is significantly overvalued in the industry. The Tickeron Seasonality score describes the variance of predictable price changes around the same period every calendar year. These changes can be tied to a specific month, quarter, holiday or vacation period, as well as a meteorological or growing season.
The Tickeron PE Growth Rating for this company is (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron SMR rating for this company is (best 1 - 100 worst), indicating weak sales and an unprofitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Valuation Rating of (best 1 - 100 worst) indicates that the company is significantly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (10.846) is normal, around the industry mean (62.988). P/E Ratio (0.000) is within average values for comparable stocks, (36.230). TNDM's Projected Growth (PEG Ratio) (0.000) is slightly lower than the industry average of (1.720). TNDM has a moderately low Dividend Yield (0.000) as compared to the industry average of (0.019). P/S Ratio (1.411) is also within normal values, averaging (84.366).
The Tickeron Profit vs. Risk Rating rating for this company is (best 1 - 100 worst), indicating that the returns do not compensate for the risks. TNDM’s unstable profits reported over time resulted in significant Drawdowns within these last five years. A stable profit reduces stock drawdown and volatility. The average Profit vs. Risk Rating rating for the industry is 93, placing this stock worse than average.
The average fundamental analysis ratings, where 1 is best and 100 is worst, are as follows
a developer and manufacturer of medical devices for the treatment of diabetes
Industry MedicalNursingServices