Merit Medical Systems Stock Climbs 25% On A 14-Day Winning Streak

A healthcare stock is on a remarkable run, and a look at the numbers suggests there may be more to the story than just momentum.

Merit Medical Systems (MMSI) stock has now moved higher for 14 consecutive trading days. The cumulative gain over this 14-day streak is 25%, a move that has added about $1.1 billion to the company's market value.

That run brings its total market value to about $5.4 billion. For anyone holding the stock, it represents a significant and rapid appreciation.

MMSI Versus The S&P 500, Streak And Beyond

Here is how MMSI stock stacks up against the S&P 500 over the streak and the periods around it:

Is there fundamental support for this run?

The data suggests the market may be weighing a mixed but positive picture. The stock's move is its own; while MMSI gained, the S&P 500 returned +4.6% over the same period. The company's revenue growth over the last twelve months was 10.2%, ahead of the S&P 500 median of 8.3%.

However, its operating margin of 12.7% is below the S&P 500 median of 18.4%, and it trades at a price-to-earnings multiple of 37.4, compared to the median of 23.6. For context, such streaks are not unheard of: 60 S&P 500 stocks are currently on winning streaks of 3 days or more, while 58 are on losing streaks.

So how should I think about a streak like this?

A long streak is information, not an instruction. It tells you a stock has momentum and has captured the market's attention. All streaks end, often without warning, and a chart pattern alone is never a complete thesis for buying or selling.

The disciplined move is to use the new price as a prompt to check your thinking. The numbers here offer a starting point: a business with above-median growth is now trading at an above-median valuation. The question is whether that trade-off still fits your criteria.

If you are hunting for strength that has more behind it than a hot tape, our Guidance Momentum screen surfaces the names where management raised its own outlook, which is the kind of momentum that tends to persist.

Those drawn to the strength but not the single-name risk have another route: our ETF Scorecard shows how the health care funds stack up. It is still a concentrated bet on that one theme, though, which is exactly the gap the portfolio below closes.

Momentum Is A Tailwind, Not A Plan

Riding a stock that rises every day feels effortless, and that is precisely the danger: the same momentum that built this run can reverse without notice, and one name's reversal should never be able to reset your whole year.

That is what the Trefis High Quality (HQ) Portfolio is for: about 30 quality businesses screened for the fundamentals that survive momentum's mood swings, held with rules. It has a track record of outpacing a benchmark that combines the three major indices - the S&P 500, S&P Mid-cap, and Russell 2000. Watch the runs; own the resilience.