Is Merck & Co. Inc. Stock (MRK) Overbought or Oversold?
RSI analysis computed from MRK's daily closing prices · Data through October 15, 2026
As of October 15, 2026, MRK’s 14-day RSI is 50.7, inside the neutral 30–70 band — neither overbought nor oversold by the conventional thresholds.
RSI-14 Scale
MRK reads 50.7 on the 0–100 scale.
The Supporting Picture
vs 50-Day MA
+0.4%
MA: $144.78
vs 200-Day MA
+23.4%
MA: $117.76
From 52-Wk High
-7.1%
High: $156.47
Volume vs 20-Day Avg
-47%
Avg: 6.1M shares
The 50-day average is currently above the 200-day average, which technicians read as a longer-term uptrend backdrop for the RSI reading above.
What's Behind the Reading
October 15, 2026Merck's current RSI of 50.72 indicates a neutral momentum posture, with the stock trading marginally above its 50-day moving average by 0.4% and 7.14% below its 52-week high. The stock has demonstrated strong performance over the past year, surging 69.9% and outperforming both the S&P 500 and the broader healthcare sector. Recent positive price action includes a 3.73% increase on October 14, 2026, driven by optimism surrounding Keytruda sales and upcoming oncology pipeline data. Merck recently inaugurated its state-of-the-art ADVANCE Bioanalytical Facility, a $550 million R&D investment integrating robotics and AI to enhance clinical sample analysis. Additionally, the company announced positive, albeit mixed with safety concerns, results from a late-stage trial for its experimental eye treatment, remigromig.
Recent Overbought / Oversold Episodes
How MRK behaved the last few times RSI left the neutral band — including its return over the 5 trading days after each episode ended.
| Episode | Period | Next 5 Days |
|---|---|---|
| overbought | August 19, 2026 – August 26, 2026 | -1.0% |
| overbought | June 29, 2026 – June 30, 2026 | -1.9% |
| overbought | February 19, 2026 – February 24, 2026 | -3.4% |
| overbought | February 3, 2026 – February 6, 2026 | -0.4% |
Past behavior does not predict future results — small sample sizes especially.
Frequently Asked Questions
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Methodology
The verdict on this page is mechanical: we compute the 14-day Relative Strength Index with Wilder’s smoothing from MRK’s daily closing prices, and apply the conventional thresholds — above 70 is overbought, below 30 is oversold. Moving averages, the 52-week range, and volume comparisons come from the same price history.
Indicators are recomputed after every market close. The AI commentary adds context from current news via grounded search, but never changes the computed verdict. Note: closes are as-traded; a stock split would distort readings for a few weeks until the window rolls past it.
Not Financial Advice
This page is for education and information only. Indicators are mechanical calculations, AI commentary can contain errors, and nothing here is a recommendation to buy or sell any security. Do your own research and consider consulting a qualified financial advisor. See our full disclaimer.
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