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Daily Price Character for Merck & Co. (MRK)

Merck & Co. (MRK) historical session stats: win rate, streaks, record days, and weekday patterns.

Analysis

Market daily streak ranking →

Archetype

Steady

Median daily return

+0.000%

Daily volatility (σ)

1.616%

Win rate

48.2%

Merck & Co. (MRK) daily session stats — win rate & streak summary

History from Jan 16, 1978 through Jul 6, 2026 · 12217 trading days with returns.

Avg daily return
+0.062%
Median daily return
+0.000%
Avg green day
+1.24%
Avg red day
-1.17%
Daily volatility (σ)
1.616%
Consistency (μ/σ)
0.038
Max win streak
12 days+10.47%
Max losing streak
11 days-7.06%
Best day
+13.03%Feb 18, 2005
Worst day
-26.78%Sep 30, 2004
Extreme days (>3%)
5.8%389↑ · 325↓
This analysis is for informational purposes only and is not financial advice. Daily return metrics use dividend-adjusted prices from our data providers. Past patterns do not predict future returns. Verify before trading.

Merck & Co. (MRK) daily returns calendar heatmap

Jul 7, 2025 – Jul 6, 2026 · Mon–Fri sessions only

Merck & Co. (MRK) average return by weekday chart

Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.

Merck & Co. (MRK) win rate by weekday chart

Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.

Merck & Co. (MRK) average return by weekday table

Average dividend-adjusted return by weekday. Green/red day rule: ±0.01% vs prior close.

  • Monday+0.08%
  • Tuesday+0.08%
  • Wednesday+0.08%
  • Thursday+0.02%
  • Friday+0.05%

Merck & Co. (MRK) biggest single-day gains in history

Dividend-adjusted, ranked by return size.

  • +13.03%
  • +12.67%
  • +12.11%
  • +10.68%
  • +10.40%
  • +9.88%
  • +9.60%
  • +9.47%
  • +9.40%
  • +9.11%
  • +9.10%
  • +8.75%
  • +8.66%
  • +8.41%
  • +8.38%
  • +8.27%
  • +7.77%
  • +7.59%
  • +7.46%
  • +7.46%

Merck & Co. (MRK) biggest single-day losses in history

Dividend-adjusted, ranked by drawdown size. "Days to recovery" counts trading sessions until close reclaimed the prior peak.

  • -26.78%
  • -14.71%
  • -13.29%
  • -11.37%
  • -10.37%
  • -10.17%
  • -9.86%
  • -9.81%
  • -9.68%
  • -9.37%
  • -9.07%
  • -9.02%
  • -9.00%
  • -8.94%
  • -8.93%
  • -8.88%
  • -8.83%
  • -8.07%
  • -7.73%
  • -7.70%

Frequently asked questions

Data & methodology

Merck & Co. (MRK) Key Financials

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Operations

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