MKS (MKSI) — Daily Price Character
Historical session stats from dividend-adjusted prices: win rate, streaks, record days, weekday patterns, and (when available) how often the stock was green on S&P 500 green days.
MKSI
Archetype
Explosive
High daily volatility — frequent large price swings.
Win rate
50.0%
3413 green · 3302 red · 104 flat · 6819 sessions
Current streak
3 green
As of May 8, 2026
Max win / lose streak
9 / 11 days
Win streak return: +9.52% · Lose: 13.62%
Median / σ daily
+0.026% · 3.165%
Avg green +2.28% · avg red 2.15%
Extreme days (>3%)
24.0%
832 up · 806 down
History from Mar 31, 1999 through May 8, 2026 · 6819 trading days with returns.
Trailing year — daily returns (calendar)
May 12, 2025 – May 8, 2026 · Mon–Fri sessions only
Monday–Friday — average return
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Monday–Friday — win rate
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Top green days
Largest single-session gains (dividend-adjusted), by historical return.
| Date | Return |
|---|---|
| Apr 9, 2025 | +24.54% |
| May 22, 2000 | +20.79% |
| May 30, 2000 | +20.30% |
| Nov 10, 2022 | +18.32% |
| Mar 17, 2020 | +16.35% |
| Jan 3, 2001 | +16.20% |
| Oct 24, 2019 | +15.69% |
| Nov 3, 1999 | +15.57% |
| Apr 5, 2001 | +14.72% |
| Apr 18, 2000 | +14.70% |
| Apr 26, 1999 | +14.51% |
| Jun 7, 2000 | +14.40% |
| Sep 7, 2000 | +14.39% |
| Apr 22, 2010 | +14.12% |
| Mar 24, 2020 | +14.10% |
| Oct 11, 2001 | +13.82% |
| Apr 6, 2020 | +13.77% |
| Sep 8, 1999 | +13.71% |
| Aug 18, 2000 | +13.63% |
| Apr 18, 2001 | +13.62% |
Worst red days
Largest single-session losses; "Days to recovery" counts trading sessions until close recovered the prior peak (dividend-adjusted).
| Date | Return | Days to recovery |
|---|---|---|
| Jul 21, 2004 | 23.30% | 85 |
| Mar 16, 2020 | 22.12% | 23 |
| Apr 3, 2025 | 20.93% | 26 |
| Aug 3, 2000 | 18.93% | 11 |
| Oct 16, 2002 | 18.57% | 7 |
| May 23, 2000 | 16.14% | 4030 |
| Oct 2, 2000 | 16.00% | 146 |
| Jun 19, 2002 | 15.52% | 269 |
| Sep 6, 2000 | 15.42% | 400 |
| Apr 11, 2000 | 14.97% | 4088 |
| Jul 24, 2008 | 14.25% | 440 |
| Nov 3, 2022 | 13.49% | 6 |
| Jul 5, 2000 | 13.45% | 3603 |
| Apr 28, 1999 | 13.21% | 30 |
| Mar 18, 2020 | 12.57% | 4 |
| Dec 9, 2002 | 12.40% | 10 |
| Apr 10, 2025 | 12.25% | 9 |
| Jun 6, 2000 | 10.89% | 1 |
| Dec 4, 2002 | 10.85% | 21 |
| Jan 24, 2000 | 10.69% | 11 |
Frequently asked questions
What is the daily win rate for MKS (MKSI)?
Historically, MKS (MKSI) closed green on 50.0% of trading days (3413 green, 3302 red, 104 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for MKS (MKSI)?
As of 2026-05-08, MKS (MKSI) is on a 3-day winning streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for MKS (MKSI)?
We label MKS (MKSI) as "explosive" based on the sample standard deviation of daily returns: High daily volatility — frequent large price swings.
What were the best and worst single trading days for MKS (MKSI)?
Largest single-day gain: +24.54%. Largest single-day loss: 23.30%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for MKS (MKSI)?
We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 24.0% of trading days for MKS (MKSI) were extreme (832 up, 806 down).
Data & methodology
How are green, red, and flat days defined?
We use dividend-adjusted (or close-to-close for non-equity) daily returns. Green: return ≥ +0.01%. Red: return ≤ −0.01%. Flat: between those bounds.
How is the current streak calculated?
We count consecutive green or consecutive red days using the same thresholds. If the most recent session is flat, we skip trailing flat days and measure from the last non-flat close.
What does “vs S&P 500” mean?
On sessions where the S&P 500 (^GSPC) was green, we report how often this stock was also green. Shown only for USD equities when benchmark data exists and the symbol is not the index itself.
Where does the archetype come from?
Sample standard deviation of daily returns: low → Steady, high → Explosive, otherwise Balanced. Labels describe typical daily volatility, not quality of the investment.
Explore more
MKSI Overview
Company profile, financial tools, and key metrics
MKSI What If Invested
What if you had invested $1,000? See historical returns from any date.
MKSI How It Makes Money
Discover visual breakdown — where revenue comes from and where it goes.
MKSI Stock Seasonality
Best and worst months to invest. Historical monthly returns heatmap.
MKSI Price Target Scenarios
Model bear, base, and bull cases with EPS growth and exit P/E — pre-filled from analysts and history.
MKSI Buybacks
Recent repurchase activity. Shareholder yield & SBC comparison.
MKSI Dividend Profile
Yield: 0.55%. Safety: 5/8. See full history.
MKSI Dividend Calculator
How much dividend income would $1,000 have earned? Calculate from any date.
MKSI Dividend Forecast
Project future income with DRIP, growth assumptions, and optional monthly contributions.
MKSI Dividend Capture
Historical pre-ex touch stats, gap distribution, after-tax calculator, and a backtest simulator (limit-order vs MOC exit).
MKSI Financials
Revenue, EPS, EBITDA, market cap, debt and balance sheet history with annual and quarterly data.