GRMN technical analysis
GRMN Technical Analysis
Analysis date
August 4, 2026
Market
NYSE (USD)
Daily cutoff
August 3, 2026
Reliability
Passed
Informational use only. This page is not investment advice.
Data verification
GRMN Data Verification
Checking the latest completed daily bar for date and closing-price consistency before indicators are calculated.
- Symbol
- GRMN
- Market
- NYSE
- Currency
- USD (US Dollar)
- Latest completed bar
- August 3, 2026
Historical prices are adjusted for corporate actions when applicable. Date and closing-price consistency checks passed for the latest completed daily bar.
| Validation series | Latest Close | Date | Difference | Status |
|---|---|---|---|---|
| Calculation series | 304.76 | August 3, 2026 | - | Verified |
| Verification series | 304.76 | August 3, 2026 | 0.00% | Verified |
Bottom line
GRMN Technical Analysis Summary
GRMN shows a strongly bullish technical picture after a sharp breakout. Price trades well above SMA20, SMA50, and SMA200 on both daily and weekly timeframes, with the SMA200 sloping up to confirm the long-term uptrend. The stock gained about 21% in the latest week and sits at 99.8% of its 52-week range, just below the 52-week high of 305.00. Daily RSI at 79.88 and weekly RSI at 70.81 are overbought, and price closed above the upper Bollinger Band, signaling an overextended short-term move even as the trend stays up. MACD is positive and rising on both timeframes. Weekly volume was about 2.2x the 20-week average, confirming strong participation. Key support is at the 20-day low of 235.76 and the 60-day low of 223.55. Resistance is at the 52-week high of 305.00.
Multi-timeframe dashboard
Multi-Timeframe Technical Dashboard
Comparing daily (2-year) and weekly (5-year) perspectives to identify aligned or conflicting signals.
Daily (August 3, 2026)
- Trend
- Bullish. Price at 304.76 is above SMA20 (254.96), SMA50 (243.99), and SMA200 (228.18). The moving averages are stacked in bullish alignment with SMA20 above SMA50 above SMA200, and the SMA200 is sloping upward, confirming the long-term uptrend.
- Momentum
- Overbought-Bullish. RSI14 at 79.88 is in overbought territory after the sharp recent advance. Daily MACD line at 13.48 is above the signal line at 6.81 with a positive and rising histogram of 6.67, confirming strong bullish momentum. An overbought reading does not guarantee an immediate pullback but reduces the margin for further upside before consolidation.
- Volatility
- Elevated. ATR14 at 10.24 (3.36% of price) reflects an average daily range of about 3.4%. Bollinger Bands (211.35 to 298.58) show price closing above the upper band at 298.58, indicating an unusually strong move.
- Volume
- Slightly below average. Latest volume of 905,900 is 86.9% of the 20-period average (1,042,200), suggesting the breakout session lacked heavy confirmation volume.
Assessment
The daily chart is strongly bullish but overextended short-term. Price holds above all key SMAs with full bullish alignment, MACD is strongly positive, and the stock sits at 99.8% of its 52-week range near the 305.00 high. However, RSI near 80 and a close above the upper Bollinger Band signal a stretched move, and volume was slightly below average. A pullback toward the upper band at 298.58 or the SMA20 at 254.96 would be a healthier consolidation. A sustained break above the 52-week high at 305.00 would extend the uptrend.
Weekly (July 27, 2026 week)
- Trend
- Bullish. Price at 293.78 is above SMA20 (243.19), SMA50 (229.42), and SMA200 (164.22). The SMA200 is sloping strongly upward, confirming a mature long-term uptrend, and the shorter averages are rising as well.
- Momentum
- Bullish but overbought. RSI14 at 70.81 is above the overbought threshold. Weekly MACD line at 8.62 is above the signal line at 5.65 with a positive and rising histogram of 2.96, confirming resurgent momentum after the earlier consolidation.
- Volatility
- Moderate to elevated. ATR14 at 17.66 (6.01% of price) reflects an average weekly range of about 6%.
- Volume
- Well above average. Latest weekly volume of 8,922,400 is 216.5% of the 20-week average (4,121,150), confirming strong participation behind the advance.
Assessment
The weekly chart confirms a strong long-term uptrend. Price is above all key SMAs, the SMA200 is rising steadily, MACD is positive and rising, and the stock sits at 91.5% of its 52-week range. The roughly 21% one-week gain was the largest in the 5-year window and pushed RSI into overbought territory, so some consolidation is likely before the trend extends. Overall the weekly structure remains firmly bullish.
Key indicators
GRMN Key Technical Indicators
RSI, MACD, moving averages, ATR, and Bollinger Bands across daily and weekly timeframes.
| Indicator | Daily | Weekly |
|---|---|---|
| RSI (14) | 79.88 | 70.81 |
| MACD (12, 26, 9) | 13.48 / 6.81 / 6.67 | 8.62 / 5.65 / 2.96 |
| ATR (14) | 10.24 (3.36%) | 17.66 (6.01%) |
| Bollinger Bands (20, 2) | 211.35 - 298.58 | 212.60 - 273.78 |
| SMA (20) | 254.96 | 243.19 |
| SMA (50) | 243.99 | 229.42 |
| SMA (200) | 228.18 | 164.22 |
Price structure
GRMN Price Structure and Returns
Price performance across multiple lookback periods and 52-week position.
| Metric | Daily | Weekly |
|---|---|---|
| Current Price | 304.76 | 293.78 |
| 1-Period Return | +3.74% | +20.88% |
| 5-Period Return | +25.69% | +26.35% |
| 20-Period Return | +24.28% | +26.36% |
| 60-Period Return | +26.06% | +44.58% |
| 252-Period Return | +41.60% | +110.00% |
| 52-Week Low | 184.35 | 184.35 |
| 52-Week High | 305.00 | 304.00 |
| 52-Week Position | 99.80% | 91.46% |
Key levels
GRMN Support and Resistance Levels
Key price levels based on recent swing highs and lows across daily and weekly timeframes.
| Level | Daily | Weekly |
|---|---|---|
| 20-Period High | 305.00 | 304.00 |
| 20-Period Low | 235.76 | 223.55 |
| 60-Period High | 305.00 | 304.00 |
| 60-Period Low | 223.55 | 184.35 |
Scenarios
GRMN Technical Scenarios
Conditions, invalidation triggers, and what to watch for each scenario.
Bullish
Trigger
Price breaks and holds above the 52-week high at 305.00 with above-average volume.
Invalidation
Price falls below the 20-day low of 235.76.
What to watch
Daily RSI holding near or above 70 on sustained volume; MACD histogram remaining positive.
Range-Bound
Trigger
Price consolidates between the 20-day low at 235.76 and the 52-week high at 305.00 after the sharp move.
Invalidation
A decisive break of either boundary with increasing volume.
What to watch
RSI retreating from overbought into the 50 to 70 zone; volume normalizing toward the 20-period average; MACD histogram flattening.
Bearish
Trigger
Price breaks below the 20-day low at 235.76 and then the 60-day low at 223.55.
Invalidation
Price reclaims the SMA20 (254.96) and holds above it.
What to watch
Sustained closes below SMA20 (254.96); MACD histogram turning negative; increasing downside volume.
Methodology
Methodology and Limitations
This technical analysis is calculated locally from adjusted OHLCV history. The daily series ends August 3, 2026, and the weekly series ends July 27, 2026 week. The latest completed daily bar is independently checked for date and closing-price consistency. Historical prices are adjusted for corporate actions when applicable. Indicators include Wilder RSI(14), MACD(12,26,9), SMA20/50/200, Wilder ATR(14), Bollinger Bands(20,2), relative volume, multi-period returns, and price-range levels. Support and resistance are descriptive zones, not guaranteed reversal points. Historical patterns do not predict future prices, and this page is not investment advice.
Frequently Asked Questions
This technical analysis is for informational and educational purposes only. It does not constitute investment advice, a recommendation, or a solicitation to buy or sell any security. Past performance and historical patterns are not guarantees of future results. All investments carry risk, including the potential loss of principal. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Market data is checked for date and closing-price consistency before indicators are calculated. Data cutoffs: daily August 3, 2026, weekly July 27, 2026 week. Generated August 4, 2026.
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