Why is SIBN Down Today?

SIBN
$18.00
▼ -2.23% ($-0.40)
Last updated: Oct 02, 2026 8:38 PM ET (1083 min ago)

About SI-BONE, Inc. Common Stock

SI-BONE Inc is a medical device company, that develops and commercializes a proprietary minimally invasive surgical implant system in the United States and Internationally. Its products include a series of patented titanium implants and the instruments used to implant them, as well as implantable bo...

Sector: SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
Market Cap: $615.62M
Forward P/E: -37.3
52-Week Range: $11.48 - $21.89
Employees: 349

Overall Confidence: 50%

50% Confident

Based on news, social sentiment, options activity, and sector analysis

MOMENTUM 50% Confidence
🎯 SIBN showing strong bearish momentum
SIBN is down 2.2% today on 0.6x average volume. The move appears to be driven by general market sentiment and momentum traders.

✅ Move Confirmation

LOW VOLUME 0.6x average volume

UNCONFIRMED - Low volume suggests this move may not be sustainable.

📍 Sector Context

SURGICAL & MEDICAL INSTRUMENTS & APPARATUS sector: -0.4%

SIBN is outperforming its sector by -1.8%. This suggests a stock-specific catalyst.

Market Comparison

SIBN is significantly underperforming the market (-3.0% vs SPY)
S&P 500
SPY
+0.74%
Nasdaq 100
QQQ
+1.02%
SIBN
This Stock
-2.23%
vs S&P 500: -2.97%
vs Nasdaq: -3.25%

📊 What Happens Next?

Probability Analysis

45% chance this move continues in the next 1-3 days

Expected Range

Based on historical patterns and options pricing, SIBN is expected to trade between:
$17.46 - $18.36

Key Level to Watch

$17.10 support
Watch for breakdown below $18.00

🔔 Get SIBN Alerts

We'll notify you when SIBN's trend changes or a new signal fires.

Last updated: Oct 02, 2026 8:38 PM (1083 minutes ago)
Data refreshes every 30 minutes during market hours

Options Market Insight

Bullish
Options Sentiment
0.53
Put/Call Ratio
105.8%
Implied Volatility
Call Volume: 11,350
Put Volume: 6,032
Total: 17,382
Unusual Activity: $10 PUT (1,900 vol) $10 PUT (1,900 vol)

Historical Context

SIBN has moved more than 3.0% down on 22 occasions in the past year.

40.9%
Continuation Rate
9/22 times continued down
+1.43%
Avg Next Day Change
After similar down moves
Last similar move: Jul 14, 2026 (-5.3%) → Next day: +2.0%

Frequently Asked Questions

Why is SIBN stock down today?

SIBN is down 2.2% today on 0.6x average volume. The move appears to be driven by general market sentiment and momentum traders.

Is SIBN stock a buy or sell right now?

Based on current analysis, SIBN shows 50% confidence in today's move. Volume is low which does not confirm the trend. View full buy/sell analysis →

What is the SIBN stock price target?

SIBN is currently trading at $18.00. Based on today's momentum, the expected short-term range is $17.46 - $18.36. See long-term price prediction →

Will SIBN stock continue falling?

Our analysis shows a 45% probability that SIBN's move continues in the next 1-3 days. Key level to watch: $17.10 (support).

Is SIBN stock oversold or overbought?

SIBN's RSI (Relative Strength Index) is currently at 42.4. This shows bearish momentum - the stock has negative momentum but isn't oversold yet.

What is the momentum for SIBN stock?

SIBN's 10-day momentum indicator is at -0.01. Negative momentum - the stock has mild downward pressure which may continue short-term.

Is SIBN outperforming or underperforming the market?

SIBN (-2.23%) is currently significantly underperforming the market (-3.0% vs SPY). Today, the S&P 500 (SPY) is up 0.74%, and Nasdaq (QQQ) is up 1.02%.

What does MACD indicate for SIBN?

SIBN's MACD (-0.03) is currently below the signal line (-0.0), indicating a bearish trend. This technical signal suggests selling pressure is dominant. The trend strength (ADX: 15.7) is weak.

Is SIBN in an uptrend or downtrend?

Based on moving average analysis, SIBN is in a bearish trend. The price ($18.00) is trading below both the 20-day SMA ($18.52) and 50-day SMA ($18.64). This alignment typically indicates sustained downward pressure.

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