Why is ASMB Down Today?

ASMB
$20.00
▼ -10.59% ($-2.12)
Last updated: Nov 12, 2026 8:00 PM ET

About Assembly Biosciences, Inc

Assembly Biosciences Inc is a clinical-stage biotechnology company. It is advancing two platform programs, a novel class of oral therapeutics for the treatment of hepatitis B virus (HBV) infection and novel class of oral synthetic live biotherapeutics, which are designed to restore health to a dysbi...

Sector: PHARMACEUTICAL PREPARATIONS
Market Cap: $188.81M
Forward P/E: -11.8
52-Week Range: $19.20 - $39.71
Employees: 73

Overall Confidence: 60%

60% Confident

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

SYMPATHY 60% Confidence
🎯 Outperforming sector by 10.0%
This stock is significantly underperforming its PHARMACEUTICAL PREPARATIONS sector peers, suggesting a stock-specific catalyst.

✅ Move Confirmation

LOW VOLUME 0.9x average volume

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

📍 Sector Context

PHARMACEUTICAL PREPARATIONS sector: -0.6%

ASMB is outperforming its sector by -10.0%. This suggests a stock-specific catalyst.

Market Comparison

ASMB is significantly underperforming the market (-10.4% vs SPY)
S&P 500
SPY
-0.15%
Nasdaq 100
QQQ
-0.23%
ASMB
This Stock
-10.59%
vs S&P 500: -10.44%
vs Nasdaq: -10.36%

📊 What Happens Next?

Probability Analysis

35% chance this move continues in the next 1-3 days

Expected Range

Based on historical patterns and options pricing, ASMB is expected to trade between:
$19.40 - $20.40

Key Level to Watch

$19.00 support
Watch for breakdown below $20.00

Quick Trade Ideas

Options strategies to consider for ASMB's -11% move

📊

No Options Available

ASMB doesn't have listed options or options data is currently unavailable.

Try another stock in our Options Calculator →
Disclaimer: These are educational examples only, not investment advice. Options involve significant risk including total loss of premium. Prices shown are estimates and may differ from actual market prices. Always do your own research and consider your risk tolerance.

🔔 Get ASMB Alerts

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

Last updated: Nov 12, 2026 8:00 PM (-352 minutes ago)
Data refreshes every 30 minutes during market hours

Historical Context

ASMB has moved more than 3.0% down on 49 occasions in the past year.

53.1%
Continuation Rate
26/49 times continued down
-0.03%
Avg Next Day Change
After similar down moves
Last similar move: Nov 02, 2026 (-3.1%) → Next day: +2.1%

Frequently Asked Questions

Why is ASMB stock down today?

This stock is significantly underperforming its PHARMACEUTICAL PREPARATIONS sector peers, suggesting a stock-specific catalyst.

Is ASMB stock a buy or sell right now?

Based on current analysis, ASMB shows 60% confidence in today's move. Volume is low which does not confirm the trend. View full buy/sell analysis →

What is the ASMB stock price target?

ASMB is currently trading at $20.00. Based on today's momentum, the expected short-term range is $19.40 - $20.40. See long-term price prediction →

Will ASMB stock continue falling?

Our analysis shows a 35% probability that ASMB's move continues in the next 1-3 days. Key level to watch: $19.00 (support).

Is ASMB stock oversold or overbought?

ASMB's RSI (Relative Strength Index) is currently at 47.3. This shows bearish momentum - the stock has negative momentum but isn't oversold yet.

What is the momentum for ASMB stock?

ASMB's 10-day momentum indicator is at 0.16. Positive momentum - the stock has mild upward pressure supporting the current trend.

Is ASMB outperforming or underperforming the market?

ASMB (-10.59%) is currently significantly underperforming the market (-10.4% vs SPY). Today, the S&P 500 (SPY) is down -0.15%, and Nasdaq (QQQ) is down -0.23%.

What does MACD indicate for ASMB?

ASMB's MACD (-0.51) is currently above the signal line (-0.93), indicating a bullish trend. This technical signal suggests buying pressure is dominant. The trend strength (ADX: 27.8) is strong.

Is ASMB in an uptrend or downtrend?

Based on moving average analysis, ASMB is in a mixed/transitional trend. The price and moving averages are not clearly aligned, suggesting a potential trend change or consolidation phase. 20-day SMA: $20.49, 50-day SMA: $23.57.

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