Why is ACAD Down Today?

ACAD
$19.64
▼ -2.53% ($-0.50)
Last updated: Oct 01, 2026 4:35 PM ET (63 min ago)

About Acadia Pharmaceuticals Inc.

Acadia Pharmaceuticals Inc is a biopharmaceutical company focused on the development and commercialization of medicines that address unmet medical needs in central nervous system (CNS) disorders and rare diseases. It has two core franchises in neuroscience and neuro-rare diseases. The neuroscience f...

Sector: PHARMACEUTICAL PREPARATIONS
Market Cap: $3.58B
Forward P/E: 29.4
52-Week Range: $19.61 - $30.96
Employees: 654

Overall Confidence: 70%

70% Confident

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

OPTIONS 75% Confidence
🎯 Unusual PUT buying detected
Options traders are heavily buying puts on ACAD, with 71% of volume in puts. This suggests bearish institutional positioning.
SECTOR 65% Confidence
PHARMACEUTICAL PREPARATIONS sector moving together
This appears to be a sector-wide move. The PHARMACEUTICAL PREPARATIONS sector is down 1.8% on average.

✅ Move Confirmation

LOW VOLUME 0.2x average volume

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

📍 Sector Context

PHARMACEUTICAL PREPARATIONS sector: -1.8%

This appears to be a sector-wide move. Most PHARMACEUTICAL PREPARATIONS stocks are moving in the same direction.

Market Comparison

ACAD is significantly underperforming the market (-2.7% vs SPY)
S&P 500
SPY
+0.18%
Nasdaq 100
QQQ
+0.31%
ACAD
This Stock
-2.53%
vs S&P 500: -2.71%
vs Nasdaq: -2.84%

📊 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, ACAD is expected to trade between:
$19.05 - $20.03

Key Level to Watch

$18.66 support
Watch for breakdown below $19.64

🔔 Get ACAD Alerts

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

Last updated: Oct 01, 2026 4:35 PM (63 minutes ago)
Data refreshes every 30 minutes during market hours

Options Market Insight

Neutral
Options Sentiment
1.16
Put/Call Ratio
156.6%
Implied Volatility
Call Volume: 45,368
Put Volume: 52,627
Total: 97,995
Unusual Activity: $26 PUT (5,099 vol) $21 PUT (5,063 vol) $27 CALL (3,570 vol)

Historical Context

ACAD has moved more than 3.0% down on 23 occasions in the past year.

52.2%
Continuation Rate
12/23 times continued down
-0.69%
Avg Next Day Change
After similar down moves
Last similar move: Sep 25, 2026 (-6.8%) → Next day: -0.7%

Frequently Asked Questions

Why is ACAD stock down today?

Options traders are heavily buying puts on ACAD, with 71% of volume in puts. This suggests bearish institutional positioning.

Is ACAD stock a buy or sell right now?

Based on current analysis, ACAD shows 70% confidence in today's move. Volume is low which does not confirm the trend. View full buy/sell analysis →

What is the ACAD stock price target?

ACAD is currently trading at $19.64. Based on today's momentum, the expected short-term range is $19.05 - $20.03. See long-term price prediction →

Will ACAD stock continue falling?

Our analysis shows a 45% probability that ACAD's move continues in the next 1-3 days. Key level to watch: $18.66 (support).

Is ACAD stock oversold or overbought?

ACAD's RSI (Relative Strength Index) is currently at 16.2. This indicates oversold conditions - the stock may be due for a bounce as selling pressure appears exhausted.

What is the momentum for ACAD stock?

ACAD's 10-day momentum indicator is at -7.35. Strong bearish momentum - the stock is experiencing significant downward pressure. Watch for potential reversal signals.

Is ACAD outperforming or underperforming the market?

ACAD (-2.53%) is currently significantly underperforming the market (-2.7% vs SPY). Today, the S&P 500 (SPY) is up 0.18%, and Nasdaq (QQQ) is up 0.31%.

What does MACD indicate for ACAD?

ACAD's MACD (-2.08) is currently below the signal line (-1.33), indicating a bearish trend. This technical signal suggests selling pressure is dominant. The trend strength (ADX: 38.4) is strong.

Is ACAD in an uptrend or downtrend?

Based on moving average analysis, ACAD is in a bearish trend. The price ($19.64) is trading below both the 20-day SMA ($25.27) and 50-day SMA ($27.05). This alignment typically indicates sustained downward pressure.

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