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Annexon, Inc. (ANNX)

Healthcare | Biotechnology | Brisbane, United States | NasdaqGS
6.54 USD +0.21 (3.318%) ⇧ (April 17, 2026, 4 p.m. EDT)
After hours: 6.58 +0.04 (0.612%) ⇧ (April 17, 2026, 7:26 p.m. EDT)

Short-term: ★★★★☆ | Long-term: ★★★☆☆ | Dividends: ☆☆☆☆☆
Hot Take | April 18, 2026, 11:34 p.m. EDT

Despite negative earnings and high valuation multiples (P/B 4.6x), insider buying and aggressive call flow point to a near-term catalyst, likely a clinical trial readout or near-term upside play targeting the $7-$10 range, making this a momentum buy rather than a value investment.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoTheta ✓0.157529
AutoARIMA0.160839
AutoETS0.160841
MSTL0.242935

Forecast horizon: 45 days | Selected: AutoTheta

Forecast Reliability
Score 80%
H-stat 0.72
Ljung-Box p 0.000
Jarque-Bera p 0.416
Excess Kurtosis -0.85
Attribute Value
Sector Healthcare
Debt to Equity Ratio 12.38
Market Cap 1,049,502,144
Forward P/E -6.84
Beta 1.15
Website https://www.annexonbio.com

As of April 18, 2026, 11:34 p.m. EDT: Near-term expirations (Apr 17) show strong call activity at higher strikes, particularly aggressive positioning at the 10.0 strike with 21 Open Interest despite being deeply out-of-the-money relative to the 6.54 price. This contrasts with put activity which is concentrated at lower strikes (3.0-4.0) in mid-term expirations, suggesting a 'long gamma' position for a rise in the 2-month window, but potential hedging coming in 6 months. The 12-month data shows significant out-of-the-money put Open Interest at deep strikes (1.5, 12.0), indicating some flight-to-safety or downside targeting further out, but the immediate flow is overwhelmingly bullish on calls.


Info Dump

Attribute Value
52 Week Change 2.892857
Address1 1,400 Sierra Point Parkway
Address2 Building C Suite 200
All Time High 38.01
All Time Low 1.285
Ask 8.15
Ask Size 2
Audit Risk 6
Average Analyst Rating 1.2 - Strong Buy
Average Daily Volume10 Day 2,489,320
Average Daily Volume3 Month 2,634,188
Average Volume 2,634,188
Average Volume10Days 2,489,320
Beta 1.148
Bid 6.5
Bid Size 9
Board Risk 7
Book Value 1.417
City Brisbane
Compensation As Of Epoch Date 1,735,603,200
Compensation Risk 8
Country United States
Crypto Tradeable 0
Currency USD
Current Price 6.54
Current Ratio 5.681
Custom Price Alert Confidence HIGH
Date Short Interest 1,774,915,200
Day High 6.615
Day Low 6.35
Debt To Equity 12.38
Display Name Annexon
Earnings Timestamp 1,774,900,800
Earnings Timestamp End 1,778,529,600
Earnings Timestamp Start 1,778,529,600
Ebitda -214,240,992
Ebitda Margins 0.0
Enterprise To Ebitda -3.908
Enterprise Value 837,358,144
Eps Current Year -1.16299
Eps Forward -0.95644
Eps Trailing Twelve Months -1.34
Esg Populated 0
Exchange NMS
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fax 650 636 9773
Fifty Day Average 5.5045
Fifty Day Average Change 1.0355
Fifty Day Average Change Percent 0.18811883
Fifty Two Week Change Percent 289.2857
Fifty Two Week High 7.18
Fifty Two Week High Change -0.63999987
Fifty Two Week High Change Percent -0.089136474
Fifty Two Week Low 1.4
Fifty Two Week Low Change 5.14
Fifty Two Week Low Change Percent 3.6714284
Fifty Two Week Range 1.4 - 7.18
Financial Currency USD
First Trade Date Milliseconds 1,595,597,400,000
Float Shares 130,715,973
Forward Eps -0.95644
Forward P E -6.8378572
Free Cashflow -104,476,376
Full Exchange Name NasdaqGS
Full Time Employees 96
Gmt Off Set Milliseconds -14,400,000
Governance Epoch Date 1,775,001,600
Gross Margins 0.0
Has Pre Post Market Data 1
Held Percent Insiders 0.00402
Held Percent Institutions 0.92437
Implied Shares Outstanding 160,474,333
Industry Biotechnology
Industry Disp Biotechnology
Industry Key biotechnology
Is Earnings Date Estimate 1
Language en-US
Last Fiscal Year End 1,767,139,200
Long Business Summary Annexon, Inc., a clinical-stage biopharmaceutical company, discovers and develops medicines for treating inflammatory-related diseases. The company provides Tanruprubart, an investigational full-length monoclonal antibody, which is in Phase 3 clinical trial for the treatment of patients with guillain-barré syndrome; completed Phase II clinical trial for treating Huntington's disease; and in Phase 2a clinical trial for the treatment of amyotrophic lateral sclerosis. It is also developing ANX007, an antigen-binding fragment (Fab) that is in Phase 3 program for the treatment of patients with geographic atrophy; and ANX1502, a novel oral small molecule inhibitor, which is in Phase 1 clinical trials for autoimmune indications. In addition, it develops ANX009, a C1q-blocking Fab that is in Phase I clinical trial for treating patients with lupus nephritis. The company was incorporated in 2011 and is headquartered in Brisbane, California.
Long Name Annexon, Inc.
Market us_market
Market Cap 1,049,502,144
Market State PREPRE
Max Age 86,400
Message Board Id finmb_279883519
Most Recent Quarter 1,767,139,200
Net Income To Common -208,547,008
Next Fiscal Year End 1,798,675,200
Non Diluted Market Cap 1,049,502,137
Number Of Analyst Opinions 7
Open 6.41
Operating Cashflow -186,356,000
Operating Margins 0.0
Overall Risk 7
Payout Ratio 0.0
Phone 650 822 5500
Post Market Change 0.03999996
Post Market Change Percent 0.6116202
Post Market Price 6.58
Post Market Time 1,776,468,409
Previous Close 6.33
Price Eps Current Year -5.6234365
Price Hint 2
Price To Book 4.6153846
Profit Margins 0.0
Quick Ratio 5.591
Quote Source Name Nasdaq Real Time Price
Quote Type EQUITY
Recommendation Key strong_buy
Recommendation Mean 1.22222
Region US
Regular Market Change 0.21
Regular Market Change Percent 3.31754
Regular Market Day High 6.615
Regular Market Day Low 6.35
Regular Market Day Range 6.35 - 6.615
Regular Market Open 6.41
Regular Market Previous Close 6.33
Regular Market Price 6.54
Regular Market Time 1,776,456,001
Regular Market Volume 3,001,015
Return On Assets -0.43098998
Return On Equity -0.81897
Sand P52 Week Change 0.38150132
Sector Healthcare
Sector Disp Healthcare
Sector Key healthcare
Share Holder Rights Risk 7
Shares Outstanding 160,474,333
Shares Percent Shares Out 0.1161
Shares Short 18,637,378
Shares Short Previous Month Date 1,772,150,400
Shares Short Prior Month 15,901,379
Short Name Annexon, Inc.
Short Percent Of Float 0.1345
Short Ratio 6.15
Source Interval 15
State CA
Symbol ANNX
Target High Price 27.0
Target Low Price 8.0
Target Mean Price 13.71429
Target Median Price 11.0
Total Cash 238,344,992
Total Cash Per Share 1.485
Total Debt 26,201,000
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Eps -1.34
Trailing Peg Ratio None
Triggerable 1
Two Hundred Day Average 4.0799
Two Hundred Day Average Change 2.4601002
Two Hundred Day Average Change Percent 0.60298055
Type Disp Equity
Volume 3,001,015
Website https://www.annexonbio.com
Zip 94,005