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Annexon, Inc. (ANNX)

Healthcare | Biotechnology | Brisbane, United States | NasdaqGS
5.63 USD -0.17 (-2.931%) ⇩ (July 13, 2026, 4 p.m. EDT)
After hours: 5.63

Short-term:★★⯪☆☆Long-term:★☆☆☆☆Dividends:☆☆☆☆☆
Hot Take | July 11, 2026, 2:51 a.m. EDT

The investment case for Annexon is currently bifurcated between a desperate search for a turnaround story and a stark reality check on its financials. Fundamentally, the company is in distress: it is burning cash aggressively with negative free cash flow and operating cash flow, resulting in a negative return on equity and assets. The balance sheet is fragile, and the stock has suffered a catastrophic multi-year decline, dropping nearly 86% from its peak five years ago. While the recent price action shows a technical recovery, crossing above key moving averages, the underlying business metrics do not support a high-conviction long-term entry yet. However, the short-term outlook is becoming more interesting due to a confluence of catalysts. The stock has been added to the Russell Small Cap Comp Growth benchmark, which often triggers passive buying flows. More importantly, institutional ownership is surging, with major players like FMR LLC and Redmile Group increasing their stakes significantly. This accumulation by smart money suggests they see a thesis we are missing, likely tied to their '2026 Win Year' roadmap mentioned in recent news. Options activity confirms this tension. Traders are buying deep out-of-the-money calls, betting on a moonshot recovery, while simultaneously hedging with heavy put volume. This creates a volatile environment where a single positive catalyst could drive a sharp short-term pop, but the lack of earnings power keeps the long-term rating low. Until the company demonstrates a path to profitability or a clear inflection in revenue growth that matches the institutional interest, the risk-reward profile remains skewed against the downside.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
MSTL_74 ✓0.071388
AutoTheta0.074196
AutoARIMA0.082039
AutoETS0.082039
MSTL0.082645
MSTL_74_1260.115883
MSTL_1260.145715

Forecast horizon: 60 days | Selected: MSTL_74

Forecast Reliability
Score 37%
H-stat 0.83
Ljung-Box p 0.000
Jarque-Bera p 0.158
Excess Kurtosis -0.07
Attribute Value
Sector Healthcare
Debt to Equity Ratio 12.435
Market Cap 922,433,536
Forward P/E -6.10
Beta 1.17
Website https://www.annexonbio.com

As of July 11, 2026, 2:51 a.m. EDT: Speculators are positioning for significant volatility rather than a clear directional bet. Call volume is heavily skewed toward out-of-the-money strikes (10.0 and 9.0) for later expirations, suggesting a hope for a massive rally, while put volume concentrates around the money (6.0) and lower strikes (3.0, 5.0). The presence of 'new flow' on both sides indicates active speculation on a binary event, but the heavy implied volatility on deep OTM calls suggests the market is pricing in a potential crash or a speculative spike, with the latter being the more optimistic interpretation given the recent price recovery.


Info Dump

Attribute Value
52 Week Change 1.2222223
Address1 1,400 Sierra Point Parkway
Address2 Building C Suite 200
All Time High 38.01
All Time Low 1.285
Ask 7.06
Ask Size 2
Audit Risk 7
Average Analyst Rating 1.4 - Strong Buy
Average Daily Volume10 Day 6,215,090
Average Daily Volume3 Month 3,227,418
Average Volume 3,227,418
Average Volume10Days 6,215,090
Beta 1.165
Bid 4.17
Bid Size 2
Board Risk 9
Book Value 1.259
City Brisbane
Compensation As Of Epoch Date 1,767,139,200
Compensation Risk 8
Country United States
Crypto Tradeable 0
Currency USD
Current Price 5.63
Current Ratio 6.352
Custom Price Alert Confidence HIGH
Date Short Interest 1,782,777,600
Day High 5.84
Day Low 5.5
Debt To Equity 12.435
Display Name Annexon
Earnings Timestamp 1,778,184,000
Earnings Timestamp End 1,778,184,000
Earnings Timestamp Start 1,778,184,000
Ebitda -202,887,008
Ebitda Margins 0.0
Enterprise To Ebitda -3.563
Enterprise Value 722,842,496
Eps Current Year -0.98242
Eps Forward -0.92332
Eps Trailing Twelve Months -1.16
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 5.3878
Fifty Day Average Change 0.2421999
Fifty Day Average Change Percent 0.04495339
Fifty Two Week Change Percent 122.22223
Fifty Two Week High 7.18
Fifty Two Week High Change -1.5499997
Fifty Two Week High Change Percent -0.2158774
Fifty Two Week Low 2.03
Fifty Two Week Low Change 3.6000001
Fifty Two Week Low Change Percent 1.7733991
Fifty Two Week Range 2.03 - 7.18
Financial Currency USD
First Trade Date Milliseconds 1,595,597,400,000
Float Shares 129,360,237
Forward Eps -0.92332
Forward P E -6.0975614
Free Cashflow -107,338,376
Full Exchange Name NasdaqGS
Full Time Employees 93
Gmt Off Set Milliseconds -14,400,000
Governance Epoch Date 1,782,864,000
Gross Margins 0.0
Has Pre Post Market Data 1
Held Percent Insiders 0.00491
Held Percent Institutions 1.02752
Implied Shares Outstanding 163,842,538
Industry Biotechnology
Industry Disp Biotechnology
Industry Key biotechnology
Is Earnings Date Estimate 0
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 922,433,536
Market State PREPRE
Max Age 86,400
Message Board Id finmb_279883519
Most Recent Quarter 1,774,915,200
Net Income To Common -198,332,992
Next Fiscal Year End 1,798,675,200
Non Diluted Market Cap 949,467,507
Number Of Analyst Opinions 8
Open 5.75
Operating Cashflow -183,096,992
Operating Margins 0.0
Overall Risk 9
Payout Ratio 0.0
Phone 650 822 5500
Post Market Change 0.0
Post Market Change Percent 0.0
Post Market Price 5.63
Post Market Time 1,783,986,384
Previous Close 5.8
Price Eps Current Year -5.7307463
Price Hint 2
Price To Book 4.471803
Profit Margins 0.0
Quick Ratio 6.262
Quote Source Name Nasdaq Real Time Price
Quote Type EQUITY
Recommendation Key strong_buy
Recommendation Mean 1.4
Region US
Regular Market Change -0.17
Regular Market Change Percent -2.93104
Regular Market Day High 5.84
Regular Market Day Low 5.5
Regular Market Day Range 5.5 - 5.84
Regular Market Open 5.75
Regular Market Previous Close 5.8
Regular Market Price 5.63
Regular Market Time 1,783,972,801
Regular Market Volume 3,014,018
Return On Assets -0.45293
Return On Equity -0.8765
Sand P52 Week Change 0.20847368
Sector Healthcare
Sector Disp Healthcare
Sector Key healthcare
Share Holder Rights Risk 7
Shares Outstanding 163,842,538
Shares Percent Shares Out 0.1807
Shares Short 29,604,763
Shares Short Previous Month Date 1,780,012,800
Shares Short Prior Month 25,834,304
Short Name Annexon, Inc.
Short Percent Of Float 0.19299999
Short Ratio 7.16
Source Interval 15
State CA
Symbol ANNX
Target High Price 27.0
Target Low Price 7.0
Target Mean Price 13.125
Target Median Price 11.5
Total Cash 225,024,992
Total Cash Per Share 1.373
Total Debt 25,434,000
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Eps -1.16
Trailing Peg Ratio None
Triggerable 1
Two Hundred Day Average 4.94965
Two Hundred Day Average Change 0.6803503
Two Hundred Day Average Change Percent 0.13745423
Type Disp Equity
Volume 3,014,018
Website https://www.annexonbio.com
Zip 94,005