Onconetix (ONCO) Stock: Why It's Down Today
Updated Oct 19, 2026, 12:35 PM ET · intraday price
- Trading at $0.45 as of 12:35 PM ET, -5.09% vs the prior close of $0.48.
- Volume 152.51K shares, 0.0x its 50-day average (light).
- New SEC filings: ARS (Oct 16, 2026).
- No new insider buys or sales reported since the prior session.
ONCO slides 5.1% to $0.45, a 52-week low, 7 down days in a row. Trading at $0.45 (intraday, 12:35 PM ET), -5.09% vs the prior close of $0.48. Day range $0.45–$0.50, opened at $0.48.
ONCO daily analysis — what happened
A plain-English, data-only note for every US trading day (today's note updates every 2 hours while the market is open). Newest first; older days stay archived below.
Oct 19, 2026 — ONCO slides 5.1% to $0.45, a 52-week low, 7 down days in a row
- Trading at $0.45 (intraday, 12:35 PM ET), -5.09% vs the prior close of $0.48. Day range $0.45–$0.50, opened at $0.48.
- Volume was 152.51K shares, 0.0x its 50-day average of 3.63M — lighter than usual.
- Price is -37.0% vs its 50-day average ($0.72) and -97.4% vs its 200-day average ($17.61).
- 52-week range $0.45–$200.00; the current price sits at 0% of that range, 99.8% below the 52-week high.
- That makes 7 straight losses.
Oct 16, 2026 — ONCO slides 12.6% to $0.48, a 52-week low, 6 down days in a row
- Closed at $0.48, -12.63% vs the prior close of $0.55. Day range $0.46–$0.53, opened at $0.52.
- Volume was 583.39K shares, 0.2x its 50-day average of 3.63M — lighter than usual.
- Price is -34.4% vs its 50-day average ($0.73) and -97.3% vs its 200-day average ($17.99).
- 52-week range $0.46–$200.00; today's close sits at 0% of that range, 99.8% below the 52-week high.
- That makes 6 straight losses.
Oct 15, 2026 — ONCO ends flat (+0.0%) to $0.55, 5 down days in a row
- Closed at $0.55, +0.00% vs the prior close of $0.55. Day range $0.53–$0.55, opened at $0.54.
- Volume was 159.90K shares, 0.0x its 50-day average of 3.64M — lighter than usual.
- Price is -25.8% vs its 50-day average ($0.74) and -97.0% vs its 200-day average ($18.35).
- 52-week range $0.53–$200.00; today's close sits at 0% of that range, 99.7% below the 52-week high.
- That makes 5 straight losses.
Oct 14, 2026 — ONCO dips 1.3% to $0.55, a 52-week low, 4 down days in a row
- Closed at $0.55, -1.26% vs the prior close of $0.56. Day range $0.54–$0.58, opened at $0.56.
- Volume was 249.70K shares, 0.1x its 50-day average of 3.63M — lighter than usual.
- Price is -26.7% vs its 50-day average ($0.75) and -97.1% vs its 200-day average ($18.71).
- 52-week range $0.54–$200.00; today's close sits at 0% of that range, 99.7% below the 52-week high.
- That makes 4 straight losses.
Oct 13, 2026 — ONCO slides 5.9% to $0.56, a 52-week low, 3 down days in a row
- Closed at $0.56, -5.93% vs the prior close of $0.59. Day range $0.54–$0.58, opened at $0.55.
- Volume was 325.20K shares, 0.1x its 50-day average of 3.63M — lighter than usual.
- Price is -26.4% vs its 50-day average ($0.75) and -97.1% vs its 200-day average ($19.06).
- 52-week range $0.54–$200.00; today's close sits at 0% of that range, 99.7% below the 52-week high.
- That makes 3 straight losses.
Oct 12, 2026 — ONCO slides 4.8% to $0.59, a 52-week low
- Closed at $0.59, -4.84% vs the prior close of $0.62. Day range $0.56–$0.60, opened at $0.59.
- Volume was 789.50K shares, 0.2x its 50-day average of 3.62M — lighter than usual.
- Price is -22.3% vs its 50-day average ($0.76) and -97.0% vs its 200-day average ($19.44).
- 52-week range $0.56–$207.00; today's close sits at 0% of that range, 99.7% below the 52-week high.
Oct 9, 2026 — ONCO slides 5.2% to $0.62
- Closed at $0.62, -5.20% vs the prior close of $0.65. Day range $0.60–$0.64, opened at $0.64.
- Volume was 1.07M shares, 0.3x its 50-day average of 3.61M — lighter than usual.
- Price is -18.8% vs its 50-day average ($0.76) and -96.9% vs its 200-day average ($19.83).
- 52-week range $0.58–$209.50; today's close sits at 0% of that range, 99.7% below the 52-week high.
Oct 8, 2026 — ONCO jumps 9.5% to $0.65 on 17.4x normal volume
- Closed at $0.65, +9.55% vs the prior close of $0.60. Day range $0.60–$0.86, opened at $0.62.
- Volume was 46.90M shares, 17.4x its 50-day average of 2.69M — unusually heavy trading.
- Price is -14.7% vs its 50-day average ($0.77) and -96.8% vs its 200-day average ($20.23).
- 52-week range $0.58–$209.50; today's close sits at 0% of that range, 99.7% below the 52-week high.
Oct 7, 2026 — ONCO slides 9.7% to $0.60, a 52-week low, 7 down days in a row
- Closed at $0.60, -9.68% vs the prior close of $0.66. Day range $0.58–$0.66, opened at $0.66.
- Volume was 606.90K shares, 0.2x its 50-day average of 2.68M — lighter than usual.
- Price is -22.4% vs its 50-day average ($0.77) and -97.1% vs its 200-day average ($20.67).
- 52-week range $0.58–$209.50; today's close sits at 0% of that range, 99.7% below the 52-week high.
- That makes 7 straight losses.
- SEC filings that day: DEF 14A.
Oct 6, 2026 — ONCO dips 1.8% to $0.66, 6 down days in a row
- Closed at $0.66, -1.78% vs the prior close of $0.67. Day range $0.62–$0.69, opened at $0.67.
- Volume was 520.00K shares, 0.2x its 50-day average of 2.67M — lighter than usual.
- Price is -14.5% vs its 50-day average ($0.77) and -96.9% vs its 200-day average ($21.13).
- 52-week range $0.59–$209.50; today's close sits at 0% of that range, 99.7% below the 52-week high.
- That makes 6 straight losses.
Oct 5, 2026 — ONCO slides 8.3% to $0.67, 5 down days in a row
- Closed at $0.67, -8.31% vs the prior close of $0.73. Day range $0.67–$0.73, opened at $0.72.
- Volume was 503.30K shares, 0.2x its 50-day average of 2.67M — lighter than usual.
- Price is -13.3% vs its 50-day average ($0.78) and -96.9% vs its 200-day average ($21.60).
- 52-week range $0.59–$209.50; today's close sits at 0% of that range, 99.7% below the 52-week high.
- That makes 5 straight losses.
Oct 2, 2026 — ONCO dips 1.3% to $0.73, 4 down days in a row
- Closed at $0.73, -1.34% vs the prior close of $0.74. Day range $0.71–$0.75, opened at $0.74.
- Volume was 409.40K shares, 0.2x its 50-day average of 2.66M — lighter than usual.
- Price is -5.8% vs its 50-day average ($0.78) and -96.7% vs its 200-day average ($22.08).
- 52-week range $0.59–$209.50; today's close sits at 0% of that range, 99.6% below the 52-week high.
- That makes 4 straight losses.
ONCO bull case vs bear case (from the data)
- Insiders made 12 open-market purchases in the last 12 months.
- Price is -37.0% vs its 50-day average — short-term trend is down.
- Price is -97.4% vs its 200-day average — below the long-term trend line.
- Annual revenue fell 67.7% in the latest fiscal year (SEC XBRL).
- Latest fiscal-year net income: loss of $14.03M.
- Share count up 155.5% in a year (dilution).
- High volatility: average daily move of 8.0% over 20 sessions.
ONCO latest news & SEC filings
Every SEC filing by or about ONCO in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 16, 2026 · Form ARS — Annual report to shareholders
Annual report to shareholders
Oct 7, 2026 · Form DEF 14A — Proxy statement
Proxy statement — agenda for the shareholder meeting (board elections, executive pay, votes)
Sep 17, 2026 · Form PRE 14A — Preliminary proxy statement
Preliminary proxy statement
Sep 14, 2026 · Form DEFA14A — Additional proxy materials
Additional proxy materials
Sep 14, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 1.01 — Signed a material agreement.
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
Sep 8, 2026 · Form 424B3 — Prospectus / supplement for an offering or resale
Prospectus / supplement for an offering or resale
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Aug 31, 2026 · Form S-1/A — S-1/A filing
S-1/A filing
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Aug 13, 2026 · Form 10-Q — Quarterly report
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Revenue: $17.12K (prior year $106.49K) (-83.9% vs Jun 30, 2025)
- Net income: -$2.87M (prior year -$2.37M) (loss widened vs Jun 30, 2025)
- Diluted EPS: -$1.28 (prior year -$237.91) (loss narrowed vs Jun 30, 2025)
Aug 12, 2026 · Form S-1 — Registration statement (S-1)
Registration statement (S-1) — registering new shares, usually for an IPO or offering
An offering document: new shares or debt may be sold, which can increase the share count (dilution) or debt load. Size and terms are in the prospectus.
Jul 29, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 1.01 — Signed a material agreement.
- Item 3.02 — Sold unregistered shares.
Jul 27, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Things to know before you trade ONCO
- How much it moves: over the last 20 sessions the average daily move was 7.98% (largest 33.2%). That is a volatile stock.
- Liquidity: about 8.39M shares (≈$3.81M) trade per day on average.
- 52-week position: $0.45 vs a range of $0.45–$200.00 (0% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: 1:10 on May 21, 2026, 1:5 on Mar 25, 2026, 1:85 on Jun 13, 2025
- Insider trades (Form 4, last 12 months, recent 25 shown): 12 open-market buys, 12 sales; latest: Financial Lp Hrt sold 49,710 shares on Apr 21, 2026.
- Latest filings: 8-K Sep 14, 2026; 10-Q Aug 13, 2026; 8-K Jul 29, 2026.
- Share count: 3.95M shares outstanding (Aug 13, 2026), +155.5% vs a year earlier — notable dilution.
- Listing: Nasdaq · industry: Pharmaceutical Preparations.
ONCO market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 19, 2026 | 0.48 | 0.50 | 0.45 | 0.45 | 152.51K |
| Oct 16, 2026 | 0.52 | 0.53 | 0.46 | 0.48 | 585.40K |
| Oct 15, 2026 | 0.54 | 0.55 | 0.53 | 0.55 | 159.90K |
| Oct 14, 2026 | 0.56 | 0.58 | 0.54 | 0.55 | 249.70K |
| Oct 13, 2026 | 0.55 | 0.58 | 0.54 | 0.56 | 325.20K |
| Oct 12, 2026 | 0.59 | 0.60 | 0.56 | 0.59 | 789.50K |
| Oct 9, 2026 | 0.64 | 0.64 | 0.60 | 0.62 | 1.07M |
| Oct 8, 2026 | 0.62 | 0.86 | 0.60 | 0.65 | 46.90M |
| Oct 7, 2026 | 0.66 | 0.66 | 0.58 | 0.60 | 606.90K |
| Oct 6, 2026 | 0.67 | 0.69 | 0.62 | 0.66 | 520.00K |
| Oct 5, 2026 | 0.72 | 0.73 | 0.67 | 0.67 | 503.30K |
| Oct 2, 2026 | 0.74 | 0.75 | 0.71 | 0.73 | 409.40K |
| Oct 1, 2026 | 0.78 | 0.78 | 0.70 | 0.74 | 881.70K |
| Sep 30, 2026 | 0.76 | 0.87 | 0.75 | 0.78 | 905.20K |
| Sep 29, 2026 | 1.05 | 1.07 | 0.72 | 0.82 | 5.47M |
| Sep 28, 2026 | 1.19 | 1.36 | 1.05 | 1.11 | 22.57M |
| Sep 25, 2026 | 1.12 | 1.42 | 1.00 | 1.03 | 47.79M |
| Sep 24, 2026 | 0.83 | 0.92 | 0.78 | 0.91 | 5.79M |
| Sep 23, 2026 | 0.65 | 1.15 | 0.65 | 0.91 | 31.96M |
| Sep 22, 2026 | 0.64 | 0.70 | 0.64 | 0.68 | 165.40K |
About Onconetix
Onconetix (ONCO) is listed on the Nasdaq and classified by the SEC under “Pharmaceutical Preparations”. Its business address is in CINCINNATI, OH. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1782107.
ONCO board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Sammy Dorf | Director | Mar 27, 2026 |
| Sarah Romano | Director | Dec 12, 2025 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| David Allan White | Chief Executive Officer | Mar 27, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Apr 21, 2026 | Financial Lp Hrt | Sale | 49,710 | $0.69 |
| Apr 21, 2026 | Financial Lp Hrt | Sale | 49,710 | $0.69 |
| Apr 21, 2026 | Financial Lp Hrt | Sale | 49,710 | $0.69 |
| Apr 21, 2026 | Financial Lp Hrt | Sale | 49,710 | $0.69 |
| Apr 20, 2026 | Financial Lp Hrt | Sale | 94,462 | $0.75 |
| Apr 20, 2026 | Financial Lp Hrt | Sale | 94,462 | $0.75 |
| Apr 20, 2026 | Financial Lp Hrt | Sale | 94,462 | $0.75 |
| Apr 20, 2026 | Financial Lp Hrt | Sale | 94,462 | $0.75 |
| Apr 17, 2026 | Financial Lp Hrt | Buy | 34,636 | $0.73 |
| Apr 17, 2026 | Financial Lp Hrt | Buy | 34,636 | $0.73 |
| Apr 17, 2026 | Financial Lp Hrt | Buy | 34,636 | $0.73 |
| Apr 17, 2026 | Financial Lp Hrt | Buy | 34,636 | $0.73 |
| Apr 16, 2026 | Financial Lp Hrt | Sale | 53,867 | $0.73 |
| Apr 16, 2026 | Financial Lp Hrt | Sale | 53,867 | $0.73 |
| Apr 16, 2026 | Financial Lp Hrt | Sale | 53,867 | $0.73 |
ONCO financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | $815.37K | $-14.03M | -16.56 | $-9.68M |
| Dec 31, 2024 | $2.52M | $-58.69M | -1,823.39 | $-10.50M |
| Dec 31, 2023 | $58.47K | $-37.41M | -87.45 | $-13.58M |
| Dec 31, 2022 | — | $-13.42M | -1.10 | $-8.68M |
| Dec 31, 2021 | — | $-3.42M | -1.26 | $-2.04M |
Latest balance sheet: total assets $16.43M, total liabilities $2.96M, cash $25.75M (as of Jun 30, 2026).
ONCO earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| No 8-K earnings releases in recent filings. | ||
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: intraday data as of Oct 19, 2026, 12:35 PM ET. Filings: SEC EDGAR. Refreshed every 2 hours during US market hours.