No ASX ETF holds Amer. Tungsten (AT4) as of 15 Oct 2026. Over the last year it fell 77.3%: on $10,000, −$7730. We explain 12 big moves in that time.
About AT4
- SectorMaterials
- IndustryMaterials
- Size$103.8m
- Held by0 ETFs
- Big moves12 in 1Y
Each dot is a move we explain. Tap one, or a row of Why it moved, to see what caused it.
Why it moved
- +11.1%peak +13.0%21 Sep 2026· Operational
Growing retail and analyst interest in AT4's US antimony and critical minerals projects appears to have driven speculative buying, pushing the stock up sharply without a formal company announcement.
- +10.1%peak +23.2%21 Aug 2026· Regulatory
AT4 surged after the U.S. Department of Energy announced funding related to domestic antimony supply, validating the company's strategic positioning in a critical mineral the U.S. is actively trying to secure.
- −11.0%peak −13.7%17 Aug 2026· Capital Raise
The stock likely fell due to selling pressure following a recent capital raise, as evidenced by a cleansing notice filed on 10 August 2026, with no offsetting sector tailwind despite materials peers rising on the day.
- +17.7%10 Aug 2026· Takeover / M&A
American Tungsten & Antimony confirmed awareness that a US acquisition deal will impact the value of its securities, driving a significant share price increase.
- +24.0%peak +28.0%7 Aug 2026· Operational
American Tungsten & Antimony's stock surged after announcing the acquisition of a refinery and initiating restart and expansion planning for its Del Sol facility, positioning it as a US critical minerals supplier amid strong policy tailwinds.
- +19.5%peak +31.7%29 Jul 2026· Takeover / M&A
AT4 surged after announcing the acquisition of a Nevada critical metals refinery, positioning the company as a US-based processor of strategically important tungsten and antimony at a time of tightening supply chains
- −19.0%23 Mar 2026· Sector Flow
AT4 shares fell as critical minerals stocks faced sector-wide selling pressure.
- −11.5%11 Mar 2026· Sector Flow
American Tungsten & Antimony shares fell 11.54% on March 10, 2026, as part of a broad sector selloff amid critical minerals uncertainty.
- −17.5%29 Jan 2026· Operational
The stock's 17.5% drop on 2026-01-28 is likely a profit-taking selloff following news of its Utah tungsten mill acquisition, which later saw a rebound on 2026-01-29.
- +14.3%14 Jan 2026· Unknown
No specific news or announcements found to explain the abnormal price movement; likely driven by market speculation or unlisted factors.
- −18.5%5 Nov 2025· Unknown
No articles found; insufficient evidence to explain the sharp decline.
- −12.1%28 Oct 2025· Unknown
No specific cause for the stock decline is identified in the available news article.
Held by 0 ETFs
No ETF we track holds AT4 directly.
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Why did AT4 fall 19.0% on 23 Mar 2026?
Amer. Tungsten
AT4 shares fell as critical minerals stocks faced sector-wide selling pressure.
The only directly relevant news headline attributes the decline to broad pressure on critical minerals stocks, indicating a sector-wide move rather than a company-specific event. The other article about US dual listings is unrelated and from two days prior. There is no evidence of a company-specific fundamental driver such as earnings or capital raising.
Written by a language model from the evidence below, and it can be wrong. Tell us and we will fix or remove it. General information only, not financial product advice. It does not consider your objectives, finances or needs. Past performance is not a guide to future performance.
Evidence
News coverage