Archimedes Tech SPAC Partners II (ATIIU) Stock Analysis & Price (Updated Oct 16, 2026, 4:00 PM ET)
Updated Oct 16, 2026, 4:00 PM ET
- Closed at $9.01, +2.62% vs the prior close of $8.78.
- Volume 1.70K shares, 0.4x its 50-day average (light).
- No new SEC filings since the prior session.
- No new insider buys or sales reported since the prior session.
ATIIU rises 2.6% to $9.01. Closed at $9.01, +2.62% vs the prior close of $8.78. Day range $9.01–$10.75, opened at $9.77.
ATIIU daily analysis — what happened
A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.
Oct 16, 2026 — ATIIU rises 2.6% to $9.01
- Closed at $9.01, +2.62% vs the prior close of $8.78. Day range $9.01–$10.75, opened at $9.77.
- Volume was 1.70K shares, 1.0x its 50-day average of 1.67K.
- Price is -20.2% vs its 50-day average ($11.29) and -20.4% vs its 200-day average ($11.32).
- 52-week range $8.78–$50.99; today's close sits at 1% of that range, 82.3% below the 52-week high.
Oct 15, 2026 — ATIIU slides 20.1% to $8.78, a 52-week low on 6.6x normal volume
- Closed at $8.78, -20.11% vs the prior close of $10.99. Day range $8.78–$10.75, opened at $9.64.
- Volume was 9.70K shares, 6.6x its 50-day average of 1.48K — unusually heavy trading.
- Price is -22.6% vs its 50-day average ($11.34) and -22.5% vs its 200-day average ($11.33).
- 52-week range $8.78–$50.99; today's close sits at 0% of that range, 82.8% below the 52-week high.
Oct 14, 2026 — ATIIU slides 15.4% to $10.99, a 3-month low on 17.6x normal volume
- Closed at $10.99, -15.40% vs the prior close of $12.99. Day range $9.01–$14.29, opened at $14.29.
- Volume was 19.20K shares, 17.6x its 50-day average of 1.09K — unusually heavy trading.
- Price is -3.5% vs its 50-day average ($11.39) and -3.1% vs its 200-day average ($11.34).
- 52-week range $9.01–$50.99; today's close sits at 5% of that range, 78.4% below the 52-week high.
Oct 13, 2026 — ATIIU jumps 17.8% to $12.99, a 3-month high on 141.7x normal volume
- Closed at $12.99, +17.77% vs the prior close of $11.03. Day range $11.01–$32.40, opened at $11.21.
- Volume was 40.80K shares, 141.7x its 50-day average of 288 — unusually heavy trading.
- Price is +13.9% vs its 50-day average ($11.41) and +14.6% vs its 200-day average ($11.33).
- 52-week range $10.50–$50.99; today's close sits at 6% of that range, 74.5% below the 52-week high.
- SEC filings that day: 8-K.
Oct 12, 2026 — ATIIU dips 1.9% to $11.03, a 3-month low
- Closed at $11.03, -1.87% vs the prior close of $11.24. Day range $11.03–$11.03, opened at $11.03.
- Volume was 200 shares, 0.7x its 50-day average of 284.
- Price is -3.1% vs its 50-day average ($11.38) and -2.6% vs its 200-day average ($11.32).
- 52-week range $10.50–$50.99; today's close sits at 1% of that range, 78.4% below the 52-week high.
Oct 9, 2026 — ATIIU rises 0.5% to $11.24 on 3.4x normal volume
- Closed at $11.24, +0.54% vs the prior close of $11.18. Day range $11.19–$11.24, opened at $11.19.
- Volume was 900 shares, 3.4x its 50-day average of 266 — unusually heavy trading.
- Price is -1.3% vs its 50-day average ($11.38) and -0.7% vs its 200-day average ($11.32).
- 52-week range $10.50–$50.99; today's close sits at 2% of that range, 78.0% below the 52-week high.
Oct 8, 2026 — ATIIU dips 0.8% to $11.18, a 3-month low, 6 down days in a row
- Closed at $11.18, -0.80% vs the prior close of $11.27. Day range $11.13–$11.18, opened at $11.13.
- Volume was 300 shares, 1.2x its 50-day average of 260.
- Price is -1.8% vs its 50-day average ($11.38) and -1.2% vs its 200-day average ($11.32).
- 52-week range $10.50–$50.99; today's close sits at 2% of that range, 78.1% below the 52-week high.
- That makes 6 straight losses.
Oct 7, 2026 — ATIIU dips 0.5% to $11.27, a 1-month low on 4.6x normal volume
- Closed at $11.27, -0.53% vs the prior close of $11.33. Day range $11.27–$11.50, opened at $11.49.
- Volume was 1.10K shares, 4.6x its 50-day average of 238 — unusually heavy trading.
- Price is -1.0% vs its 50-day average ($11.38) and -0.4% vs its 200-day average ($11.31).
- 52-week range $10.50–$50.99; today's close sits at 2% of that range, 77.9% below the 52-week high.
- That makes 5 straight losses.
Oct 6, 2026 — ATIIU ends flat (+0.0%) to $11.33, 4 down days in a row
- Closed at $11.33, +0.00% vs the prior close of $11.33. Day range $11.33–$11.33, opened at $11.33.
- Price is -0.5% vs its 50-day average ($11.38) and +0.2% vs its 200-day average ($11.31).
- 52-week range $10.50–$50.99; today's close sits at 2% of that range, 77.8% below the 52-week high.
- That makes 4 straight losses.
Oct 5, 2026 — ATIIU ends flat (+0.0%) to $11.33, 3 down days in a row
- Closed at $11.33, +0.00% vs the prior close of $11.33. Day range $11.33–$11.33, opened at $11.33.
- Price is -0.4% vs its 50-day average ($11.38) and +0.2% vs its 200-day average ($11.30).
- 52-week range $10.50–$50.99; today's close sits at 2% of that range, 77.8% below the 52-week high.
- That makes 3 straight losses.
Oct 2, 2026 — ATIIU ends flat (+0.0%) to $11.33
- Closed at $11.33, +0.00% vs the prior close of $11.33. Day range $11.33–$11.33, opened at $11.33.
- Price is -0.4% vs its 50-day average ($11.38) and +0.3% vs its 200-day average ($11.30).
- 52-week range $10.50–$50.99; today's close sits at 2% of that range, 77.8% below the 52-week high.
ATIIU latest news & SEC filings
Every SEC filing by or about ATIIU in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 13, 2026 · Form DEFA14A — Additional proxy materials
Additional proxy materials
Oct 13, 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.
Sep 24, 2026 · Form DEFM14A — DEFM14A filing
DEFM14A filing
Aug 14, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
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.
Aug 13, 2026 · Form 10-Q — Quarterly report
Quarterly report (unaudited financial statements for the quarter)
Quarter ended Jun 30, 2026:
- Net income: -$136.75M (prior year $2.36M) (loss widened vs Jun 30, 2025)
Jul 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 3.02 — Sold unregistered shares.
- Item 8.01 — Reported other events the company considers important.
Things to know before you trade ATIIU
- How much it moves: over the last 20 sessions the average daily move was 2.99% (largest 20.1%).
- Liquidity: about 3.75K shares (≈$33.83K) trade per day on average. Thin volume can mean wider bid/ask spreads.
- 52-week position: $9.01 vs a range of $8.78–$50.99 (1% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 0 sales.
- Latest filings: 8-K Oct 13, 2026; 10-Q Aug 13, 2026; 8-K Jul 14, 2026.
- Share count: 29.59M shares outstanding (Aug 13, 2026), +0.0% vs a year earlier.
- Listing: Nasdaq · industry: Blank Checks.
ATIIU market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 16, 2026 | 9.77 | 10.75 | 9.01 | 9.01 | 1.70K |
| Oct 15, 2026 | 9.64 | 10.75 | 8.78 | 8.78 | 9.70K |
| Oct 14, 2026 | 14.29 | 14.29 | 9.01 | 10.99 | 19.20K |
| Oct 13, 2026 | 11.21 | 32.40 | 11.01 | 12.99 | 40.80K |
| Oct 12, 2026 | 11.03 | 11.03 | 11.03 | 11.03 | 200 |
| Oct 9, 2026 | 11.19 | 11.24 | 11.19 | 11.24 | 900 |
| Oct 8, 2026 | 11.13 | 11.18 | 11.13 | 11.18 | 300 |
| Oct 7, 2026 | 11.49 | 11.50 | 11.27 | 11.27 | 1.10K |
| Oct 6, 2026 | 11.33 | 11.33 | 11.33 | 11.33 | 0 |
| Oct 5, 2026 | 11.33 | 11.33 | 11.33 | 11.33 | 0 |
| Oct 2, 2026 | 11.33 | 11.33 | 11.33 | 11.33 | 0 |
| Oct 1, 2026 | 11.33 | 11.33 | 11.33 | 11.33 | 0 |
| Sep 30, 2026 | 11.30 | 11.33 | 11.30 | 11.33 | 1.10K |
| Sep 29, 2026 | 11.30 | 11.30 | 11.30 | 11.30 | 0 |
| Sep 28, 2026 | 11.30 | 11.30 | 11.30 | 11.30 | 0 |
| Sep 25, 2026 | 11.30 | 11.30 | 11.30 | 11.30 | 0 |
| Sep 24, 2026 | 11.30 | 11.30 | 11.30 | 11.30 | 0 |
| Sep 23, 2026 | 11.30 | 11.30 | 11.30 | 11.30 | 100 |
| Sep 22, 2026 | 11.30 | 11.30 | 11.30 | 11.30 | 0 |
| Sep 21, 2026 | 11.30 | 11.30 | 11.30 | 11.30 | 0 |
About Archimedes Tech SPAC Partners II
Archimedes Tech SPAC Partners II (ATIIU) is listed on the Nasdaq and classified by the SEC under “Blank Checks”. Its business address is in CLAYMONT, DE. Fiscal year ends December 31. SEC CIK 2028516.
ATIIU 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 |
|---|---|---|
| No Form 3/4/5 filings by this group in the last 12 months. | ||
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| No Form 3/4/5 filings by this group in the last 12 months. | ||
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| No open-market insider buys or sales reported in the last 12 months. | ||||
ATIIU financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Dec 31, 2025 | — | $7.99M | — | $-739.05K |
Latest balance sheet: total assets $244.68M, total liabilities $146.57M, cash $414.97K (as of Jun 30, 2026).
ATIIU 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: end-of-day data as of Oct 16, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.