Archimedes Tech SPAC Partners II Stock Price History
NASDAQ: ATIIFinancial ServicesShell CompaniesUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
ATII price history at a glance
The price history for Archimedes Tech SPAC Partners II (ATII) on this page begins on July 6, 2026, when the stock closed at $10.86; it most recently closed at $10.69 on October 5, 2026. The highest price in this record is $10.94, reached on July 6, 2026; the latest close is 2.3% below that peak. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2026
- $10.94
- Date of high
- Jul 6, 2026
- Low since 2026
- $10.58
- Date of low
- Aug 3, 2026
- 52-week high
- $11.40
- 52-week low
- $10.27
- IPO year
- 2025
- Last close
- $10.69
ATII returns
1 week
+0.09%
1 month
+0.28%
3 months
-1.57%
ATII price return, excluding dividends.
ATII daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 10.70 | 10.70 | 10.69 | 10.69 | -0.09% | |
| 10.69 | 10.70 | 10.68 | 10.70 | 0.00% | |
| 10.70 | 10.70 | 10.69 | 10.70 | 0.00% | |
| 10.70 | 10.71 | 10.69 | 10.70 | 0.00% | |
| 10.71 | 10.71 | 10.69 | 10.70 | +0.19% | |
| 10.70 | 10.70 | 10.68 | 10.68 | -0.09% | |
| 10.69 | 10.70 | 10.68 | 10.69 | +0.09% | |
| 10.69 | 10.70 | 10.68 | 10.68 | -0.09% | |
| 10.69 | 10.69 | 10.67 | 10.69 | +0.05% | |
| 10.68 | 10.69 | 10.67 | 10.69 | -0.05% | |
| 10.69 | 10.70 | 10.68 | 10.69 | +0.05% | |
| 10.70 | 10.72 | 10.68 | 10.69 | +0.05% | |
| 10.70 | 10.71 | 10.68 | 10.68 | -0.19% | |
| 10.69 | 10.70 | 10.68 | 10.70 | +0.14% | |
| 10.67 | 10.69 | 10.67 | 10.69 | +0.14% | |
| 10.67 | 10.68 | 10.65 | 10.67 | +0.05% | |
| 10.66 | 10.68 | 10.66 | 10.67 | +0.05% | |
| 10.67 | 10.67 | 10.66 | 10.66 | 0.00% | |
| 10.67 | 10.67 | 10.65 | 10.66 | -0.05% | |
| 10.64 | 10.67 | 10.64 | 10.67 | +0.23% | |
| 10.68 | 10.68 | 10.64 | 10.64 | -0.09% | |
| 10.65 | 10.67 | 10.65 | 10.65 | -0.09% | |
| 10.65 | 10.66 | 10.64 | 10.66 | +0.09% | |
| 10.66 | 10.67 | 10.65 | 10.65 | 0.00% | |
| 10.64 | 10.66 | 10.64 | 10.65 | +0.09% | |
| 10.67 | 10.67 | 10.64 | 10.64 | -0.19% | |
| 10.71 | 10.71 | 10.65 | 10.66 | +0.09% | |
| 10.70 | 10.70 | 10.64 | 10.65 | -0.37% | |
| 10.67 | 10.70 | 10.64 | 10.69 | +0.19% | |
| 10.70 | 10.70 | 10.63 | 10.67 | 0.00% | |
| 10.67 | 10.73 | 10.64 | 10.67 | +0.09% | |
| 10.68 | 10.71 | 10.65 | 10.66 | +0.09% | |
| 10.68 | 10.68 | 10.65 | 10.65 | 0.00% | |
| 10.70 | 10.71 | 10.65 | 10.65 | -0.33% | |
| 10.64 | 10.71 | 10.62 | 10.69 | +0.52% | |
| 10.62 | 10.64 | 10.62 | 10.63 | +0.09% | |
| 10.62 | 10.63 | 10.62 | 10.62 | 0.00% | |
| 10.65 | 10.66 | 10.62 | 10.62 | -0.19% | |
| 10.65 | 10.66 | 10.64 | 10.64 | 0.00% | |
| 10.65 | 10.69 | 10.64 | 10.64 | -0.19% | |
| 10.65 | 10.67 | 10.64 | 10.66 | +0.19% | |
| 10.70 | 10.70 | 10.64 | 10.64 | -0.09% | |
| 10.69 | 10.69 | 10.64 | 10.65 | 0.00% | |
| 10.69 | 10.71 | 10.64 | 10.65 | -0.37% | |
| 10.71 | 10.72 | 10.64 | 10.69 | -0.28% | |
| 10.73 | 10.74 | 10.71 | 10.72 | -0.09% | |
| 10.66 | 10.80 | 10.66 | 10.73 | +0.28% | |
| 10.67 | 10.86 | 10.66 | 10.70 | +0.47% | |
| 10.65 | 10.68 | 10.58 | 10.65 | 0.00% | |
| 10.71 | 10.71 | 10.64 | 10.65 | 0.00% | |
| 10.68 | 10.71 | 10.64 | 10.65 | 0.00% | |
| 10.72 | 10.72 | 10.62 | 10.65 | -0.28% | |
| 10.64 | 10.75 | 10.64 | 10.68 | 0.00% | |
| 10.64 | 10.70 | 10.64 | 10.68 | -0.05% | |
| 10.66 | 10.74 | 10.60 | 10.69 | -0.14% | |
| 10.66 | 10.72 | 10.66 | 10.70 | +0.19% | |
| 10.70 | 10.70 | 10.66 | 10.68 | -0.19% | |
| 10.74 | 10.74 | 10.67 | 10.70 | -0.09% | |
| 10.71 | 10.72 | 10.68 | 10.71 | 0.00% | |
| 10.70 | 10.74 | 10.65 | 10.71 | -0.28% | |
| 10.75 | 10.78 | 10.68 | 10.74 | -0.09% | |
| 10.80 | 10.80 | 10.71 | 10.75 | -0.46% | |
| 10.83 | 10.85 | 10.77 | 10.80 | 0.00% | |
| 10.82 | 10.93 | 10.78 | 10.80 | -0.55% | |
| 10.88 | 10.88 | 10.84 | 10.86 | -0.28% | |
| 10.84 | 10.94 | 10.83 | 10.89 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the ATII chart for longer ranges.