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The price of Adicet Bio, Inc. (ACET) on October 9, 2026 is 5.61 USD, -2.26% on the day. Over 52 weeks the stock traded between 5.55 USD and 17.44 USD; the price now sits 1% of the way up that range. Over the past year the price changed by -62.26%. Market capitalization is 53.84 million USD, rank 254 among 372 stocks of the same industry with a known capitalization.
Closing prices for 9 October 2026
Next earnings report: 4 November 2026 · Earnings calendar
Change over the period shown (line colour): −64.19 %
Adicet Bio, Inc. trades on Nasdaq under the ticker ACET. The company belongs to the Health care sector. The trading history on this page starts on 26 January 2018.
Over the past 52 weeks ACET has traded between 5.55 $ and 17.44 $. As of 9 October 2026 the price stood 0.50 % of the way from the 52-week low to the high.
Over one year ACET shares fell 62.26 %; over six months they fell 17.01 %. Volatility over 90 days is 89.55 %. Dividends are not included: this is price change only, as of 9 October 2026.
The company reported a loss over the last four quarters, so a price-to-earnings ratio is not calculated. Price to book is 0.4, below the sector median of 2.5. Calculated from reports for the period ending 31 March 2026.
| Date | Open | High | Low | Close | Volume, shares |
|---|---|---|---|---|---|
| 9 October 2026 | 5.72 | 6.05 | 5.61 | 5.61 | 189,800 |
| 8 October 2026 | 6.16 | 6.17 | 5.55 | 5.74 | 487,600 |
| 7 October 2026 | 6.21 | 6.44 | 6.12 | 6.18 | 214,300 |
| 6 October 2026 | 6.52 | 6.55 |
The series is stated in the current share scale after splits; dividends are not included in the price
Based on the last 12 months of reports, through 31 March 2026
The sector median covers every company in the sector on the US market, loss-making ones included.
Address:131 DARTMOUTH STREET 3RD FLOOR, BOSTON, MA, 02116, US
ACET has a return on equity of −77.70 %, below the sector median of −41.68 %. Return on assets is −64.25 %, below the sector median of −32.11 %.
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| 6.21 |
| 6.25 |
| 135,500 |
| 5 October 2026 | 6.53 | 6.69 | 6.28 | 6.47 | 152,700 |
| 2 October 2026 | 6.70 | 6.82 | 6.50 | 6.50 | 164,700 |
| 1 October 2026 | 7.06 | 7.17 | 6.64 | 6.64 | 148,900 |
| 30 September 2026 | 6.80 | 7.28 | 6.71 | 7.14 | 210,800 |
| 29 September 2026 | 6.41 | 7.06 | 6.37 | 6.83 | 666,600 |
| 28 September 2026 | 7.96 | 7.96 | 6.25 | 6.35 | 2M |
| 25 September 2026 | 8.29 | 9.11 | 8.29 | 9.02 | 638,600 |
| 24 September 2026 | 8.49 | 8.49 | 7.89 | 8.27 | 358,500 |
| 23 September 2026 | 9.12 | 9.31 | 8.42 | 8.49 | 262,500 |
| 22 September 2026 | 9.00 | 9.44 | 8.98 | 9.15 | 87,800 |
| 21 September 2026 | 9.23 | 9.24 | 8.78 | 8.93 | 49,500 |
| 18 September 2026 | 8.96 | 9.41 | 8.76 | 9.18 | 114,200 |
| 17 September 2026 | 9.20 | 9.33 | 8.86 | 9.01 | 130,700 |
| 16 September 2026 | 8.52 | 9.44 | 8.45 | 9.05 | 258,000 |
| 15 September 2026 | 9.70 | 9.70 | 7.91 | 8.51 | 479,000 |
| 14 September 2026 | 9.51 | 9.84 | 9.42 | 9.70 | 124,800 |