• Sep 15, 2026

  $105.04-0.26%

• Sep 14, 2026

  $105.31-7.16%

  Shares fell 7.16% while the broad market, as measured by the S&P 500 ETF, was little changed with a -0.45% move on the same day [1], indicating the decline was not shared by the wider market.

  • 1Broad market

• Sep 11, 2026

  $113.43+0.11%

• Sep 10, 2026

  $113.30-1.96%

• Sep 9, 2026

  $115.56-3.03%

  Shares fell 3.03% while the broad market, as measured by the S&P 500 ETF (SPY), was little changed, down 0.46% on the same day [1]. The decline was not shared by the wider market [1].

  • 1Broad market

• Sep 8, 2026

  $119.17+3.55%

  Shares rose 3.55%, a move not shared by the broad market, which slipped 0.55% that same session [1].

  • 1Broad market

• Sep 4, 2026

  $115.08+4.27%

  Axcelis shares rose 4.27% on a day the broad market slipped 0.39%, indicating the move was not shared by the wider market [1]. The gain came alongside elevated trading, with volume running 1.6x the trailing average and the session ranging between 111.79 and 115.20 [2].

  • 1Broad market
  • 2Market data

Closing prices for ACLS. Summaries describe past sessions only and are not advice, a forecast or a recommendation.

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