Calamos Advisors
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Calamos Advisors’s Axcelis ACLS Stock Holding History

Calamos Advisors’s Portfolio ACLS Stock Details ACLS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$831K Buy
+4,387
New +$651K ﹤0.01% 778
2023
Q4 		– Sell
-14,274
Closed -$2.33M – 924
2023
Q3 		$2.33M Sell
14,274
-4
-0% -$704 0.01% 603
2023
Q2 		$2.62M Buy
14,278
+8,746
+158% +$1.26M 0.01% 636
2023
Q1 		$737K Buy
+5,532
New +$650K ﹤0.01% 832

Other funds holding ACLS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BNP Paribas Asset Management
BNP Paribas Asset Management Paris, France $99.8B AUM 45.22% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Calamos Advisors's ACLS Position: Q2 2026 in Review

Calamos Advisors opened a new position in Axcelis (ACLS) in Q2 2026: 4,387 shares worth $831K. The stake represents ﹤0.01% of the portfolio and ranks #778 among its holdings. This is a return to the name: Calamos Advisors previously reported a position in ACLS as recently as Q3 2023.

Calamos Advisors first reported a position in ACLS in Q1 2023 and has held it in 4 quarters since. The position peaked at $2.62M in Q2 2023. 441 funds tracked by Wall St. Rank hold ACLS as of Q2 2026.

  • Calamos Advisors held 4,387 shares of Axcelis worth $831K as of Q2 2026.
  • Axcelis was a new Calamos Advisors position in Q2 2026.
  • Axcelis made up ﹤0.01% of Calamos Advisors's portfolio in Q2 2026, its #778 holding.
  • Calamos Advisors first reported a position in Axcelis in Q1 2023 and has held it in 4 quarters since.
  • Calamos Advisors's Axcelis position peaked at $2.62M in Q2 2023.
  • 441 funds tracked by Wall St. Rank held Axcelis as of Q2 2026.

Based on Calamos Advisors's 13F filing for Q2 2026, filed 31 Jul 2026.