Parallax Volatility Advisers
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Parallax Volatility Advisers’s Aehr Test Systems AEHR Stock Holding History

Parallax Volatility Advisers’s Portfolio AEHR Stock Details AEHR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q4 		– Sell
-2,700
Closed -$34.7K – 1996
2024
Q3 		$34.7K Sell
2,700
-8,400
-76% -$121K ﹤0.01% 1862
2024
Q2 		$124K Buy
+11,100
New +$129K ﹤0.01% 1676
2023
Q3 		– Sell
-5,400
Closed -$223K – 2248
2023
Q2 		$223K Sell
5,400
-4,700
-47% -$154K ﹤0.01% 1863
2023
Q1 		$313K Sell
10,100
-86,800
-90% -$2.8M ﹤0.01% 1868
2022
Q4 		$1.95M Buy
96,900
+91,600
+1,728% +$1.96M ﹤0.01% 1407
2022
Q3 		$75K Buy
+5,300
New +$71.3K ﹤0.01% 2541

Other funds holding AEHR

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AIC
AWM Investment Company New York $903M AUM 163.47% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
HFF
Halter Ferguson Financial Carmel, Indiana $456M AUM 49.85% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
NCGI
Next Century Growth Investors Plymouth, Minnesota $1.38B AUM 102.34% 1-Year Est. Return

Parallax Volatility Advisers's AEHR Position: Q4 2025 in Review

Parallax Volatility Advisers sold out of Aehr Test Systems (AEHR) in Q4 2025, closing a stake of 10,768 shares — an estimated $324K sold.

Parallax Volatility Advisers first reported a position in AEHR in Q4 2022 and held it in 5 quarters. The position peaked at $379K in Q4 2022. 150 funds tracked by Wall St. Rank hold AEHR as of Q4 2025.

  • Parallax Volatility Advisers reported no remaining Aehr Test Systems position as of Q4 2025 after selling out during the quarter.
  • Parallax Volatility Advisers sold 10,768 Aehr Test Systems shares in Q4 2025, an estimated $324K.
  • Parallax Volatility Advisers first reported a position in Aehr Test Systems in Q4 2022 and held it in 5 quarters.
  • Parallax Volatility Advisers's Aehr Test Systems position peaked at $379K in Q4 2022.
  • 150 funds tracked by Wall St. Rank held Aehr Test Systems as of Q4 2025.

Based on Parallax Volatility Advisers's 13F filing for Q4 2025, filed 17 Feb 2026.