Parallax Volatility Advisers’s Applied Optoelectronics AAOI Stock Holding History

Parallax Volatility Advisers’s Portfolio AAOI Stock Details AAOI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$6.03M	Buy	+71,300	New	+$4.55M	0.02%	529
2020 Q1	–	Sell	-9,100	Closed	-$110K	–	2415
2019 Q4	$110K	Sell	9,100 -900	-9%	-$9.6K	﹤0.01%	2120
2019 Q3	$110K	Sell	10,000 -3,900	-28%	-$39.1K	﹤0.01%	1967
2019 Q2	$141K	Sell	13,900 -5,700	-29%	-$60.9K	﹤0.01%	1801
2019 Q1	$240K	Buy	+19,600	New	+$296K	﹤0.01%	1812
2017 Q4	–	Sell	-50,000	Closed	-$3.23M	–	3883
2017 Q3	$3.23M	Hold	50,000	–	–	0.01%	696
2017 Q2	$3.09M	Buy	50,000 +48,200	+2,678%	+$2.82M	0.01%	705
2017 Q1	$101K	Buy	+1,800	New	+$71K	﹤0.01%	2262

Other funds holding AAOI

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

OAM

Oberweis Asset Management Lisle, Illinois $3.39B AUM 105.5% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Parallax Volatility Advisers's AAOI Position: Q1 2026 in Review

Parallax Volatility Advisers opened a new position in Applied Optoelectronics (AAOI) in Q1 2026: 38,271 shares worth $3.24M. The stake represents 0.01% of the portfolio and ranks #684 among its holdings. This is a return to the name: Parallax Volatility Advisers previously reported a position in AAOI as recently as Q4 2024.

Parallax Volatility Advisers first reported a position in AAOI in Q4 2016 and has held it in 12 quarters since. 375 funds tracked by Wall St. Rank hold AAOI as of Q1 2026.

Parallax Volatility Advisers held 38,271 shares of Applied Optoelectronics worth $3.24M as of Q1 2026.
Applied Optoelectronics was a new Parallax Volatility Advisers position in Q1 2026.
Applied Optoelectronics made up 0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #684 holding.
Parallax Volatility Advisers first reported a position in Applied Optoelectronics in Q4 2016 and has held it in 12 quarters since.
375 funds tracked by Wall St. Rank held Applied Optoelectronics as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.