Simplex Trading
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Simplex Trading’s Applied Optoelectronics AAOI Stock Holding History

Simplex Trading’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 		$10.2M Buy
120,500
+42,400
+54% +$2.71M 0.01% 692
2025
Q4 		$2.72M Sell
78,100
-102,100
-57% -$3.05M ﹤0.01% 1734
2025
Q3 		$4.67M Buy
180,200
+20,800
+13% +$532K ﹤0.01% 1520
2025
Q2 		$4.09M Sell
159,400
-15,500
-9% -$251K ﹤0.01% 1517
2025
Q1 		$2.68M Sell
174,900
-152,600
-47% -$3.84M ﹤0.01% 1766
2024
Q4 		$12.1M Buy
327,500
+207,800
+174% +$5.59M 0.01% 909
2024
Q3 		$1.71M Buy
119,700
+8,900
+8% +$92.3K ﹤0.01% 2413
2024
Q2 		$918K Buy
110,800
+12,100
+12% +$133K ﹤0.01% 3008
2024
Q1 		$1.37M Sell
98,700
-18,900
-16% -$319K ﹤0.01% 2795
2023
Q4 		$2.27M Sell
117,600
-22,400
-16% -$293K ﹤0.01% 2254
2023
Q3 		$1.53M Buy
140,000
+80,300
+135% +$852K ﹤0.01% 2305
2023
Q2 		$355K Buy
59,700
+54,500
+1,048% +$143K ﹤0.01% 3659
2023
Q1 		$11K Sell
5,200
-11,300
-68% -$27.7K ﹤0.01% 7436
2022
Q4 		$31K Sell
16,500
-3,200
-16% -$7.61K ﹤0.01% 6407
2022
Q3 		$53K Buy
19,700
+18,300
+1,307% +$41.3K ﹤0.01% 6359
2022
Q2 		$2K Sell
1,400
-300
-18% -$735 ﹤0.01% 9277
2022
Q1 		$6K Sell
1,700
-3,200
-65% -$12.4K ﹤0.01% 9250
2021
Q4 		$25K Buy
4,900
+100
+2% +$638 ﹤0.01% 8102
2021
Q3 		$40K Hold
4,800
– – ﹤0.01% 7776
2021
Q2 		$40K Buy
4,800
+4,696
+4,515% +$38.2K ﹤0.01% 7911
2021
Q1 		$86K Sell
104
-313
-75% -$3.14K ﹤0.01% 5945
2020
Q4 		$354K Sell
417
-46
-10% -$419 ﹤0.01% 3859
2020
Q3 		$520K Buy
463
+289
+166% +$3.5K ﹤0.01% 2955
2020
Q2 		$189K Sell
174
-319
-65% -$2.92K ﹤0.01% 4063
2020
Q1 		$374K Sell
493
-81
-14% -$855 ﹤0.01% 2911
2019
Q4 		$681K Sell
574
-79
-12% -$843 ﹤0.01% 2431
2019
Q3 		$732K Sell
653
-326
-33% -$3.27K ﹤0.01% 2250
2019
Q2 		$1.01M Buy
979
+605
+162% +$6.47K ﹤0.01% 1899
2019
Q1 		$456K Sell
374
-56
-13% -$844 ﹤0.01% 2752
2018
Q4 		$663K Buy
430
+190
+79% +$3.83K ﹤0.01% 1973
2018
Q3 		$591K Sell
240
-563
-70% -$22.1K ﹤0.01% 2451
2018
Q2 		$3.6M Buy
803
+365
+83% +$13K 0.01% 733
2018
Q1 		$25K Sell
438
-207
-32% -$6.44K ﹤0.01% 3114
2017
Q4 		$173K Sell
645
-1,070
-62% -$47.2K 0.01% 1377
2017
Q3 		$732K Buy
1,715
+460
+37% +$32.5K 0.03% 497
2017
Q2 		$556K Buy
1,255
+1,097
+694% +$64.1K 0.02% 593
2017
Q1 		$246K Sell
158
-131
-45% -$5.17K 0.01% 1087
2016
Q4 		$50K Sell
289
-8
-3% -$185 ﹤0.01% 2148
2016
Q3 		$70K Buy
297
+195
+191% +$3.02K ﹤0.01% 1819
2016
Q2 		$9K Buy
+102
New +$1.15K ﹤0.01% 3655
2015
Q4 		– Sell
-50
Closed -$2K – 5272
2015
Q3 		$2K Hold
50
– – ﹤0.01% 4549
2015
Q2 		$1K Buy
+50
New +$799 ﹤0.01% 4532

Other funds holding AAOI

BlackRock
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
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Invesco
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
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Simplex Trading's AAOI Position: Q1 2026 in Review

Simplex Trading reduced its Applied Optoelectronics (AAOI) stake by 76% in Q1 2026, selling an estimated $7.85M and leaving 39,903 shares worth $3.38M. The position accounts for ﹤0.01% of the portfolio, ranked #1397.

Simplex Trading first reported a position in AAOI in Q4 2014 and has held it in 30 quarters since. The position peaked at $5.68M in Q4 2025. 375 funds tracked by Wall St. Rank hold AAOI as of Q1 2026.

  • Simplex Trading held 39,903 shares of Applied Optoelectronics worth $3.38M as of Q1 2026.
  • Simplex Trading sold 123,005 Applied Optoelectronics shares in Q1 2026, an estimated $7.85M.
  • Applied Optoelectronics made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #1397 holding.
  • Simplex Trading first reported a position in Applied Optoelectronics in Q4 2014 and has held it in 30 quarters since.
  • Simplex Trading's Applied Optoelectronics position peaked at $5.68M in Q4 2025.
  • 375 funds tracked by Wall St. Rank held Applied Optoelectronics as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.