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 		$17.2M Sell
203,500
-311,600
-60% -$19.9M 0.01% 481
2025
Q4 		$18M Buy
515,100
+206,700
+67% +$6.17M 0.01% 594
2025
Q3 		$8M Buy
308,400
+253,000
+457% +$6.47M ﹤0.01% 1113
2025
Q2 		$1.42M Sell
55,400
-64,800
-54% -$1.05M ﹤0.01% 2425
2025
Q1 		$1.84M Sell
120,200
-61,800
-34% -$1.55M ﹤0.01% 2106
2024
Q4 		$6.71M Buy
182,000
+100,200
+122% +$2.7M ﹤0.01% 1270
2024
Q3 		$1.17M Sell
81,800
-27,000
-25% -$280K ﹤0.01% 2785
2024
Q2 		$901K Buy
108,800
+28,400
+35% +$312K ﹤0.01% 3028
2024
Q1 		$1.11M Sell
80,400
-6,800
-8% -$115K ﹤0.01% 3006
2023
Q4 		$1.68M Sell
87,200
-12,800
-13% -$167K ﹤0.01% 2504
2023
Q3 		$1.1M Buy
100,000
+98,300
+5,782% +$1.04M ﹤0.01% 2572
2023
Q2 		$10K Buy
1,700
+1,000
+143% +$2.62K ﹤0.01% 7364
2023
Q1 		$1K Buy
+700
New +$1.72K ﹤0.01% 8617
2022
Q2 		– Sell
-2,700
Closed -$9K – 9803
2022
Q1 		$9K Sell
2,700
-3,100
-53% -$12K ﹤0.01% 8933
2021
Q4 		$29K Sell
5,800
-3,600
-38% -$23K ﹤0.01% 7924
2021
Q3 		$78K Buy
9,400
+900
+11% +$6.64K ﹤0.01% 6955
2021
Q2 		$71K Buy
8,500
+8,386
+7,356% +$68.3K ﹤0.01% 7189
2021
Q1 		$95K Sell
114
-56
-33% -$562 ﹤0.01% 5809
2020
Q4 		$144K Buy
170
+47
+38% +$429 ﹤0.01% 5028
2020
Q3 		$138K Buy
123
+63
+105% +$763 ﹤0.01% 4555
2020
Q2 		$65K Sell
60
-458
-88% -$4.2K ﹤0.01% 5242
2020
Q1 		$393K Buy
518
+101
+24% +$1.07K ﹤0.01% 2850
2019
Q4 		$495K Buy
417
+129
+45% +$1.38K ﹤0.01% 2770
2019
Q3 		$323K Sell
288
-191
-40% -$1.92K ﹤0.01% 3094
2019
Q2 		$492K Buy
479
+245
+105% +$2.62K ﹤0.01% 2572
2019
Q1 		$285K Sell
234
-208
-47% -$3.14K ﹤0.01% 3241
2018
Q4 		$682K Sell
442
-351
-44% -$7.08K ﹤0.01% 1948
2018
Q3 		$1.96M Buy
793
+484
+157% +$19K 0.01% 1265
2018
Q2 		$1.39M Sell
309
-449
-59% -$16K 0.01% 1461
2018
Q1 		$607K Sell
758
-709
-48% -$22.1K 0.03% 626
2017
Q4 		$1.22M Sell
1,467
-771
-34% -$34K 0.05% 325
2017
Q3 		$1.9M Buy
2,238
+277
+14% +$19.6K 0.08% 204
2017
Q2 		$227K Buy
1,961
+1,385
+240% +$80.9K 0.01% 1120
2017
Q1 		$69K Buy
576
+520
+929% +$20.5K ﹤0.01% 2065
2016
Q4 		$4K Buy
56
+34
+155% +$788 ﹤0.01% 4477
2016
Q3 		$1K Sell
22
-36
-62% -$557 ﹤0.01% 5211
2016
Q2 		$7K Buy
58
+21
+57% +$237 ﹤0.01% 3892
2016
Q1 		$9K Buy
+37
New +$589 ﹤0.01% 3535
2015
Q3 		– Sell
-29
Closed -$4K – 5414
2015
Q2 		$4K Buy
+29
New +$463 ﹤0.01% 3763

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.