Citigroup
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Citigroup’s Applied Optoelectronics AAOI Stock Holding History

Citigroup’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 		$13.9M Buy
164,300
+34,300
+26% +$2.19M 0.01% 1274
2025
Q4 		$4.53M Buy
+130,000
New +$3.88M ﹤0.01% 2083
2021
Q1 		– Sell
-5,600
Closed -$48K – 6148
2020
Q4 		$48K Sell
5,600
-900
-14% -$8.21K ﹤0.01% 6053
2020
Q3 		$73K Sell
6,500
-6,100
-48% -$73.9K ﹤0.01% 5335
2020
Q2 		$137K Sell
12,600
-4,400
-26% -$40.3K ﹤0.01% 5309
2020
Q1 		$129K Sell
17,000
-3,600
-17% -$38K ﹤0.01% 5129
2019
Q4 		$245K Buy
20,600
+6,500
+46% +$69.3K ﹤0.01% 5013
2019
Q3 		$158K Sell
14,100
-6,600
-32% -$66.2K ﹤0.01% 5329
2019
Q2 		$213K Buy
20,700
+3,400
+20% +$36.4K ﹤0.01% 5204
2019
Q1 		$211K Sell
17,300
-15,400
-47% -$232K ﹤0.01% 5045
2018
Q4 		$505K Sell
32,700
-6,400
-16% -$129K ﹤0.01% 4117
2018
Q3 		$964K Buy
39,100
+4,700
+14% +$184K ﹤0.01% 3541
2018
Q2 		$1.54M Buy
34,400
+11,200
+48% +$398K ﹤0.01% 2921
2018
Q1 		$581K Buy
23,200
+12,300
+113% +$383K ﹤0.01% 3830
2017
Q4 		$412K Buy
10,900
+2,700
+33% +$119K ﹤0.01% 4307
2017
Q3 		$530K Buy
+8,200
New +$580K ﹤0.01% 4062

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

Citigroup's AAOI Position: Q1 2026 in Review

Citigroup increased its Applied Optoelectronics (AAOI) stake by 910% in Q1 2026, buying an estimated $8.64M and bringing the position to 150,326 shares worth $12.7M. The position accounts for 0.01% of the portfolio, ranked #1324.

Citigroup first reported a position in AAOI in Q4 2013 and has held it in 50 quarters since. The position peaked at $50.5M in Q4 2024. 375 funds tracked by Wall St. Rank hold AAOI as of Q1 2026.

  • Citigroup held 150,326 shares of Applied Optoelectronics worth $12.7M as of Q1 2026.
  • Citigroup bought 135,436 Applied Optoelectronics shares in Q1 2026, an estimated $8.64M.
  • Applied Optoelectronics made up 0.01% of Citigroup's portfolio in Q1 2026, its #1324 holding.
  • Citigroup first reported a position in Applied Optoelectronics in Q4 2013 and has held it in 50 quarters since.
  • Citigroup's Applied Optoelectronics position peaked at $50.5M in Q4 2024.
  • 375 funds tracked by Wall St. Rank held Applied Optoelectronics as of Q1 2026.

Based on Citigroup's 13F filing for Q1 2026, filed 11 May 2026.