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Applied Optoelectronics
AAOI

217 hedge funds and large institutions have $1.66B invested in Applied Optoelectronics in 2025 Q4 according to their latest regulatory filings, with 67 funds opening new positions, 90 increasing their positions, 47 reducing their positions, and 25 closing their positions.

New
Increased
Maintained
Reduced
Closed

168% more first-time investments, than exits

New positions opened: 67 | Existing positions closed: 25

91% more repeat investments, than reductions

Existing positions increased: 90 | Existing positions reduced: 47

61% more capital invested

Capital invested by funds: $1.03B → $1.66B (+$633M)

21% more funds holding

Funds holding: 179 → 217 (+38)

6.14% more ownership

Funds ownership: 63.69% → 69.84% (+6.1%)

0% more funds holding in top 10

Funds holding in top 10: 2 → 2 (0)

47% less call options, than puts

Call options by funds: $142M | Put options by funds: $270M

Holders
217
Holders Change
+38
Holders Change %
+21.23%
% of All Funds
2.64%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
67
Increased
90
Reduced
47
Closed
25
Calls
$142M
Puts
$270M
Net Calls
-$128M
Net Calls Change
-$39.8M

Top Buyers

Rank Fund Capital Flow
1
Invesco
Invesco
Georgia
+$103M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$65.3M
3
Jane Street
Jane Street
New York
+$49.1M
4
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$40.8M
5
Morgan Stanley
Morgan Stanley
New York
+$31M

Top Sellers

Rank Fund Capital Flow
1
Citigroup
Citigroup
New York
-$34.2M
2
Point72 Asset Management
Point72 Asset Management
Connecticut
-$29.3M
3
CCM
CloudAlpha Capital Management
Hong Kong
-$28M
4
Goldman Sachs
Goldman Sachs
New York
-$20.8M
5
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$20.7M
Name Holding Trade Value Shares
Change 		Change in
Stake
SEI Investments
51
SEI Investments
Pennsylvania
$4.31M +$3.69M +123,651 New
Swiss National Bank
52
Swiss National Bank
Switzerland
$4.07M +$400K +13,400 +13%
RC
53
Roubaix Capital
Colorado
$3.77M +$3.23M +108,275 New
Walleye Trading
54
Walleye Trading
New York
$3.58M +$488K +16,336 +19%
JG
55
Jain Global
New York
$3.51M -$2.18M -73,158 -42%
Tudor Investment Corp
56
Tudor Investment Corp
Connecticut
$3.32M -$10.6M -353,824 -79%
FMI
57
F/M Investments
District of Columbia
$3.28M +$894K +29,927 +47%
UBS AM
58
UBS AM
Illinois
$3.26M +$1.01M +33,924 +57%
Wells Fargo
59
Wells Fargo
California
$3.1M +$1.4M +46,780 +111%
ACM
60
Atika Capital Management
New York
$3.06M +$2.62M +87,657 New
Verition Fund Management
61
Verition Fund Management
Connecticut
$3.04M +$1.9M +63,584 +268%
SG Americas Securities
62
SG Americas Securities
New York
$2.97M +$1.41M +47,316 +125%
AG
63
Algert Global
California
$2.86M +$10K +335 +0.4%
Commonwealth Equity Services
64
Commonwealth Equity Services
Massachusetts
$2.82M +$2.42M +80,964 New
ZDA
65
Zweig-DiMenna Associates
New York
$2.74M +$2.34M +78,500 New
JCM
66
JAT Capital Management
Connecticut
$2.49M +$2.13M +71,500 New
RhumbLine Advisers
67
RhumbLine Advisers
Massachusetts
$2.48M -$178K -5,969 -8%
Russell Investments Group
68
Russell Investments Group
United Kingdom
$2.44M +$596K +19,966 +40%
Legal & General Group
69
Legal & General Group
United Kingdom
$2.43M +$23.4K +784 +1%
EC
70
E20 Capital
$2.34M +$2.01M +67,223 New
Walleye Capital
71
Walleye Capital
New York
$2.21M +$1.19M +39,986 +171%
DFCM
72
Dark Forest Capital Management
Puerto Rico
$2.2M +$1.89M +63,183 New
Marshall Wace
73
Marshall Wace
United Kingdom
$2.12M +$37.2K +1,245 +2%
AllianceBernstein
74
AllianceBernstein
Tennessee
$2.06M -$4.81K -161 -0.3%
California State Teachers Retirement System (CalSTRS)
75
California State Teachers Retirement System (CalSTRS)
California
$1.99M +$216K +7,237 +14%
1 2
3
4 5

AAOI Hedge Fund Activity: Q4 2025 in Review

217 of the 8,224 institutional investors tracked by Wall St. Rank reported a position in Applied Optoelectronics (AAOI) for Q4 2025, worth a combined $1.66B — up 61% from $1.03B a quarter earlier.

Buyers outnumbered sellers: 67 funds opened new AAOI positions and 25 closed out — a net gain of 42 holders — while 90 added to existing stakes and 47 trimmed.

The largest buyer was Invesco, adding an estimated $103M. The largest seller was Citigroup, cutting an estimated $34.2M.

  • 217 institutional investors held Applied Optoelectronics (AAOI) as of Q4 2025, up from 179 in Q3 2025.
  • Funds reported $1.66B of Applied Optoelectronics stock for Q4 2025, up 61% quarter-over-quarter.
  • 67 funds opened new Applied Optoelectronics positions in Q4 2025 and 25 closed out, a net change of +42 holders.
  • The largest Applied Optoelectronics buyer in Q4 2025 was Invesco, an estimated $103M added.
  • The largest Applied Optoelectronics seller in Q4 2025 was Citigroup, an estimated $34.2M sold.

Based on aggregated 13F filings for Q4 2025.