Skip to main content

CSS LLC/IL

Position in AAOI — Applied Optoelectronics, Inc.

CIK 1103646 CHICAGO, IL

Position in AAOI

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$493,076
+$228,479 QoQ
Shares Held
3,328
+6.4% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
#298
of 480 holders
Holding Since
Mar 2020
13 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in AAOI Over Time

Shares Held

Position Value (USD)

Derivatives in AAOI

reported options exposure · as of Jun 30, 2026
CallValue
$0
CallShares
0
PutValue
$2,222,400
PutShares
15,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Communication Equipment

Technology · as of Jun 30, 2026

CSS LLC/IL holds $3,155,435 across 4 Communication Equipment names. AAOI ranks #2 (15.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 AAOI
Applied Optoelectronics, Inc.
This page
3,328 $493,076

All Filings in AAOI

Export CSV
16 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,222,400 15,000
2026-06-30 $493,076 3,328
2026-03-31 $264,597 3,128
2026-03-31 $1,268,850 15,000
2025-12-31 $1,178,268 33,800
2025-09-30 $876,434 33,800
2025-06-30 $868,322 33,800
2025-03-31 $442,080 28,800
2024-12-31 $416,518 11,300
2024-12-31 $2,712,527 73,590
2024-09-30 $161,703 11,300
2024-06-30 $93,677 11,300
2020-12-31 $298,701 35,100
2020-09-30 $394,875 35,100
2020-06-30 $381,537 35,100
2020-03-31 $228,459 30,100