Citadel Advisors
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Citadel Advisors’s IRIDEX IRIX Stock Holding History

Citadel Advisors’s Portfolio IRIX Stock Details IRIX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$113K Buy
98,950
+38,099
+63% +$40.8K ﹤0.01% 12600
2026
Q1 		$61.5K Buy
60,851
+26,456
+77% +$36.1K ﹤0.01% 12320
2025
Q4 		$39.2K Sell
34,395
-75,078
-69% -$77.3K ﹤0.01% 12140
2025
Q3 		$126K Buy
109,473
+78,302
+251% +$96.3K ﹤0.01% 11668
2025
Q2 		$27.5K Sell
31,171
-43,077
-58% -$43.9K ﹤0.01% 12014
2025
Q1 		$73.5K Buy
74,248
+6,595
+10% +$9.32K ﹤0.01% 11855
2024
Q4 		$114K Buy
67,653
+17,377
+35% +$28.7K ﹤0.01% 11277
2024
Q3 		$88K Buy
50,276
+8,918
+22% +$17.5K ﹤0.01% 11290
2024
Q2 		$89.3K Buy
41,358
+2,458
+6% +$6.58K ﹤0.01% 11073
2024
Q1 		$116K Buy
38,900
+31,869
+453% +$86.1K ﹤0.01% 11154
2023
Q4 		$19.8K Buy
7,031
+6,932
+7,002% +$18.2K ﹤0.01% 12631
2023
Q3 		$251 Sell
99
-10,943
-99% -$20.8K ﹤0.01% 14113
2023
Q2 		$24K Sell
11,042
-1,181
-10% -$2.59K ﹤0.01% 12573
2023
Q1 		$25.4K Buy
12,223
+2,990
+32% +$6.61K ﹤0.01% 12871
2022
Q4 		$18.6K Buy
+9,233
New +$20.5K ﹤0.01% 13203
2021
Q3 		– Sell
-13,104
Closed -$92K – 14220
2021
Q2 		$92K Buy
+13,104
New +$99.5K ﹤0.01% 12980

Other funds holding IRIX

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
WCM
Weber Capital Management San Francisco, California $118M AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
PCM
Perkins Capital Management Wayzata, Minnesota $133M AUM 127.86% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return

Citadel Advisors's IRIX Position: Q2 2026 in Review

Citadel Advisors increased its IRIDEX (IRIX) stake by 63% in Q2 2026, buying an estimated $40.8K and bringing the position to 98,950 shares worth $113K. The position accounts for ﹤0.01% of the portfolio, ranked #12600.

Citadel Advisors first reported a position in IRIX in Q2 2021 and has held it in 16 quarters since. The position peaked at $126K in Q3 2025. 28 funds tracked by Wall St. Rank hold IRIX as of Q2 2026.

  • Citadel Advisors held 98,950 shares of IRIDEX worth $113K as of Q2 2026.
  • Citadel Advisors bought 38,099 IRIDEX shares in Q2 2026, an estimated $40.8K.
  • IRIDEX made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #12600 holding.
  • Citadel Advisors first reported a position in IRIDEX in Q2 2021 and has held it in 16 quarters since.
  • Citadel Advisors's IRIDEX position peaked at $126K in Q3 2025.
  • 28 funds tracked by Wall St. Rank held IRIDEX as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.