Jane Street
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Jane Street’s CSP Inc CSPI Stock Holding History

Jane Street’s Portfolio CSPI Stock Details CSPI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$287K Buy
+36,139
New +$330K ﹤0.01% 9306
2025
Q2 		– Sell
-27,640
Closed -$424K – 9790
2025
Q1 		$424K Buy
27,640
+11,703
+73% +$200K ﹤0.01% 7167
2024
Q4 		$256K Buy
+15,937
New +$230K ﹤0.01% 7990
2024
Q3 		– Sell
-26,220
Closed -$391K – 9666
2024
Q2 		$391K Buy
26,220
+287
+1% +$4.27K ﹤0.01% 7409
2024
Q1 		$479K Buy
+25,933
New +$415K ﹤0.01% 6754

Other funds holding CSPI

VWA
Visionary Wealth Advisors O'fallon, Illinois $2.53B AUM 24.4% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
SAI
Savvy Advisors Inc New York $4.71B AUM 25.36% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
IWC
Integrated Wealth Concepts Waltham, Massachusetts $20.5B AUM 24.45% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

Jane Street's CSPI Position: Q2 2026 in Review

Jane Street opened a new position in CSP Inc (CSPI) in Q2 2026: 36,139 shares worth $287K. The stake represents ﹤0.01% of the portfolio and ranks #9306 among its holdings. This is a return to the name: Jane Street previously reported a position in CSPI as recently as Q1 2025.

Jane Street first reported a position in CSPI in Q1 2024 and has held it in 5 quarters since. The position peaked at $479K in Q1 2024. 44 funds tracked by Wall St. Rank hold CSPI as of Q2 2026.

  • Jane Street held 36,139 shares of CSP Inc worth $287K as of Q2 2026.
  • CSP Inc was a new Jane Street position in Q2 2026.
  • CSP Inc made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9306 holding.
  • Jane Street first reported a position in CSP Inc in Q1 2024 and has held it in 5 quarters since.
  • Jane Street's CSP Inc position peaked at $479K in Q1 2024.
  • 44 funds tracked by Wall St. Rank held CSP Inc as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.