Jane Street
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Jane Street’s Waters Corp WAT Stock Holding History

Jane Street’s Portfolio WAT Stock Details WAT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.79M Sell
12,760
-4,707
-27% -$1.61M ﹤0.01% 3775
2026
Q1 		$5.2M Buy
17,467
+3,667
+27% +$1.25M ﹤0.01% 3451
2025
Q4 		$5.24M Sell
13,800
-6,600
-32% -$2.43M ﹤0.01% 3153
2025
Q3 		$6.12M Buy
20,400
+19,600
+2,450% +$5.91M ﹤0.01% 3122
2025
Q2 		$279K Buy
+800
New +$275K ﹤0.01% 7990
2025
Q1 		– Sell
-1,400
Closed -$519K – 10742
2024
Q4 		$519K Buy
+1,400
New +$512K ﹤0.01% 6703
2024
Q2 		– Sell
-5,800
Closed -$2M – 10265
2024
Q1 		$2M Sell
5,800
-14,600
-72% -$4.8M ﹤0.01% 4130
2023
Q4 		$6.72M Buy
20,400
+8,000
+65% +$2.21M ﹤0.01% 2441
2023
Q3 		$3.4M Buy
12,400
+2,200
+22% +$608K ﹤0.01% 3180
2023
Q2 		$2.72M Buy
10,200
+8,600
+538% +$2.39M ﹤0.01% 3665
2023
Q1 		$495K Sell
1,600
-3,800
-70% -$1.23M ﹤0.01% 6336
2022
Q4 		$1.85M Sell
5,400
-3,600
-40% -$1.14M ﹤0.01% 3981
2022
Q3 		$2.43M Sell
9,000
-6,000
-40% -$1.92M ﹤0.01% 3855
2022
Q2 		$4.96M Sell
15,000
-5,300
-26% -$1.68M ﹤0.01% 2665
2022
Q1 		$6.3M Buy
20,300
+5,100
+34% +$1.66M ﹤0.01% 2654
2021
Q4 		$5.66M Buy
15,200
+5,900
+63% +$2.06M ﹤0.01% 2662
2021
Q3 		$3.32M Buy
9,300
+7,400
+389% +$2.9M ﹤0.01% 3467
2021
Q2 		$657K Sell
1,900
-1,700
-47% -$538K ﹤0.01% 6721
2021
Q1 		$1.02M Buy
+3,600
New +$983K ﹤0.01% 5408
2020
Q4 		– Sell
-6,700
Closed -$1.31M – 8182
2020
Q3 		$1.31M Buy
6,700
+1,200
+22% +$249K ﹤0.01% 3654
2020
Q2 		$992K Buy
+5,500
New +$1.04M ﹤0.01% 4069
2019
Q1 		– Sell
-1,500
Closed -$283K – 5722
2018
Q4 		$283K Buy
+1,500
New +$285K ﹤0.01% 4131
2015
Q3 		– Sell
-2,900
Closed -$372K – 4216
2015
Q2 		$372K Buy
+2,900
New +$376K ﹤0.01% 2594

Other funds holding WAT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Fundsmith LLP
Fundsmith LLP London, United Kingdom $13.6B AUM 7.6% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Jane Street's WAT Position: Q2 2026 in Review

Jane Street increased its Waters Corp (WAT) stake by 91% in Q2 2026, buying an estimated $671K and bringing the position to 4,119 shares worth $1.54M. The position accounts for ﹤0.01% of the portfolio, ranked #5635.

Jane Street first reported a position in WAT in Q2 2014 and has held it in 38 quarters since. The position peaked at $22.8M in Q4 2025. 1,181 funds tracked by Wall St. Rank hold WAT as of Q2 2026.

  • Jane Street held 4,119 shares of Waters Corp worth $1.54M as of Q2 2026.
  • Jane Street bought 1,966 Waters Corp shares in Q2 2026, an estimated $671K.
  • Waters Corp made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #5635 holding.
  • Jane Street first reported a position in Waters Corp in Q2 2014 and has held it in 38 quarters since.
  • Jane Street's Waters Corp position peaked at $22.8M in Q4 2025.
  • 1,181 funds tracked by Wall St. Rank held Waters Corp as of Q2 2026.

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