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Ken Griffin's Comfort Systems USA, Inc. (FIX) position

Yes: as of Q1 2026, Ken Griffin holds 24K shares of FIX worth $34M (0.0% of the disclosed portfolio). Held since at least Q1 2021; that opening coverage snapshot is not counted as a purchase.
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Current value
$34M
Shares held
24K
% of portfolio
0.0%
Est. average buy price (i)
$949.42
est. since Q1 2025
Quarter-end price
$1,378.99

Estimated trade prices

Average price in quarters with purchases
$188.31
Average prices in quarters with sales
  • Q4 2025: $923.32 (60K shares sold)
  • Q2 2025: $435.60 (129K shares sold)
  • Q4 2024: $439.06 (16K shares sold)
  • Q2 2024: $317.86 (42K shares sold)
  • Q3 2023: $175.48 (414 shares sold)
  • Q2 2023: $148.71 (251K shares sold)
  • Q4 2021: $92.44 (22K shares sold)
  • Q2 2021: $81.51 (22K shares sold)

FIX price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$70$500$1,000$1,500$2,00020222023202420252026Added 20K shares (79.9%) · Q3 2021. Average closing price $74.46 · Price range $69.14–$79.1220KsharespurchasedSold 22K shares (47.9%) · Q4 2021. Average closing price $92.44 · Price range $74.06–$102.8122KsharessoldAdded 3K shares (12.2%) · Q1 2022. Average closing price $89.75 · Price range $82.68–$99.273KsharespurchasedAdded 6K shares (22.8%) · Q2 2022. Average closing price $86.01 · Price range $75.33–$92.566KsharespurchasedAdded 93K shares (287.3%) · Q3 2022. Average closing price $98.02 · Price range $84.09–$108.4493KsharespurchasedAdded 31K shares (24.7%) · Q4 2022. Average closing price $116.29 · Price range $100.76–$126.9231KsharespurchasedAdded 114K shares (73.2%) · Q1 2023. Average closing price $129.71 · Price range $111.86–$151.04114KsharespurchasedSold 251K shares (92.9%) · Q2 2023. Average closing price $148.71 · Price range $129.31–$166.30251KsharessoldSold 414 shares (2.2%) · Q3 2023. Average closing price $175.48 · Price range $159.77–$188.65414sharessoldAdded 41K shares (217.4%) · Q4 2023. Average closing price $184.77 · Price range $152.12–$209.2441KsharespurchasedAdded 21K shares (35.3%) · Q1 2024. Average closing price $255.45 · Price range $195.89–$323.2921KsharespurchasedSold 42K shares (52.4%) · Q2 2024. Average closing price $317.86 · Price range $290.73–$347.2142KsharessoldAdded 3K shares (7.8%) · Q3 2024. Average closing price $329.38 · Price range $292.14–$396.823KsharespurchasedSold 16K shares (38.3%) · Q4 2024. Average closing price $439.06 · Price range $370.50–$504.1216KsharessoldSold 129K shares (66.8%) · Q2 2025. Average closing price $435.60 · Price range $296.51–$536.21129KsharessoldAdded 5K shares (7.6%) · Q3 2025. Average closing price $677.74 · Price range $521.66–$825.185KsharespurchasedSold 60K shares (86.8%) · Q4 2025. Average closing price $923.32 · Price range $790.72–$1,024.0460KsharessoldAdded 15K shares (165.8%) · Q1 2026. Average closing price $1,267.05 · Price range $971.49–$1,470.6415Ksharespurchased← Earlier —1 sell
Average closing price · filing quarter
$1,267.05
Price range · filing quarter
$971.49 – $1,470.64
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +15K +$19M +165.8% 24K May 15, 2026
Q4 2025 Reduced −60K −$55M −86.8% 9K Feb 17, 2026
Q3 2025 Added +5K +$3.3M +7.6% 69K Nov 14, 2025
Q2 2025 Reduced −129K −$56M −66.8% 64K Aug 14, 2025
Q1 2025 First covered – – – 194K May 15, 2025
Q4 2024 Reduced −16K −$7.0M −38.3% 26K Feb 14, 2025
Q3 2024 Added +3K +$991K +7.8% 41K Nov 14, 2024
Q2 2024 Reduced −42K −$13M −52.4% 38K Aug 14, 2024
Q1 2024 Added +21K +$5.4M +35.3% 81K May 15, 2024
Q4 2023 Added +41K +$7.5M +217.4% 60K Feb 14, 2024
Q3 2023 Reduced −414 −$73K −2.2% 19K Nov 14, 2023
Q2 2023 Reduced −251K −$37M −92.9% 19K Aug 14, 2023
Q1 2023 Added +114K +$15M +73.2% 270K May 15, 2023
Q4 2022 Added +31K +$3.6M +24.7% 156K Feb 14, 2023
Q3 2022 Added +93K +$9.1M +287.3% 125K Nov 14, 2022
Q2 2022 Added +6K +$514K +22.8% 32K Aug 15, 2022
Q1 2022 Added +3K +$256K +12.2% 26K May 16, 2022
Q4 2021 Reduced −22K −$2.0M −47.9% 23K Feb 14, 2022
Q3 2021 Added +20K +$1.5M +79.9% 45K Nov 15, 2021
Q2 2021 Reduced −22K −$1.8M −46.4% 25K Aug 16, 2021
Q1 2021 First covered – – – 47K May 21, 2021
Data through Q1 2026 · filed May 15, 2026
21 grouped rows from 21 quarters

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Common questions

Does Ken Griffin own FIX?

Yes. As of Q1 2026, Ken Griffin disclosed 24K shares of FIX, worth $34M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy FIX?

Ken Griffin held FIX since at least Q1 2021, when this filing coverage begins; the opening snapshot is not a disclosed purchase. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell FIX?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in FIX. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of FIX does Ken Griffin own?

Ken Griffin disclosed 24K shares of FIX as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for FIX?

Ken Griffin began building the FIX position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.