Cliff Asness's FIX Position Overview
Cliff Asness (via Aqr Capital Management LLC) currently holds 1.02 M shares of Comfort Systems USA, Inc. (FIX) worth $951.88 M, representing 0.50% of the portfolio. First purchased in 2012-Q4, this long-term strategic position has been held for 52 quarters.
Based on 13F filings since 2013, Cliff Asness has maintained a long-term strategic position in FIX, representing a significant commitment to this investment thesis. Largest addition occurred in Q1 2025, adding 273,453 shares. Largest reduction occurred in Q1 2019, reducing 70,733 shares.
Analysis based on 13F filings available since 2013 Q2
Cliff Asness's Comfort Systems USA (FIX) Holding Value Over Time
Track share changes against reported price movement
Quarterly Comfort Systems USA (FIX) Trades by Cliff Asness
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +184,362 | Add 22.06% | 1.02 M | $933.29 |
| Q3 2025 | +53,125 | Add 6.79% | 835,560 | $812.00 |
| Q2 2025 | +252,007 | Add 47.51% | 782,435 | $535.57 |
| Q1 2025 | +273,453 | Add 106.41% | 530,428 | $311.50 |
| Q4 2024 | +51,702 | Add 25.19% | 256,975 | $424.06 |
| Q3 2024 | +62,733 | Add 44.01% | 205,273 | $388.31 |
| Q2 2024 | +66,703 | Add 87.96% | 142,540 | $304.12 |
| Q1 2024 | +46,577 | Add 159.18% | 75,837 | $317.71 |
| Q4 2023 | -3,260 | Reduce 10.02% | 29,260 | $205.67 |
| Q3 2023 | +2,224 | Add 7.34% | 32,520 | $170.41 |
| Q2 2023 | +1,009 | Add 3.45% | 30,296 | $164.20 |
| Q1 2023 | +16,410 | Add 127.44% | 29,287 | $145.96 |
| Q4 2022 | -343 | Reduce 2.59% | 12,877 | $115.08 |
| Q3 2022 | +19 | Add 0.14% | 13,220 | $97.35 |
| Q2 2022 | -409 | Reduce 3.01% | 13,201 | $83.18 |
| Q1 2022 | +1,832 | Add 15.55% | 13,610 | $88.98 |
| Q4 2021 | -5,898 | Reduce 33.37% | 11,778 | $98.91 |
| Q3 2021 | -4,814 | Reduce 21.41% | 17,676 | $71.34 |
| Q2 2021 | +2,201 | Add 10.85% | 22,490 | $78.79 |
| Q1 2021 | -34,387 | Reduce 62.89% | 20,289 | $74.77 |
| Q4 2020 | +9,568 | Add 21.21% | 54,676 | $52.66 |
| Q3 2020 | -30,543 | Reduce 40.37% | 45,108 | $51.52 |
| Q2 2020 | -16,286 | Reduce 17.71% | 75,651 | $40.75 |
| Q1 2020 | -13,694 | Reduce 12.96% | 91,937 | $36.55 |
| Q4 2019 | -42,165 | Reduce 28.53% | 105,631 | $49.85 |
| Q3 2019 | +29,198 | Add 24.62% | 147,796 | $44.23 |
| Q2 2019 | -4,579 | Reduce 3.72% | 118,598 | $50.99 |
| Q1 2019 | -70,733 | Reduce 36.48% | 123,177 | $52.39 |
| Q4 2018 | -18,126 | Reduce 8.55% | 193,910 | $43.68 |
| Q3 2018 | +5,968 | Add 2.90% | 212,036 | $56.40 |
| Q2 2018 | -9,744 | Reduce 4.52% | 206,068 | $45.80 |
| Q1 2018 | +5,512 | Add 2.62% | 215,812 | $41.25 |
| Q4 2017 | +2,545 | Add 1.23% | 210,300 | $43.65 |
| Q3 2017 | -16,538 | Reduce 7.37% | 207,755 | $35.70 |
| Q2 2017 | +6,201 | Add 2.84% | 224,293 | $37.10 |
| Q1 2017 | -49,778 | Reduce 18.58% | 218,092 | $36.65 |
| Q4 2016 | -24,948 | Reduce 8.52% | 267,870 | $33.30 |
| Q3 2016 | -31,972 | Reduce 9.84% | 292,818 | $29.31 |
| Q2 2016 | +8,073 | Add 2.55% | 324,790 | $32.57 |
| Q1 2016 | +56,703 | Add 21.81% | 316,717 | $31.77 |
| Q4 2015 | +37,695 | Add 16.96% | 260,014 | $28.42 |
| Q3 2015 | +201,811 | Add 984.06% | 222,319 | $27.26 |
| Q2 2015 | +20,508 | New Buy | 20,508 | $22.97 |
| Q4 2014 | -47,340 | Sold Out | 0 | $0.00 |
| Q3 2014 | -7,300 | Reduce 13.36% | 47,340 | $13.54 |
| Q2 2014 | +400 | Add 0.74% | 54,640 | $15.79 |
| Q1 2014 | +21,375 | Add 65.04% | 54,240 | $15.25 |
| Q2 2013 | +32,865 | Add 0.00% | 32,865 | $9.19 |
| Q4 2012 | +44,265 | Add 0.00% | 44,265 | $12.15 |
Cliff Asness's Comfort Systems USA Investment FAQs
Cliff Asness first purchased Comfort Systems USA, Inc. (FIX) in Q4 2012, acquiring 44,265 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness has held Comfort Systems USA, Inc. (FIX) for 52 quarters since Q4 2012.
Cliff Asness's largest addition to Comfort Systems USA, Inc. (FIX) was in Q1 2025, adding 530,428 shares worth $165.23 M.
According to the latest 13F filing for Q4 2025, Cliff Asness's firm, Aqr Capital Management LLC, owns 1,019,922 shares of Comfort Systems USA, Inc. (FIX), valued at approximately $951.88 M.
As of the Q4 2025 filing, Comfort Systems USA, Inc. (FIX) represents approximately 0.50% of Cliff Asness's publicly disclosed stock portfolio, making it one of their key holdings.
Cliff Asness's peak holding in Comfort Systems USA, Inc. (FIX) was 1,019,922 shares, as reported at the end of Q4 2025.