• Sep 15, 2026

  $129.24-2.70%

  Comparable computer integrated systems design companies fell 2.16% on average on the same day, with all six decliners [1], and Leidos moved down 2.70% in line with that broader group weakness.

  • 1Peer group

• Sep 14, 2026

  $132.83+3.08%

  Leidos announced it would continue managing secure connectivity for more than 650,000 Navy and Marine Corps personnel [1]. Comparable computer integrated systems design companies rose 4.26% on average that day, with all six gaining [2], while Leidos rose 3.08%, a smaller gain than the group.

  • 1Pr Newswire
  • 2Peer group

• Sep 11, 2026

  $128.86-0.53%

• Sep 10, 2026

  $129.55+1.10%

• Sep 9, 2026

  $128.14-0.85%

  Comparable Services-Computer Integrated Systems Design companies fell 2.11% on average, with 5 of 6 peers lower [1]. Leidos declined by a smaller amount than that peer average on the day [1].

  • 1Peer group

• Sep 8, 2026

  $129.24-2.86%

  Comparable computer integrated systems design companies moved -1.10% on average, with three of six falling and three rising [1]. Leidos' 2.86% decline was much steeper than that cohort move [1].

  • 1Peer group

• Sep 4, 2026

  $133.05+0.52%

Closing prices for LDOS. Summaries describe past sessions only and are not advice, a forecast or a recommendation.

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