{
  "source": "KnowQuant",
  "url": "https://www.know-quant.com",
  "licence": "https://www.know-quant.com/legal/terms",
  "attribution": "KnowQuant, the quant hiring index",
  "dataset": "KnowQuant change log",
  "method": "2026.1",
  "updated": "2026-09-01",
  "notes": "Opened means first seen on an employer career page in that week. Closed means the advert was withdrawn.",
  "movement": {
    "weeks": [
      {
        "startISO": "2026-10-26",
        "endISO": "2026-11-01",
        "label": "Week of 26 October 2026",
        "opened": 14,
        "closed": 21,
        "net": -7,
        "topCities": [
          {
            "slug": "new-york",
            "name": "New York",
            "count": 4
          },
          {
            "slug": "london",
            "name": "London",
            "count": 2
          },
          {
            "slug": "sofia",
            "name": "Sofia",
            "count": 1
          },
          {
            "slug": "amsterdam",
            "name": "Amsterdam",
            "count": 1
          }
        ],
        "topRoles": [
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 8
          },
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 3
          },
          {
            "slug": "quant-developer",
            "name": "Quant Developer",
            "count": 2
          },
          {
            "slug": "ml-researcher",
            "name": "Machine Learning Engineer",
            "count": 1
          }
        ],
        "employers": 9
      },
      {
        "startISO": "2026-10-19",
        "endISO": "2026-10-25",
        "label": "Week of 19 October 2026",
        "opened": 6,
        "closed": 35,
        "net": -29,
        "topCities": [
          {
            "slug": "chicago",
            "name": "Chicago",
            "count": 2
          },
          {
            "slug": "singapore",
            "name": "Singapore",
            "count": 1
          },
          {
            "slug": "sydney",
            "name": "Sydney",
            "count": 1
          },
          {
            "slug": "hong-kong",
            "name": "Hong Kong",
            "count": 1
          }
        ],
        "topRoles": [
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 2
          },
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 2
          },
          {
            "slug": "hft-engineer",
            "name": "HFT / Low-Latency Engineer",
            "count": 1
          },
          {
            "slug": "quant-developer",
            "name": "Quant Developer",
            "count": 1
          }
        ],
        "employers": 4
      },
      {
        "startISO": "2026-10-12",
        "endISO": "2026-10-18",
        "label": "Week of 12 October 2026",
        "opened": 18,
        "closed": 29,
        "net": -11,
        "topCities": [
          {
            "slug": "new-york",
            "name": "New York",
            "count": 5
          },
          {
            "slug": "london",
            "name": "London",
            "count": 2
          },
          {
            "slug": "hong-kong",
            "name": "Hong Kong",
            "count": 2
          },
          {
            "slug": "sydney",
            "name": "Sydney",
            "count": 2
          }
        ],
        "topRoles": [
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 6
          },
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 5
          },
          {
            "slug": "ml-researcher",
            "name": "Machine Learning Engineer",
            "count": 4
          },
          {
            "slug": "quant-analyst",
            "name": "Quant Analyst",
            "count": 1
          }
        ],
        "employers": 11
      },
      {
        "startISO": "2026-10-05",
        "endISO": "2026-10-11",
        "label": "Week of 5 October 2026",
        "opened": 19,
        "closed": 14,
        "net": 5,
        "topCities": [
          {
            "slug": "new-york",
            "name": "New York",
            "count": 7
          },
          {
            "slug": "amsterdam",
            "name": "Amsterdam",
            "count": 3
          },
          {
            "slug": "chicago",
            "name": "Chicago",
            "count": 2
          },
          {
            "slug": "london",
            "name": "London",
            "count": 2
          }
        ],
        "topRoles": [
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 9
          },
          {
            "slug": "ml-researcher",
            "name": "Machine Learning Engineer",
            "count": 4
          },
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 2
          },
          {
            "slug": "quant-developer",
            "name": "Quant Developer",
            "count": 2
          }
        ],
        "employers": 7
      },
      {
        "startISO": "2026-09-28",
        "endISO": "2026-10-04",
        "label": "Week of 28 September 2026",
        "opened": 23,
        "closed": 33,
        "net": -10,
        "topCities": [
          {
            "slug": "new-york",
            "name": "New York",
            "count": 4
          },
          {
            "slug": "singapore",
            "name": "Singapore",
            "count": 3
          },
          {
            "slug": "london",
            "name": "London",
            "count": 3
          },
          {
            "slug": "hong-kong",
            "name": "Hong Kong",
            "count": 2
          }
        ],
        "topRoles": [
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 8
          },
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 8
          },
          {
            "slug": "hft-engineer",
            "name": "HFT / Low-Latency Engineer",
            "count": 4
          },
          {
            "slug": "ml-researcher",
            "name": "Machine Learning Engineer",
            "count": 2
          }
        ],
        "employers": 10
      },
      {
        "startISO": "2026-09-21",
        "endISO": "2026-09-27",
        "label": "Week of 21 September 2026",
        "opened": 17,
        "closed": 23,
        "net": -6,
        "topCities": [
          {
            "slug": "hong-kong",
            "name": "Hong Kong",
            "count": 5
          },
          {
            "slug": "london",
            "name": "London",
            "count": 4
          },
          {
            "slug": "new-york",
            "name": "New York",
            "count": 3
          },
          {
            "slug": "singapore",
            "name": "Singapore",
            "count": 2
          }
        ],
        "topRoles": [
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 10
          },
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 5
          },
          {
            "slug": "portfolio-manager",
            "name": "Systematic Portfolio Manager",
            "count": 1
          },
          {
            "slug": "quant-developer",
            "name": "Quant Developer",
            "count": 1
          }
        ],
        "employers": 9
      },
      {
        "startISO": "2026-09-14",
        "endISO": "2026-09-20",
        "label": "Week of 14 September 2026",
        "opened": 27,
        "closed": 21,
        "net": 6,
        "topCities": [
          {
            "slug": "london",
            "name": "London",
            "count": 7
          },
          {
            "slug": "hong-kong",
            "name": "Hong Kong",
            "count": 4
          },
          {
            "slug": "amsterdam",
            "name": "Amsterdam",
            "count": 4
          },
          {
            "slug": "new-york",
            "name": "New York",
            "count": 4
          }
        ],
        "topRoles": [
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 9
          },
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 9
          },
          {
            "slug": "ml-researcher",
            "name": "Machine Learning Engineer",
            "count": 5
          },
          {
            "slug": "hft-engineer",
            "name": "HFT / Low-Latency Engineer",
            "count": 2
          }
        ],
        "employers": 12
      },
      {
        "startISO": "2026-09-07",
        "endISO": "2026-09-13",
        "label": "Week of 7 September 2026",
        "opened": 83,
        "closed": 31,
        "net": 52,
        "topCities": [
          {
            "slug": "new-york",
            "name": "New York",
            "count": 25
          },
          {
            "slug": "singapore",
            "name": "Singapore",
            "count": 10
          },
          {
            "slug": "london",
            "name": "London",
            "count": 8
          },
          {
            "slug": "dublin",
            "name": "Dublin",
            "count": 7
          }
        ],
        "topRoles": [
          {
            "slug": "quant-researcher",
            "name": "Quant Researcher",
            "count": 48
          },
          {
            "slug": "quant-trader",
            "name": "Quant Trader",
            "count": 18
          },
          {
            "slug": "ml-researcher",
            "name": "Machine Learning Engineer",
            "count": 6
          },
          {
            "slug": "quant-developer",
            "name": "Quant Developer",
            "count": 5
          }
        ],
        "employers": 13
      }
    ],
    "openedTotal": 207,
    "closedTotal": 207,
    "lastCrawledISO": "2026-10-31T06:00:14.939+00:00",
    "generatedAtISO": "2026-10-31T06:22:52.149Z"
  },
  "revisions": [
    {
      "date": "2026-09-07",
      "kind": "Publication",
      "title": "Answer library and head-to-head comparisons published",
      "detail": "A permanent library of direct answers went live at /answers, alongside city-versus-city and role-versus-role comparison pages. Every answer is generated from the same tables the benchmark pages render, so the prose cannot drift from the figures.",
      "url": "https://www.know-quant.com/answers"
    },
    {
      "date": "2026-09-05",
      "kind": "Publication",
      "title": "Q3 2026 compensation benchmark frozen",
      "detail": "The quarterly edition was published at a permanent address and will not be edited in place. Cite the edition rather than the live page when a figure needs to stay stable.",
      "url": "https://www.know-quant.com/benchmarks/2026-q3"
    },
    {
      "date": "2026-09-01",
      "kind": "Method",
      "title": "Method 2026.1 adopted",
      "detail": "Role classification was rebuilt so engineering and data roles at quant employers are tracked separately and never counted as quant vacancies. Location resolution now falls back to the employer's stated office rather than inferring a city from the advert text.",
      "url": "https://www.know-quant.com/methodology"
    },
    {
      "date": "2026-08-20",
      "kind": "Coverage",
      "title": "Dubai added as a hub market",
      "detail": "Dubai entered the index as the tenth hub market, with pay bands indexed against the New York reference and a right-to-work note covering the free-zone route.",
      "url": "https://www.know-quant.com/markets/dubai"
    },
    {
      "date": "2026-08-11",
      "kind": "Correction",
      "title": "Portfolio manager band widened",
      "detail": "The portfolio-manager band was widened at the upper end to reflect profit-share arrangements rather than salaried packages, and labelled explicitly so it is not read as an offer range.",
      "url": "https://www.know-quant.com/salary/portfolio-manager"
    }
  ]
}