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Python and Quant Finance Focus
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Python and Quant Finance Focus

MediumSQL · PostgreSQL

Problem

Explain how your experience in quantitative finance and Python coding prepares you for WorldQuant’s research workflow.

For this SQL exercise, use the supplied researcher, research run, and validation records to identify qualifying completed research runs.

Output

  1. One row per qualifying researcher’s latest completed run.
  2. Columns: researcher_name, run_id, submitted_at, oos_sharpe, prior_oos_sharpe, sharpe_change, validation_score, and leakage_breaches.
  3. Include only runs meeting the supplied quality thresholds, ordered by oos_sharpe descending and researcher_name ascending as the tie-breaker.

Schema

researchers
ColumnTypeDescription
researcher_idPKINTUnique researcher identifier
researcher_nameVARCHAR(100)Researcher display name
research_areaVARCHAR(100)Primary quantitative research area
research_runs
ColumnTypeDescription
run_idPKINTUnique research run identifier
researcher_idINTResearcher who submitted the run
submitted_atDATERun submission date
statusVARCHAR(20)Run processing status
python_versionVARCHAR(20)Python version used by the run
validation_metrics
ColumnTypeDescription
run_idPKINTValidated research run identifier
oos_sharpeDECIMAL(6,3)Out-of-sample Sharpe ratio
validation_scoreDECIMAL(6,3)Validation quality score
leakage_breachesINTDetected data leakage breach count
turnoverDECIMAL(6,3)Portfolio turnover ratio
Tablesresearchersresearch_runsvalidation_metrics
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