Skip to content
CN2.DEVBUKYA NARESH
BACKTESTINGDOCUMENTEDENTRY 02 / 08

QUESTION

Does determinism in the backtest harness measurably reduce false-positive strategies?

  1. 01

    HYPOTHESIS

    If identical inputs produce identical outputs, parameters tuned to noise become identifiable as unstable rather than performant.

  2. 02

    METHOD

    Deterministic replay of the same strategy configuration across repeated runs; comparison of results under perturbed data ordering with fixed tie-breaking rules.

  3. 03

    EVIDENCE

    Apex Quant Engine backtests reproduce byte-identically from raw bars to equity curve; 5,867-trade master-fund runs regenerate exactly.

  4. 04

    RESULT

    Deterministic harnesses make an entire class of irreproducible 'results' impossible to mistake for findings.

  5. 05

    LIMITATION

    Determinism addresses reproducibility, not statistical overfitting to a single historical window — that requires out-of-sample discipline.

  6. 06

    CONCLUSION

    Determinism is necessary but not sufficient: it removes accidental false positives so real statistical work can begin.

EVIDENCE SOURCE

APEX QUANT ENGINE

A complete research-to-execution pipeline where every simulated result is reproducible by construction.

METHOD — BACKTEST · SIMULATION