SlackQuant Systems
Multi-Asset Strategy

Forecast-to-Rank Allocation (F2R)

Machine-Learning Cross-Asset Portfolio Strategy
Public liveMonthly decision cycleConventional ML + Chronos-2 · rank-based portfolio formation
System role

Forecast first, rank second, allocate last

F2R is a live cross-asset Portfolio Strategy System that separates forecasting from portfolio choice. Conventional supervised models and Chronos-2 produce distinct forecasts, which are brought into a common cross-sectional ranking process before the portfolio is formed.

F2R does not treat raw forecast magnitudes as portfolio weights. Forecasts are first converted into comparable relative-opportunity ranks; a separate allocation rule then turns the final ordering into the monthly multi-asset portfolio. This keeps the forecasting logic separate from the rules that determine the portfolio.

Heterogeneous
Forecast architecture
Chronos-2
Pretrained time-series model
Rank
Portfolio translation
Monthly
Decision cycle
Relationship to PDS. F2R remains an independent Portfolio Strategy System and currently serves as an admitted Active Core provider within PDS. PDS governs provider admission and portfolio integration; it does not redefine the F2R strategy.
Strategy architecture

Heterogeneous forecasts, one common ranking process

01 · Forecast

Combine distinct forecasting views

Conventional supervised models and Chronos-2 process price history through different representations before their forecasts enter the common ranking process.

02 · Rank

Normalize forecasts through rank consensus

Heterogeneous outputs are translated into a comparable cross-asset ordering rather than mixed as raw forecast scales or used directly as portfolio weights.

03 · Allocate

Translate ranks into the portfolio target

A separate allocation rule maps the final ordering into the monthly model portfolio under a defined timing, turnover, cost, and accounting process.

Public disclosure names the forecasting technologies and the decision architecture. Exact feature horizons, detailed lookback and sequence settings, model-combination settings, and low-level integration mechanics remain protected implementation details.
Live operational evidence

Live Completed Performance

Updated with each F2R release. The chart and statistics show completed performance for the current F2R model. Current MTD and Preview are kept separate and are excluded until the holding month is complete.

Cumulative Performance

2017-05-01 → 2026-09-30 · completed through 2026-09-30 · current MTD excluded

F2R · current canonical model
0.7x1.8x2.9x4.0x5.0x2017-052022-012026-09

Recent Completed Monthly Returns

Recent 12 completed months · 2025-10 → 2026-09 · current MTD and Preview excluded

F2R · current canonical model
15%7.5%0%-7.5%-15%2025-10 · F2R · current canonical model: 3.90%Oct '252025-11 · F2R · current canonical model: -0.45%Nov '252025-12 · F2R · current canonical model: 2.43%Dec '252026-01 · F2R · current canonical model: 6.98%Jan '262026-02 · F2R · current canonical model: 2.88%Feb '262026-03 · F2R · current canonical model: -8.65%Mar '262026-04 · F2R · current canonical model: 13.80%Apr '262026-05 · F2R · current canonical model: 8.24%May '262026-06 · F2R · current canonical model: -3.19%Jun '262026-07 · F2R · current canonical model: -7.17%Jul '262026-08 · F2R · current canonical model: 9.69%Aug '262026-09 · F2R · current canonical model: -0.08%Sep '26
17.78%
Current-model CAGR
1.02
Sharpe (Rf=0)
-21.97%
Maximum drawdown
17.68%
Annualized volatility
SeriesCumulativeCAGRVolSharpeMDDCalmar
F2R · current canonical model366.91%17.78%17.68%1.02-21.97%0.81
Performance boundary: Completed history only. Current MTD and Preview are excluded.
Frozen research snapshot

The model-adoption study remains a separate retrospective record

Chronos-2 adoption evidence remains citable as a frozen research counterfactual. It is preserved for research provenance and no longer serves as the primary performance evidence for the live F2R System page.

17.13%
Selected hybrid CAGR
0.987
Selected hybrid Sharpe
58 / 112
Changed Top-4 months vs. incumbent
+2.53pp
Rank vs. standardized integration CAGR difference
Public model-adoption study · retrospective historical research evidence. This is a retrospective technology counterfactual, not a live F2R performance period. The dates above belong to the frozen model-adoption study; current Official, Preview, and completed production performance are maintained separately by the live F2R release workflow. The historical hybrid configuration is research evidence and does not disclose the current protected production recipe.
Live operation

Official and Preview are shown as different operating states

The standalone F2R dashboard publishes the current official monthly target alongside a separately labeled intramonth preview. The preview is indicative only: it may change before month-end, is not executed, and is kept outside completed performance. Historical research results and current operation are also shown separately.

The public surface shows formal system identity, Official and Preview states, portfolio history, related research, and the deployment package. Exact feature horizons, sequence settings, model-combination settings, local operating paths, and unpromoted research branches remain internal.
Related research

Research papers document distinct stages of the F2R research record

The earlier information-set study tests whether historical-vintage macro information adds decision value beyond price information under matched forecasting, ranking, portfolio, and timing rules. The newer model-adoption study keeps the portfolio-side price-data domain and portfolio interface fixed while asking how Chronos-2 changes rankings, Top-4 decisions, and historical portfolio outcomes.

Both papers document earlier stages of the F2R research program. They show the research path that informed the F2R design family, while the live system is maintained separately. Model-combination settings reported in a paper describe that research configuration and should not be read as the current production recipe.

Quantitative Methods

Methods used in this system

These companion articles explain methods used directly in the system or needed to interpret its validation and outputs.

QM001 · Forecast Evaluation · Foundation

Out-of-Sample Forecast Evaluation

Defines the out-of-sample information boundary shared by F2R's heterogeneous forecasting layer before conventional ML and Chronos-2 views are converted into relative ranks.

QM002 · Forecast Evaluation · Foundation

Rolling vs Expanding Windows

Explains the time-ordered estimation design used by F2R's conventional supervised models; Chronos-2 is evaluated through a separate inference path rather than sharing the same fitting window.

QM003 · Data & Research Design · Foundation

Look-Ahead Bias and Data Leakage

Defines leakage controls for F2R's point-in-time inputs, supervised-model training, pretrained-model evaluation, current-model reconstruction, and rank-based portfolio validation.

QM007 · Portfolio Methods · Foundation

Portfolio Backtesting and Rebalancing

Explains how F2R's rank-based monthly target becomes a continuous holding-period wealth path under explicit execution timing and between-rebalance weight drift.

QM009 · Portfolio Methods · Intermediate

Turnover, Transaction Costs, and Net Performance

Explains the drift-aware turnover and transaction-cost conventions used to translate F2R's monthly model-portfolio changes into net performance.

QM013 · Portfolio Methods · Intermediate

Benchmark-Relative Portfolio Evaluation

Defines benchmark-relative measures used to judge the portfolio value of F2R's heterogeneous Forecast-to-Rank decision process beyond same-universe and external comparators.

QM019 · Machine Learning · Intermediate

Regularized Linear Models: Ridge, Lasso, and Elastic Net

Defines the regularized linear-model family that anchors F2R's conventional supervised forecasting lane, including scaling and tuning controls for correlated predictors.

QM020 · Machine Learning · Advanced

Time-Series Model Selection and Hyperparameter Tuning

Defines chronological model-selection and hyperparameter-tuning discipline used when F2R compares conventional supervised candidates without leaking future information.

QM027 · Portfolio Methods · Intermediate

Cross-Sectional Ranking, Top-K Selection, and Hold Buffers

Explains the rank-to-portfolio translation used after heterogeneous forecasts enter a common rank-based process, including Top-K selection, persistence, and the distinction between ranks and portfolio weights.

QM024 · Machine Learning · Intermediate

Forecast Combination and Model Averaging

Explains how heterogeneous predictive views can be combined or aggregated without confusing forecast weights, forecast scales, rank aggregation, and downstream portfolio weights.

QM025 · AI Foundation Models · Advanced

Pretrained Time-Series Foundation Models

Defines the evaluation boundary for Chronos-2 and other pretrained time-series foundation models, separating inference-time information from pretraining knowledge and historical-evaluation claims.

Browse the Quantitative Methods library →