Function Walkthrough

How a study is built.

A step-by-step look at how raw intraday data becomes a conditional probability study. Example: LF → IB High Break.

1

Raw Data

Ingest tick, 1-second, or bar data for all sessions.

2

Session Segmentation

Split data by session and timezone rules.

3

Event Detection

Find the first break satisfying the event definition.

4

Rule Evaluation

Apply context and qualifying filters.

5

Outcome Measurement

Measure target, stop, and excursion behavior.

6

Aggregation

Compile all events into summary statistics.

7

Final Probability

Publish the study with counts and limitations.

Example Study

LF → IB High Break → RTH +10 pts

Condition: first break above opening range high during a Low-First session.
Outcome: price trades at least +10.0 points above IB High at any time during RTH.

Study Summary

Probability63.4%
Sample Size742 days
Expectancy+1.42 pts
Median MFE+11.8 pts
Pullback Rate (≥ 10 pts)54.2%

Raw Data

~2.4B rows/day raw feed, reduced into study-usable sessions after parsing and normalization.

Session Segmentation

Trading day segmented into LF, RTH, and ETH windows based on a fixed exchange calendar.

Event Detection

Identify instances where the first valid break above the IB High occurs within the LF session.

Rule Evaluation

Require the event to occur within the study window and reject duplicates or invalid timing.

Outcome Measurement

Track whether price reaches +10 pts above IB High before the RTH session ends.

Aggregation

Aggregate across all valid sessions and compute probability, distribution, and R-results.

Integrity Checks
CheckPurposeStatus
Duplicate RemovalRemove exact duplicate timestamps and prices.Pass
Timestamp OrderingEnsure strict chronological order within each instrument.Pass
Lookahead ProtectionAll rules use only data available at event time.Pass
Session Boundary ValidationVerify session windows align with exchange calendar.Pass
Sample Threshold CheckEnsure minimum event count for reliability.742 days ≥ 200
From Study to Insight

Raw Outputs

Event logs, outcomes, MAE/MFE paths, distributions.

Aggregation Engine

Compute probabilities, confidence intervals, and robustness metrics.

Result Summary

Present the concise probability, expectancy, and context.

Decision Context

Compare across studies, sessions, and regimes.

Related Studies

LF → IB Low Break → RTH -10 pts

Placeholder probability: 58.7% across 812 days.

View Study →

ONH Break → RTH +10 pts

Placeholder probability: 54.2% across 389 days.

View Study →

Pullback ≥ 10 pts → RTH continuation

Placeholder probability: 61.3% across 654 days.

View Study →
Educational research only. Not financial advice.