BBBDXY-9 - Intraday/ Swing

What it is
A chart-grade USD basket that outputs full O/H/L/C candles. It combines nine FX pairs using weighted log-returns and geometric aggregation, then rescales to 100 at an anchor. You can build from 1m, 1H, 4H, or D and analyze it like a normal chart (drawings, structure, bar replay, and a clean Source output for other tools).

Why another USD gauge?
A legacy EUR-heavy USD measure can, at times, behave close to an EURUSD proxy and under-represent moves versus other majors and Asia EM. A diversified basket helps capture USD dynamics beyond EUR-centric effects. This study is independent and does not rely on third-party brands.

Basket (defaults are editable in Inputs)
Pairs used: EURUSD (inverted), USDJPY, USDCAD, GBPUSD (inverted), USDMXN, USDCNH, USDCHF, AUDUSD (inverted), USDSGD.
Inverted means the pair is flipped internally so rising values reflect USD strength. Weights default to a diversified mix and can be customized.

How it works (high level)

• Sample each component on the chosen base timeframe.
  
• Compute log-returns versus the anchor, multiply by weights, sum, and exponentiate (geometric combine).
  
• Re-scale so the index equals 100 at the anchor.
  
• Optional: plot an arithmetic comparison line.
  

Base-TF and aggregation rules

• Build from timeframe: 1m, 1H, 4H, D.
  
• If chart TF is greater than base TF, aggregate up from the base TF (no down-mixing).
  
• If chart TF equals base TF, show native base candles.
  
• If chart TF is lower than base TF, sample the base TF (step-like).
  
• For intraday precision and exact wicks, choose 1m as base and view higher TFs by aggregation.
  
• For longer history with fewer requests, choose 1H, 4H, or D as base.
  

Inputs (overview)

• Build-from TF (1m, 1H, 4H, D) and a feed prefix if your broker symbols require one.
  
• Per-pair weights (editable).
  
• Anchor date and time (chart timezone) plus optional auto-rebase to first available bar if the exact anchor is missing.
  
• Arithmetic comparison line (optional).
  
• Source output selector (Open, High, Low, Close) for downstream tools.
  
• Custom candle colors.
  

How to use

• For granular intraday structure and wick accuracy, set base TF to 1m and view higher TFs by aggregation.
  
• For swing and weekly context, set base TF to 1H, 4H, or D.
  
• Keep default weights unless you have a specific reason to alter the basket.
  
• Rising index suggests USD strength versus the basket; falling index suggests USD weakness.
  

Notes and limitations

• Depends on availability and quality of the underlying FX symbols on your data feed.
  
• Indicator only; no financial advice, no alerts, no orders.
  
• No external open-source code reused.
  
• Past behavior does not guarantee future results.
  

Figure (publication image)
Top: a legacy EUR-heavy USD index on 1H. The horizontal line marks a local swing high; price stalls and rolls over beneath it.

Bottom: this diversified USD basket on 1H. The horizontal line marks the same calendar window; the advance extends differently into that zone before rolling later.
This side-by-side illustrates that a EUR-centric gauge can diverge from a diversified USD basket. Similar divergences appear at other points; the example is illustrative and not a signal.

- riseofatrader