Trading Chart Logo Waterfall Bubble Chart Infographic

Data visualization infographic titled "Waterfall Chart" using a BUBBLE CHART as the dominant visual element: a 3D scatter-style bubble chart that visually contrasts positive vs negative contribution stages in a waterfall-style story. Editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout, with Reuters / Economist editorial restraint adapted to a dark mode neon palette. Compose a clean, high-contrast infographic on a charcoal-black background with neon cyan, electric blue, magenta, lime, and amber accents; subtle gridlines; crisp white typography; sharp axis labels and tick marks all in English.

Main chart: a large central bubble chart with clear X-axis label "Step in Sequence", Y-axis label "Net Impact", and a visual depth cue / size legend labeled "Magnitude". Use 8 plotted bubbles representing a waterfall-like progression of gains and losses, with realistic illustrative values: "Start" 100, "Gain A" +28, "Loss B" -18, "Gain C" +22, "Loss D" -31, "Gain E" +16, "Loss F" -9, "End" 108. Position bubbles so the contrast is obvious: positive stages clustered above zero in neon cyan/lime, negative stages below zero in neon magenta/amber, larger bubbles for bigger absolute impacts. Add thin connector hints or sequence numbering so the viewer understands the waterfall logic while the bubble chart remains the dominant form. Include a compact legend with labels "Positive contribution", "Negative contribution", and "Bubble size = absolute change". Ensure full honest scale with zero baseline visible and no misleading axis truncation or scale manipulation.

Add 4 key insight callouts around the chart, each with a small icon, a headline number, and a short interpretation in English:
1. Icon: upward arrow. Headline: "Largest Gain: +28". Interpretation: "The strongest positive step offsets earlier weakness." 
2. Icon: downward arrow. Headline: "Largest Loss: -31". Interpretation: "A single negative move creates the sharpest contrast in the sequence." 
3. Icon: balance scale. Headline: "Net Change: +8". Interpretation: "Despite volatility, the ending level finishes above the start." 
4. Icon: cluster dots. Headline: "3 Gains vs 3 Losses". Interpretation: "Similar event counts, but unequal magnitudes drive the final outcome." 

Include small supporting labels directly on or near bubbles in English: "Start", "Gain A", "Loss B", "Gain C", "Loss D", "Gain E", "Loss F", "End", and mark metric annotations such as "+28", "-18", "+22", "-31", "+16", "-9", all clearly readable. Add subtle neon glow only as an accent, keeping the layout credible and publication-grade rather than flashy.

Bottom strip: a small source / data-note bar in English reading "Data note: Illustrative example. Figures shown are illustrative and not sourced from an external dataset." Also include a small note "Values labeled illustrative unless user-supplied sourced data is provided." 

Overall mood: analytical, high-contrast, modern financial-newsroom graphic, showing contrast clearly and professionally. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no fake authoritative sources cited, no watermarks Numbers labeled "illustrative" unless the user supplied specific sourced data. No fake authoritative sources cited (do not invent "Source: Reuters 2025" — use "Illustrative example" instead). No misleading axis truncation or scale manipulation.