Batch 22 — Sentinel QA Notes

QA Run: 2026-03-24
Reviewed by: Sentinel (QA Agent)
Files reviewed: 5

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Overall Results

| File | SEO FM | 1200+ Words | Stats OK | No Buy Advice | No Guarantees | CTA OK | Prose OK | Verdict | |------|--------|-------------|----------|---------------|---------------|--------|----------|---------| | batch-22-what-is-quantitative-easing.md | ✅ | ✅ (1455w) | ✅ | ✅ | ✅ | ✅ | ✅ | PASS | | batch-22-how-to-read-fed-dot-plot.md | ✅ | ✅ (1598w) | ✅ | ✅ | ✅ | ✅ | ✅ | PASS | | batch-22-investing-small-cap-stocks.md | ✅ | ✅ (1541w) | ✅ | ✅ | ✅ | ✅ | ✅ | PASS | | batch-22-what-is-vix-fear-index.md | ✅ | ✅ (1601w) | ✅ | ✅ | ✅ | ✅ | ✅ | PASS | | batch-22-how-to-build-dividend-portfolio.md | ✅ | ✅ (1772w) | ❌ | ✅ | ✅ | ✅ | ✅ | FAIL |

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Issues Found

File: batch-22-how-to-build-dividend-portfolio.md

Issue: Fabricated/erroneous investment math figure

Location: "Understand the Yield vs. Growth Tradeoff" section, second-to-last paragraph.

Offending text:

"if you invest $10,000 in a company with a 2% yield growing at 10% annually, your annual dividend income grows from $200 in year one to over $500 by year 10 — and your share of an $85,000+ position (assuming modest price appreciation in line with earnings)."

Problem: The $85,000+ figure is mathematically indefensible. To grow $10,000 to $85,000 in 10 years requires ~24% annualized returns — far beyond "modest price appreciation." Realistic math:

• At 10% annual price appreciation (generous): $10,000 × 1.10^10 ≈ $25,937
• At 12% total return (dividends + appreciation): $10,000 × 1.12^10 ≈ $31,058
• At 15% (aggressive assumption): $10,000 × 1.15^10 ≈ $40,456

The dividend income math ("over $500 by year 10") is approximately correct ($200 × 1.10^10 ≈ $519 in year 10), but the portfolio value claim is inflated by 2–3x.

This constitutes a fabricated statistic that overpromises returns and could mislead readers.

Fix: Replace the erroneous sentence with a corrected version that uses realistic math. Suggested replacement:

"if you invest $10,000 in a company with a 2% yield growing at 10% annually, your annual dividend income grows from $200 in year one to over $500 by year 10 — and your position could reasonably be worth $25,000–$31,000+ assuming 10–12% annual total returns from dividend growth and price appreciation."

Or simply remove the portfolio value claim entirely if a specific number isn't needed for the point being made, since the dividend income growth example already illustrates compounding effectively on its own.

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Notes on Key Fact Checks (Passed)

• QE balance sheet figures: Fed balance sheet ~$900B pre-QE1 (2008), ~$4.5T by 2015, ~$9T peak (2022) — all verified accurate.
• 2020 QE: "$3 trillion added in a few months" — Fed balance sheet went from ~$4.2T (early March 2020) to ~$7.2T (June 2020), consistent with claim.
• Fama-French: 1992/1993 papers documented; size premium ~3–4% annually using CRSP data back to 1926 — accurate characterization.
• Russell 2000 drawdowns: dot-com ~45%, 2008 ~50%+, COVID ~41% — all verified within acceptable range.
• VIX construction: Correctly described as derived from S&P 500 options (calls and puts, multiple strikes, 30-day horizon). VIX peaks of ~80 in Oct/Nov 2008 and ~83 in March 2020 are accurate.
• FOMC dot plot: 19 participants, 4 releases per year (March/June/September/December) — accurate.
• CPI peak June 2022 at 9.1% — accurate.

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End of QA notes.