Bond Portfolio Analyzer

Bond Portfolio Analyzer

The Bond Portfolio Analyzer evaluates fixed-income holdings and bond ETFs for interest rate duration risk, credit quality splits, and yield shock vulnerabilities.

What is Bond Portfolio Analysis?

Many investors hold bond funds (TLT, BND, HYG, AGG, LQD) for diversification without understanding their underlying interest rate and credit sensitivities.

A portfolio concentrated in long-duration Treasuries behaves very differently during a rate hike cycle than an allocation weighted toward short-duration or high-yield corporate credit. The Bond Portfolio Analyzer breaks down any fixed-income allocation into institutional risk factors—duration, yield curve exposure, and default spread risk.

How Pierce AI Executes It

When you describe your bond holdings to Pierce, it runs an institutional risk audit:

1. Holding Extraction & Asset Classification: Pierce maps your positions into core fixed-income asset classes:
   • Ultra-Short / Cash Proxies: BIL, SGOV, SHY (Duration: 0.1 – 2.0 yrs)
   • Intermediate Treasuries: IEF, VGIT (Duration: 6.0 – 7.5 yrs)
   • Long-Term Treasuries: TLT, VGLT (Duration: 15.0 – 17.5 yrs)
   • Aggregate Core Bonds: BND, AGG (Duration: 6.0 – 6.5 yrs, 70% Govt / 30% Corporate)
   • Investment Grade Corporates: LQD, VCIT (Duration: ~8.0 yrs, BBB/A ratings)
   • High-Yield / Junk Bonds: HYG, JNK (Duration: ~4.0 yrs, high credit risk)
   • Inflation-Protected Securities: TIP, SCHP
2. Weighted Aggregate Duration Calculation: Calculates the overall dollar-weighted duration of your fixed-income portfolio.
3. Interest Rate Shock Stress Test (+/- 100 bps): Applies the duration sensitivity formula: $$\Delta P \approx -\text{Duration} \times \Delta y$$ Pierce calculates the exact projected capital gain or loss if benchmark yields move by $\pm 100 \text{ bps}$ ($\pm 1.0%$).
4. Credit Quality & Spread Risk Breakdown: Separates risk-free sovereign debt from corporate credit spread exposure.

Key Metrics & Deliverables

By engaging the Bond Portfolio Analyzer, you receive:

• Weighted Duration Metric: Total effective portfolio duration with risk categorization (Low: <3 yrs, Moderate: 3–7 yrs, High: 7–12 yrs, Extreme: >12 yrs).
• Rate Shock Scenario Table: Modeled percentage portfolio price impact under +100 bps, +200 bps, -100 bps, and -200 bps yield scenarios.
• Credit Allocation Breakdown: Exposure percentages across Government, Investment Grade, and High-Yield debt.
• Actionable Rebalancing Insights: Clear recommendations if duration risk or credit spread concentration is out of alignment with your risk goals.

Example Prompts & Use Cases

You can prompt Pierce with your actual or hypothetical bond holdings:

• "I have $20k in TLT, $15k in BND, and $10k in HYG. Analyze my bond portfolio for interest rate duration risk and credit quality."
• "What happens to my bond allocation (60% AGG / 40% TLT) if the Fed raises rates by 100 basis points?"
• "Analyze the interest rate sensitivity and duration of a portfolio holding SHY, IEF, and LQD."
• "Evaluate the credit risk and yield profile of my fixed-income ETFs: BND, VCIT, and JNK."

Methodology Notes & Limitations

• Linear Duration Approximation: Standard duration calculations provide a linear estimate. For massive yield shifts (>200 bps), convexity becomes a significant factor.
• ETF Underlying Holdings: Analysis utilizes published benchmark weighted averages for standard bond ETFs.
• Credit Spread Divergence: During severe market panics, high-yield spreads can widen sharply even if Treasury yields drop.

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Note: Bond Portfolio Analyzer is available on the Preferred tier and above.