The question isn't whether Tier 5 belongs in an income portfolio — it's how much. The answer is specific, data-backed, and not what most high-yield investors are currently doing.
Most high-yield investors size positions by conviction, not by risk math. The 15% Tier 5 rule is derived from income volatility data, not intuition.
A portfolio of all Tier 4-5 produces high headline yield and unacceptable income volatility. The tier mixing rules in Chapter 8 show why the blend matters.
Month-to-month income swings of 30-40% are common in over-concentrated Tier 5 portfolios. The model portfolios show how to reduce this without sacrificing yield.
Chapters marked Most Relevant are specifically applicable to your situation.
Why systematic tier-based construction outperforms intuition-based picking.
SGOV, BIL, T-bills — the foundation every income portfolio needs.
SCHD, VIG, DGRO — dividend growth with capital stability.
REITs, BDCs, MLPs — higher yield with understood structural risks.
JEPI, JEPQ, SPYI — covered call income at managed volatility.
Single-stock synthetics — position sizing rules and total return reality.
Conservative (Tier 1-2), Balanced (Tier 1-3), Income (Tier 2-4), Aggressive (Tier 2-5), FIRE Bridge (Tier 3-4).
When to rebalance, what triggers a tier reassignment, quarterly review cadence.
2.3x income volatility, 1.1x income
Portfolios exceeding the 15% Tier 5 threshold showed 2.3x higher income volatility with only 1.1x income increase — a poor risk/return tradeoff.
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