Core-Satellite Portfolio

A core-satellite portfolio separates the boring base from the higher-conviction edges. The core is the part meant to carry the long-term plan. The satellites are smaller sleeves for specific themes, factor tilts, single stocks, options education, or active trading experiments. The structure matters because it keeps one exciting idea from quietly becoming the whole portfolio.

Quick definition

A core-satellite portfolio keeps a diversified base separate from smaller, intentional sleeves for specific research ideas, tilts, or active strategies.

What belongs in the core

• ▸The core is usually broad, diversified, low-maintenance, and tied to the investor’s time horizon.
• ▸It may include broad stock funds, bond exposure, cash reserves, or other diversified sleeves depending on the person’s plan.
• ▸The job of the core is not excitement. The job is to make the portfolio survivable, understandable, and reviewable.

What belongs in satellites

• ▸Satellites are smaller, defined experiments or tilts.
• ▸Examples include a sector thesis, a single-stock research position, an options education sleeve, a crypto exposure cap, or an active trading account.
• ▸Every satellite needs a purpose, size limit, invalidation rule, and review date. Without those, it is not a satellite. It is portfolio drift.

A simple allocation example

• ▸A beginner might write: 80% core, 10% satellite stock research, 5% active trading education, and 5% cash opportunity reserve.
• ▸The exact percentages are less important than the rule: the satellite cannot grow because of excitement alone.
• ▸If a satellite doubles, the question is not only celebration. The question is whether it now violates concentration limits or changes the portfolio’s risk identity.

Core-satellite mistakes to avoid

• ▸Calling everything a satellite so there is no real core.
• ▸Adding new sleeves without removing old ones.
• ▸Letting winners become oversized without a review rule.
• ▸Using the satellite bucket to justify random trades.
• ▸Reviewing only performance instead of process, risk, and whether the original reason still exists.

How Bucko fits the workflow

• ▸Use Bucko as an educational research and review workspace: save the idea, write the reason, compare the math to your risk budget, journal the review rule, and check whether the actual decision matched the plan. If you use alerts or automation, keep it user-configured with guardrails, daily caps, and a kill switch rather than treating the tool like a decision-maker.

Bucko workflow checklist

• ▸Write the decision before the action.
• ▸Save the math, assumptions, and risk notes.
• ▸Mark what would change the plan.
• ▸Review the result after the position, rebalance, or research update.
• ▸Keep the process educational and user-directed.