Bitcoin & money learning · Retrospective
Check allocation drift with simple arithmetic
Compare current weights with the original plan.
Source foundation
Diversification considers exposure across investments, including overlapping fund holdings. Investor.gov: asset allocation.
A worked example
A fictional portfolio starts with 800 units in one asset and 200 in another. The second asset doubles while the first remains unchanged. Its weight becomes 400 divided by 1,200, or about 33.3 percent, compared with 20 percent initially. No new purchase was needed for concentration to rise.
Original hypothetical example. Amounts, people, events, and scenarios above are invented for learning; they are not historical observations or forecasts.
What to take from it
Price changes can alter portfolio weights without any trading.
Try it on paper
Calculate the new weight if the first asset also rises by 10 percent.
Keep the assumptions beside your answer. Check the result before applying the idea to a different situation.
Reading and limits
The linked source supports the foundation statement. The worked example and exercise are NAKAMOTO's educational analysis. This note does not establish current prices, product terms, investment suitability, or wallet compatibility.
Source reviewed 13 September 2026. For operational decisions, consult the current official documentation and the details of your own circumstances.