$2,500 a month starts at 6% a year.
Can a 12-month semiconductor breakout rule fund retirement?
Strategy in short: Hold SMH after a new 12-month high. Hold T-bills after a new 12-month low. Otherwise keep the prior position.
Retirement answer: SMH 12-month channel supported less starting spending than Always SMH: 2.9% versus 3.4% a year funded 30 years in at least 95% of both sets of histories. These are historical thresholds, not recommended spending.
Return comparison: Always SMH made more money in this backtest. SMH 12-month channel ended with $198,282 and Always SMH with $379,376.
Growth of $10,000 — logarithmic scale
SMH 12-month channel had a deepest fall of 51.8%, compared with 63.3% for Always SMH.
See where the semiconductor channel helped and hurt
The rule waits for a new 12-month high before owning SMH and leaves only after a new 12-month low.
The rule reduced exposure during 99 months. Across those months, SMH compounded to a gain of 126%.
During the lower-exposure months, SMH rose in 59 months and fell in 40 months. That is where the rule either gave up gains or avoided losses.
SMH 12-month channel$198,282-51.8% deepest fall
Always SMH$379,376-63.3% deepest fall
July 2001 through June 2026. Distributions are reinvested. The calculation charges 0.10% of each risky asset bought or sold. There are no withdrawals in this graph. Equal percentage moves take equal vertical space. Past results do not predict future results.
Did the breakout rule make SMH easier to spend from?
By January 2011, Always SMH had run out while SMH 12-month channel still had $129,122.
Avoiding more of the earlier losses left money available to keep paying withdrawals.
Example: You have $500,000 and need $2,500 a month—6% a year.
The same spending then equaled 28.7% a year.
The portfolio had run out of money.
What funded at least 95% of both history tests?
SMH 12-month channel supported a 2.9% starting annual withdrawal for 30 years: 300 ordered starts and 4,752 of 5,000 mixed histories funded every withdrawal.
These are historical thresholds, not recommended spending amounts or a promise of future success.
Test if SMH 12-month channel can fund your early retirement with your own numbers
Enter your portfolio, monthly spending, and how long the money needs to last.
$2,500 a month for 30 years starts at 6.0% of the portfolio each year.
In these backtests, sometimes. Neither strategy funded this early retirement in at least 8 out of 10 histories tested.
300 starting months; the fund's record repeats in order when needed
- SMH 12-month channel
- 210 funded
- Always SMH
- 275 funded
5,000 histories built from 8–12-year pieces
- SMH 12-month channel
- 3,310 funded
- Always SMH
- 3,833 funded
A path funded the goal only if it paid every inflation-adjusted monthly withdrawal for 30 years. Results use the nearest 0.1 percentage-point starting withdrawal rate. They reuse one 25-year market record and are not a probability about your future.
How the FIRE calculator works
The calculator applies the portfolio value, monthly withdrawal, and number of years you enter. The first withdrawal occurs before the first month's return, and later withdrawals rise with U.S. inflation. A history counts as funded only if it pays every monthly withdrawal for the full period and finishes above zero.
One result begins at each of the 300 months in the fund record and follows that record forward in order, returning to its first month when more months are needed. The other builds 5,000 longer histories from linked 8-, 10-, and 12-year pieces of the same record. The calculation charges 0.10% whenever SMH is bought or sold and excludes personal tax.
At every repeated or rearranged join, market signals use the real observations that preceded the incoming historical month. Portfolio value, withdrawals, inflation and strategy state continue without resetting.
Strategy in detail
Hold SMH after a new 12-month high. Hold T-bills after a new 12-month low. Otherwise keep the prior position.
Semiconductor trends can be powerful in both directions. A channel rule tries to stay in sustained rises and avoid the middle of sustained declines.
Research has found that market direction can persist for months in many asset classes. See the 2012 time-series momentum study and a longer study across 67 markets. Those broad findings make the idea plausible; they do not validate this exact rule.
Can I trust these results?
My evidence-weighted estimate is about 48% that the main effect would persist in a new long market period. That makes the result uncertain, not dependable enough to treat as a promise.
The direct test covers July 2001 through June 2026. It includes fund distributions, T-bill returns, inflation and the stated trading costs, but it is still one U.S. market record. The longer retirement histories repeat it or link 8–12-year pieces; they test difficult orders, not new historical evidence.
Treat the result as evidence about how the rule behaved, then compare it with simpler alternatives and your own ability to follow it through a bad period.
Methodology details for the nerds
How I ran the return comparison
The test starts with the amount shown on the graph. Each decision uses only information already complete at that month-end. Distributions are reinvested, T-bills earn the published three-month rate, and the calculation charges 0.10% of each risky asset bought or sold.
How I tested retirement withdrawals
The first withdrawal occurs before the first month's return. Spending then rises with U.S. inflation. One panel checks every starting month in order; the other links 5,000 histories from 8-, 10-, and 12-year pieces. A path counts only if it pays every withdrawal and remains above zero.
Data and important limits
The calculation uses adjusted fund returns plus U.S. government T-bill and inflation data. Personal tax, spreads beyond the stated cost, and investor behavior are not included. A real fund can differ from its index because of fees and tracking.
Keep comparing
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Use this result
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