The 80/20 Plan

Growth of the account

Two honest readings coexist in this chart. Over the full 22 years, 100% QQQ finished higher — $2.49M against the plan's $2.08M — because this window contains the greatest tech bull market ever recorded, and any gold at all diluted it. But nobody investing in 2005 knew that outcome, and the ride tells the other half of the story: the plan's worst year (−34% in 2008) was nine points gentler than pure QQQ's −43%, every crisis drawdown was shallower, and the gold sleeve turned 2022 — the month-after-month grind that breaks DCA discipline — into something survivable. The plan buys its holder's staying power, and staying power is what compounds.

Every crisis, side by side

Peak-to-trough fall of the account (contributions included) during each major episode, plan versus a 100% QQQ DCA account of the same age.

The pattern is uniform: in seven out of seven episodes across two decades and four different kinds of shock — credit crisis, rate shock, pandemic, inflation — the gold sleeve absorbed part of the blow. Never all of it; gold is a shock absorber, not a shield.

The mechanic, living

The drift chart is the proof that the tax-free version works. For 95% of all months the mix stayed within 6 points of target on contributions alone. The one real excursion is visible around 2011: gold nearly tripled off the 2008 lows while tech went sideways, and with no selling allowed, QQQ's share sank to 59% before contributions hauled it back — which took years. That episode is why the card carries rule 3: a drift past ±10 points that persists deserves a one-time true rebalance. (It also shows the plan failing gracefully — the "wrong" 60/40 mix it drifted into was itself a fine portfolio.)

What "±10 points" means in practice. Drift is how far the actual mix has wandered from the 80/20 target, measured in percentage points of the portfolio. A mix of 84/16 is 4 points of drift — normal wiggle, do nothing special. 87/13 is 7 points — still fine; your deposits will simply all flow to gold for a while. But at 91/9 or 69/31 the drift has passed 10 points: contributions alone are now too small to fix it in reasonable time, so you make the one-time exception to "never sell" — trade back to roughly 80/20, then resume the normal routine. The threshold isn't magic: 10 points is wide enough that ordinary markets never trigger it and tight enough that a 2011-style regime move does; anywhere from 8 to 15 would serve. What matters is picking the number now and writing it down — a mechanical plan works because decisions like this are made calmly in advance, not improvised in the middle of a gold mania or a tech crash. In 22 simulated years, the trigger fired roughly once.

The third row is the plan's quiet superpower: it hands you a mechanical reason to buy tech stocks in a crash — the moment willpower usually fails and hindsight always approves. Over the 22 years the rule sent 118 monthly contributions into QQQ and 141 into gold, with one 80/20 split at the start.

The numbers, both windows

Note the gap between the plan and its frictionless ideal: about 3% of final value ($67,000) over 22 years. That is the entire cost of never selling — and it evaporates the moment taxes enter. Maintaining exactly 80/20 requires selling in 194 of the 260 months, about $1.07M of cumulative sales realizing $520,000 of capital gains along the way. Tax those at a blended 20% as they occur and the exact-rebalance account finishes at $1.97M — about $108,000 behind the buy-only plan, before even counting that monthly-rebalance gains are mostly short-term. The verdict: in a taxable account, buy-only wins outright; in a tax-advantaged account, exact rebalancing is worth about 3% more over two decades and also prevents drift episodes like 2011.

Bonus: why QQQ and not SPY?

The plan's equity engine could have been the broader S&P 500 instead. The same DCA backtest, run on both, explains the choice.

Over the 22-year window QQQ delivered nearly double the final money at essentially the same worst drawdown — 2008 hit both indexes about equally hard. That is why QQQ, not SPY, carries the equity side of this plan.

The honest caveat is the one the table cannot show: this data starts in 2005, three years after QQQ's worst catastrophe. In the 2000–2002 dot-com crash QQQ fell roughly 83% peak-to-trough and did not reclaim its 2000 high until about 2015; through 2000–2010, SPY beat QQQ badly. QQQ is ~100 stocks dominated by mega-cap tech — choosing it over SPY is a sector-concentration bet, and these two decades rewarded that bet. If tech leadership ends, so does QQQ's edge — which is also why the gold sleeve matters more beside QQQ than it would beside SPY: QQQ's crashes are sharper when its own sector is the epicenter. A holder who wants to hedge the end-of-tech-era scenario itself doesn't switch to SPY; they split the equity sleeve — for example 40% QQQ / 40% SPY / 20% gold.

What could go wrong

• Both can fall together. In October 2008 and March 2020, gold dropped alongside stocks for a few weeks (liquidity panics sell everything). Gold's protection arrives over months, not days.
• Concentration is still concentration. QQQ is ~100 stocks dominated by a handful of mega-cap tech names. This plan has no exposure to small caps, value, or non-US markets — that's a bet, and 2005–2026 rewarded it; other eras haven't.
• The drift can get large before contributions fix it. The 2011 episode reached 60/40. Decide in advance what your rebalance trigger is (±10 points is reasonable) so you're not improvising during a gold mania.
• Taxes still exist at the end. Buy-only defers gains; it doesn't erase them. Hold the plan in a tax-advantaged account if you can.
• The plan only works if executed in the bad months. Every number on this page assumes the $1,000 went in on schedule in October 2008 and June 2022. That assumption — not the allocation — is the strategy.