Are LEGO® Minifigures a Good Investment? An Honest Look at the Evidence

"LEGO® beats gold and shares" is one of those findings that circulates without its footnotes. The underlying research is genuine, peer-reviewed and worth taking seriously. It also does not say what most people repeating it think it says.

Here is the evidence, the gap between it and the box in your loft, and the costs that never appear in a headline return.

What the research actually found

The most-cited academic work is Dobrynskaya and Kishilova, "LEGO: The Toy of Smart Investors", published in Research in International Business and Finance. The findings, stated accurately:

• Secondary-market returns on LEGO sets averaged at least 11% per year over 1987–2015 — roughly 8% in real terms after inflation.
• That outperformed large-cap equities, bonds and gold over the same window.
• A multifactor alpha of 4–5%, a Sharpe ratio of about 0.4, positive return skewness, and low correlation with standard risk factors — which is the actual interesting claim, because low correlation is what makes something useful in a portfolio rather than merely profitable.
• Returns were not uniform. Small sets and very large sets outperformed mid-sized ones. Seasonal, architectural and film-based sets did better than generic themes.

That is a real result about a real asset class. Now the footnotes.

Four reasons it may not apply to you

1. It studied sets, not minifigures

This is the big one and it is usually lost in transmission. The data is set-level secondary-market pricing. Minifigures are a related but distinct market: thinner, more fragmented, more sensitive to a single character's popularity, and much more exposed to condition and completeness.

Some of the mechanics carry over — scarcity times demand, retirement driving appreciation. The 11% figure does not. Nobody should quote a set-level return as a minifigure expectation.

2. It measured sealed, and your figures are not

The set market that produced those returns is overwhelmingly a sealed-box market. Sealed is a distinct collectible with a distinct price.

A played-with minifigure with softened torso printing is not a lesser version of the studied asset. It is a different item in a different market, and the returns literature has nothing to say about it. If your collection came out of a loft, this alone disqualifies most of the comparison.

3. It is a study of the past, in an unusual period

1987–2015 covers LEGO's near-collapse in the early 2000s and its extraordinary recovery, the rise of internet marketplaces, and the maturing of adult collecting from a fringe activity into a mass one. Secondary markets grew enormously over exactly the measurement window.

Those are one-time structural shifts. A market that has already professionalised cannot professionalise again.

4. The returns are gross

This is where paper returns meet the post office. None of the following appear in a secondary-market price index:

• Platform and payment fees — commonly around a tenth of the sale.
• Shipping and packaging — real money, and substantial on boxed sets.
• Storage — sealed sets need space, stable temperature and darkness. Sun-fading a box destroys much of the premium you were holding it for.
• Insurance, if the collection is worth insuring. See how to insure a collection.
• Your time. A good individual listing takes fifteen to twenty minutes with photographs. Across a collection that is days of unpaid work.
• The patience discount. Index returns assume you sell at market. Selling this month costs you something real.

An 11% gross return is not an 11% net return, and the gap is not small.

What actually holds value in minifigures

Setting the investment framing aside, the drivers are well understood:

• Short production runs. A figure that appeared in one set, and that set sold poorly.
• Limited distribution. Convention giveaways, store-opening exclusives, promotional figures, regional exclusives.
• Durable character demand. Licensed characters with active fandoms. Demand is the multiplier; without it scarcity is just scarcity.
• Sealed and unassembled condition.
• Completeness — the correct cape, headgear or accessory, which can be a large share of value on its own.

How to tell if a minifigure is rare goes through all of these.

If you are going to do it anyway

Three rules that follow from the evidence rather than from enthusiasm:

1. Buy sealed, keep it sealed, store it properly. Dark, dry, stable temperature, no stacking that crushes corners. The premium you are holding for is a box-condition premium.
2. Concentrate on exclusivity, not on size. The research found small and very large sets outperformed the middle; the common thread in outperformance is content you cannot get elsewhere.
3. Know what you hold, continuously. An investment you have not valued in three years is not a position, it is a pile. Scan it, record condition and quantity, and re-total it annually.

And the honest version of the advice: if you would not enjoy owning it unsold for a decade, it is not a good speculative holding. Illiquid collectibles punish people who need the money on a schedule.

The short verdict

Sealed LEGO sets have a genuine, peer-reviewed track record as an alternative asset with attractive diversification properties. Minifigures share some of the mechanics but have no equivalent evidence base, trade in a thinner market, and are far more sensitive to condition and completeness.

Treat minifigures as a collection that may appreciate, not as a portfolio that will. And whichever way you treat them, know what you have: scan your collection and re-total it once a year.

Frequently asked questions

Are LEGO minifigures a good investment?

There is no peer-reviewed evidence base for minifigures specifically. The research usually cited studied sealed sets and found average returns of at least 11% a year over 1987–2015. Minifigures trade in a thinner, more fragmented market and are far more sensitive to condition and completeness, so that figure should not be read as a minifigure expectation.

What was the actual return in the LEGO investment study?

Dobrynskaya and Kishilova reported average secondary-market returns of at least 11% per year, about 8% in real terms, over 1987–2015, with a multifactor alpha of 4–5% and a Sharpe ratio of roughly 0.4. Returns were concentrated in small sets, very large sets, and seasonal, architectural and film-based themes.

Do LEGO minifigures go up in value over time?

Some do; most do not. Appreciation requires a short production run and durable demand for the character or theme. A figure produced in millions does not become scarce by ageing. Sealed, unassembled condition and completeness with the correct accessories are prerequisites for the strongest outcomes.

Is it better to invest in sealed sets or minifigures?

The evidence base exists for sealed sets, not minifigures, and sets are easier to authenticate and grade because sealed is a binary state. Minifigures are cheaper per unit, far easier to store, and much more exposed to condition judgement and to counterfeits.

What costs do LEGO investment returns ignore?

Platform and payment fees of roughly a tenth of the sale, shipping and packaging, storage space and conditions, insurance, and the substantial time cost of listing and selling. A published gross return is materially higher than what a private seller nets.

How do I track what my LEGO collection is worth over time?

Build an inventory and re-total it on a schedule. Scan minifigures in batches, record quantity and condition honestly, keep everything in one currency, and re-run the total annually with the date noted. How much is my collection worth covers the process.