June 10, 2026 · ~10 min read
In 2020–2021, borrowing to invest looked like genius. In 2022, it destroyed fortunes — sometimes overnight. Here's the honest math, the hidden dangers, and the rare cases where leverage might make sense.
The concept is simple: use other people's money (OPM) to control a larger position than your own capital allows. If the trade goes your way, your returns are amplified. If it goes against you, so are your losses — and you still owe the borrowed amount plus interest regardless of what the market does.
There are three main forms retail investors encounter:
The leverage equation is mechanical. Say you invest $10,000 of your own money and borrow another $10,000 — your $20,000 position is 2x leveraged. Here's what that does to your outcomes over a 12-month period, assuming a 7% annual borrowing cost (~$700):
Notice what happened. Leverage amplified a 20% gain to 33% — nice. But it also turned a 20% market loss into a 47% personal loss. And it turned a flat market into a loss. The interest cost is the quiet killer: it works against you every day, rain or shine.
Returns on your $10,000 of capital. Borrowing cost assumed at 7%/year. Losses in the -20% scenario are dramatically worse than gains in the +20% scenario.
From March 2020 to November 2021, the S&P 500 roughly doubled. In that environment, almost any leveraged bet on US equities worked — spectacularly. Someone using 2x margin on the index would have seen their $10,000 turn into something north of $30,000. It felt like the secret everyone else was missing.
That's survivorship bias at work. You hear about those people. You don't hear about the ones who got margin called in March 2020 before the recovery, or the ones who piled into leveraged crypto in late 2021 right before the collapse. Those people are quiet.
The Archegos Capital story is instructive. Bill Hwang ran a family office using 5x leverage on concentrated positions in media stocks. In March 2021, stocks like ViacomCBS and Discovery began falling. As the positions declined, banks demanded more collateral. Hwang couldn't cover. The banks force-sold his positions in a cascade that wiped out over $20 billion in value in a matter of days — one of the fastest personal fortune destructions in financial history. Hwang was experienced, sophisticated, and still destroyed.
In crypto, the 2021 bull run made 10x leveraged Bitcoin positions look like genius. BTC went from $10,000 to nearly $69,000. Then in 2022, it fell 75% peak to trough. A 10x leveraged position gets liquidated at a 10% adverse move — most people holding such positions were completely wiped out long before the bottom. On May 19, 2021 alone, over $8 billion in leveraged crypto positions were liquidated in a single 24-hour period.
Leverage doesn't create returns — it compresses time. Wins come faster, and so do losses. The problem is that markets don't move in straight lines. They gap down overnight. They crash on weekends when you can't react. They stay irrational for months while your interest clock is running. Leverage turns temporary setbacks into permanent capital destruction.
Here's a scenario that plays out constantly and almost never makes the financial press. An asset has three bad months, then recovers strongly. For an unleveraged investor, it's barely a scratch. For a leveraged investor, the recovery may arrive too late to matter.
Take a sequence: -20%, -15%, then +40%. This is a volatile-but-recovering asset. Here's what happens to your $10,000 in each case:
Same asset, same return sequence (-20%, -15%, +40%). Unleveraged: small loss of 4.8%. 2x leveraged: loss of 29.4%. The +40% recovery arrives — but the leveraged investor may be liquidated before it does.
Three mechanisms make this worse than the simple math suggests:
Not all leverage is created equal. Each form has its own cost structure, trigger mechanisms, and failure modes.
Brokers lend up to 50% of the purchase price (Federal Regulation T). Maintenance margin is typically 25–30% of total position value — if your equity falls below this, the margin call arrives automatically, not as a phone call from a concerned broker but as an automated forced liquidation.
Current margin rates: 7–12% annually at most US brokers (2024). For a position you hold for a year, that's a guaranteed drag you need to overcome before you start profiting from the borrowed capital.
Realistic use: very short-term trades where you're highly confident in near-term direction. Long-term margin investing is extremely difficult to justify mathematically after accounting for interest costs. In volatile markets, you can be margin called before you have time to add capital or hedge.
This is the most dangerous form for most people, and the one financial advisors argue most strenuously against — because you are literally using your house as collateral for a stock market bet.
HELOC rates in 2024 run 8–10% variable. The historical S&P 500 average return is roughly 10%/year — but that's an average. In 3 out of every 10 years historically, the market has been negative. In those years, you're paying 8–10% interest on borrowed money while your investments are also declining. Your house remains collateral throughout.
The only narrow exception: exercising stock options with a near-term liquidity event (IPO, acquisition) where you have high conviction the gap is days, not months. Even then, the structural risk is severe.
Crypto leverage is in a category of its own. At 100x leverage, a 1% adverse move equals total liquidation — your entire position is gone. At 10x, a 10% move does it. Bitcoin has had single-day moves of 10%+ more times than most people realize.
The structural incentive problem: crypto exchanges profit from liquidations. Their risk systems are designed to liquidate you before losses become their problem — and liquidation cascades, where one batch of forced selling drives down prices and triggers more liquidations, are a recurring feature of crypto markets.
"Funding rates" add an additional cost: during bull markets, you pay other traders (the short side) to maintain leveraged long positions. These rates can be enormous — effectively an extra annualized cost of 30–50% during periods of high leverage demand — on top of which the market still has to move in your favor.
If you trade crypto leverage: treat it as entertainment budget — money you're fully prepared to lose completely. Not investment capital, not emergency funds, not borrowed capital.
Personal loan rates in 2024 range from 12–20%. To break even on the borrowing cost, you need consistent annual returns of 12–20% before taxes — just to not lose ground. Consistent 20% annual returns are extraordinarily rare.
Warren Buffett has sustained roughly 20% annual returns over decades — he is possibly the best long-term investor in history. The median actively managed mutual fund doesn't achieve this. If you're planning to beat Buffett's career-long average using borrowed money at 15%, the math is genuinely not in your favor.
To be fair and complete: leverage does have legitimate use cases. They're narrow, require specific circumstances, and most do not apply to the majority of retail investors.
| Investor Type | Should They Borrow to Invest? | Why |
|---|---|---|
| First-time investor | Absolutely not | Learn the basics first; leverage magnifies every mistake you don't yet know you're making |
| Young investor (bull market FOMO) | No | Survivorship bias makes it look easy; one bad cycle wipes out years of progress |
| Experienced long-term investor | Rarely, if ever | Sequence-of-returns risk; interest costs eat alpha; even Buffett doesn't use margin at the retail level |
| Professional trader | Only with strict risk rules | Daily stop-loss, small position size, accept liquidation risk going in — not after the fact |
| Crypto day trader | Only money you can 100% lose | Treat as entertainment budget; not investment capital, not emergency savings |
The math on most retail leverage use is pretty damning. So why do so many people do it? Because the psychology of a bull market actively works against clear thinking.
"The market can remain irrational longer than you can remain solvent."
— Widely attributed to John Maynard Keynes. The attribution is disputed, but the principle is not.
This is the specific danger of leverage: it has a time limit. The market can stay wrong for months — longer than your margin account will tolerate, longer than your interest payments remain manageable, longer than your emotional resolve holds. You can be correct about the long-term direction of an asset and still be completely wiped out by leverage before the thesis plays out.
Before you borrow to invest, run through this list honestly. If any of these apply, stop and reassess.
If you're considering leverage because an asset looks compelling, make sure that conviction is built on fundamentals — not market momentum. BriMindInvest lets you compare stocks and ETFs side-by-side with valuation, quality scores, and AI analysis so you can invest with real conviction.
Compare Stocks on BriMindInvest