To The Moon

In the final days of July 2026, the air went out of one of Wall Street’s hottest stories almost overnight. Situational Awareness, the AI-focused hedge fund built by former OpenAI researcher Leopold Aschenbrenner, found itself staring down margin calls from its lenders. What had been a spectacular runhundreds of percent returns, assets swelling into the tens of billions ended in a frantic overnight scramble. The firm sold the bulk of its public stock holdings in a block trade to Ken Griffin’s Citadel, preserving some private positions but leaving the once-celebrated vehicle a shadow of its former size.

Halfway around the world, the same pressure wave crashed over South Korean retail investors. Many had piled into semiconductor names such as SK Hynix and Samsung Electronics, often with borrowed money and leveraged exchange-traded funds that amplified every move. Margin loans had climbed to record levels earlier in the summer. When prices turned sharply lower, the cascade began: margin calls, forced liquidations, and accounts wiped out. Estimates of retail losses on leveraged products ran into the tens of trillions of won. Young investors in particular took heavy hits. One wave of selling fed the next, pressuring the same AI-linked stocks that Situational Awareness held.

The common thread was leverage. Borrowed capital multiplies gains when markets rise and multiplies losses when they fall. In an up market it can turn a solid thesis into life-changing returns; in a down market it can turn a temporary drawdown into permanent capital destruction. Lenders do not wait for a recovery. When collateral values drop below required thresholds, they demand more cash or force sales. Those forced sales push prices lower still, triggering more calls. Correlations that looked manageable in calm markets can approach one under stress, so that long positions and hedges both lose money at the same time.

Situational Awareness had reportedly run leverage high enough that a sharp reversal in AI infrastructure stocks left it little room to maneuver. Korean retail traders, many of them using margin accounts and single-stock leveraged ETFs, faced the same mathematics at a personal scale. The tools that accelerated wealth on the way up extracted it on the way down, often at the worst possible moment—near the local low, just before a relief rally arrived once the forced selling eased.

Investors who want to avoid finding themselves in that position can take several practical steps. First, treat leverage as a limited tool rather than a default setting. Understand the exact margin requirements, the speed of potential margin calls, and the worst-case scenario for the positions held. Keep cash reserves or unlevered holdings large enough to meet calls without forced sales. Diversify across uncorrelated assets so that one crowded theme cannot sink the entire portfolio. Size positions so that a severe drawdown remains survivable rather than catastrophic. Review leverage regularly rather than only after markets have already turned. And resist the temptation to increase borrowing simply because recent returns have been strong; the strongest performance often precedes the sharpest reversals in crowded trades.

None of this means markets cannot be navigated successfully. It does mean that the methods matter as much as the thesis. History is littered with brilliant ideas that still ended in liquidation because the capital structure could not withstand volatility.

Against that backdrop, the quieter path continues to look more durable for most people. Steady contributions into a diversified portfolio of productive assets, held for years rather than weeks, compound without the binary risk of margin calls. Markets will still swing. Valuations will still stretch and compress. The difference is that the patient investor is not forced to sell at the bottom to satisfy a lender. Time, not borrowed money, becomes the primary amplifier.

Those seeking that kind of steady compounding often turn to proven compounders and low-cost vehicles built for the long haul. Berkshire Hathaway remains a classic example of patient capital allocation under Warren Buffett and the late Charlie Munger. Broad, low-cost index funds in the spirit of John Bogle’s Vanguard approach—such as total-market or S&P 500 trackers—have delivered reliable long-term growth for ordinary investors without the drama of concentrated bets. Quality businesses with durable competitive advantages and consistent cash flows, including names that have compounded over decades in consumer staples, essential technology, and healthcare, also reward owners who simply hold through the noise. The common thread is ownership of real earnings power rather than leveraged speculation on the next hot narrative.

The Situational Awareness episode and the parallel liquidations in Korea will fade from the headlines. New narratives will emerge, new funds will post eye-catching short-term numbers, and new waves of retail leverage will appear when the next theme catches fire. The arithmetic of leverage will remain the same: it cuts both ways, and the downside is often faster and more permanent than the upside feels at the time. Those who respect that reality, and who favor the slower compounding of capital over the accelerated destruction of it, tend to still be standing when the dust settles.