Why Stock Market Crashes Happen So Fast — And Who Makes Money?

[00:00:00] Speaker 1: Hey everyone and welcome back to the channel. Now have you ever wondered what happens to investors' money in a market crash? Sort of picture a portfolio chart falling off a cliff. Billions of dollars have just gone from the screen in a single afternoon. But here's the question that almost nobody actually answers, which is where does that money actually go? Is it sitting in a vault somewhere? Did someone steal it? The real answer obviously is the stock market isn't a bank account. It's more like an auction house. Your money didn't burn. Its perceived value just changed. And that distinction is the whole point of this video. Now here's an analogy to make this click. Say you buy a house for $400,000 and the housing market crashes so it's now worth $300,000. Did a $100,000 physically leave your wallet? No. You still have the exact same house, same bricks, same roof, nothing missing. But if you tried to sell it today, someone would only pay you $300,000 for it. That's similar to what happens when the stock market crashes. A drop on your screen is what's called an unrealized loss or a paper loss. You haven't actually lost a single dollar until you click sell. And here's the mechanic that makes these crashes feel so violent, so unnerving. The value of your shares is really just the price of the very last share that traded. So if one panicked investor sells a single share of a company for 20% less than yesterday's price, the calculated value of everyone else's shares, including yours, even if you did nothing, can technically drop right along with it. Now, value, stock value, that gets created by collective optimism and it gets destroyed by collective pessimism. Nobody's account is $100,000 richer because yours dropped by that amount. The money isn't sitting in someone else's pocket. The market simply agreed all at once that the asset is worth less right now than what it was yesterday. Now, some quick numbers to ground all of this. Bear markets, those are defined as a drop of 20% or more. Bear markets have hit roughly every three and a half to five years historically. They tend to last about nine to 10 months on average from peak to trough and they average somewhere between a 33% and 37% decline. That's the scale of what we're actually talking about. Now, here's why this distinction actually matters beyond just being a fun fact. If you actually internalize that a paper loss isn't a real loss, watching your portfolio drop stops being a crisis. It starts just being information. It's uncomfortable information, but it's not the same thing as your bank account actually being $100,000 lighter. And most of the bad decisions that people make in a market crash, they actually come from treating the two as identical when they're not. Now, there's an old Wall Street saying for this. Markets take the escalator up and elevator down. Wealth builds slowly over years on the back of actual company earnings. Crashes happen in days, sometimes hours, and those crashes are often based on pure human emotion. Now, part of what makes the elevator so fast is something called liquidity. Think about trying to sell a rare collectible in a room full of people, except suddenly everyone in that room just went broke. In call markets, there's always buyers willing to pay something close to the last price. And in a panic, buyers don't just get pickier, a lot of them vanish entirely. So if you need to sell right now, you have to keep dropping your price until somebody or anybody is willing to take it off your hands. That desperate search for a buyer is what pulls prices down so fast, and so far, and much faster than any of the actual news driving the panic would seem to justify on its own. Now, this is the part that actually tends to trip investors up the most. The speed of the drop feels like proof that something catastrophic just happened in the real economy. The truth is that most of the time it hasn't. The underlying businesses you own didn't suddenly become worthless overnight. What changed is how badly everyone wants out at the same moment. And that's a completely different thing than the companies themselves falling apart. Now, there's a few different forces that can turn an ordinary bad day in the market into a genuine crash. The first is forced selling through margin calls. Some investors borrow money from their broker to buy more stock than they could otherwise afford. So when prices fall, the value of what they've put up as collateral fails too. And at some point, the broker doesn't ask nicely. They sell the investor shares immediately at whatever price they can get to cover the loan. And that forced selling pushes prices down further. That triggers margin calls on other investors and the chain reaction feeds itself. The second force, and this is important to talk about, is the sheer amount of trading that no human being is directly executing anymore. Today, an estimated 60 to 70 percent of stock trading is done by computer algorithms. This is not people manually clicking sell. So a huge number of these systems are watching the same price thresholds, and when enough of them get triggered at once, you get millions of sell orders firing within milliseconds. That's not panic in the emotional sense, it's just math. And it's executing exactly as programmed all at the same moment, all through algorithmic trading. So you put those two forces together and you really get the answer to why the market tends to drop so fast in a crash. It's not that millions of individual people all suddenly panicked in perfect unison. It's actually a relatively small number of forced automatic sales cascading into other forced automatic sales. And then the humans watching it happen. They feel like they're witnessing pure chaos and it can become a very fast, unforgiving domino effect. Now, it's worth remembering that a crash isn't uniformly bad news for everyone. There's a few groups that actually benefit investors sitting on large piles of cash. You know, the great Warren Buffett is a textbook example here. His idea of treating a crash like a store-wide clearance sale, buying quality businesses at prices far below what they were willing to pay the week before, is a durable thesis for long-term shareholders. Now, short sellers make money the opposite way of long-term investing. Short sellers, they borrow shares, they sell them at today's higher price, they buy them back at a lower price to pocket the difference. And then there's market makers and brokers, the firms that facilitate the trading. They often do just fine either way because they earn money on trading volume and transaction fees, and volatile markets generate enormous volume, regardless of which direction prices are moving. Notice the one thing that all three of these groups have in common. None of them are trying to guess exactly when the bottom is. The cash holders already had their cash ready before the crash started. That's a place that long-term investors can remain in comfortably. The short sellers already had their position on. Nobody is timing anything perfectly. They're already positioned to benefit from the volatility itself, whichever direction it runs. And that's a very different story than trying to correctly predict the crash or even the peak of a market. And it's a much more learnable one at that. Now, here's the part that actually determines how much a crash costs you personally, your own psychology. Now, behavioral research on something called loss aversion has found that people feel the pain of a loss roughly twice as intensely as the pleasure of an equivalent gain. That's a primitive fight or flight kind of response. And it's exactly what pushes investors to panic sell at the worst possible moment right near the bottom when the fear is loudest. A crash does not stay confined to a stock chart. When people watch their portfolios and retirement accounts shrink, they feel poorer, so they cut back on spending. Companies feel that pullback and lower sales, so they freeze hiring. And sometimes they lay people off. That's the real economy absorbing what started as a financial effect. Now, this doesn't always land on everyone the same way. Picture a 62-year-old about to retire who may be forced to sell shares at a loss just to cover monthly expenses against a 22-year-old with decades ahead to let the same investment recover. The same crash, the same percentage drop, completely different real-world consequences depending entirely on when you need that money. And that's why it's also so important to have completely outside of your investment portfolio money set aside in your nest egg for a rainy day for your regular expenses so that you don't have to dip into your portfolio if the market crashes. And at the end of the day, a crash doesn't ask how old you are or how much time you have before it happens. It's important to be prepared for the ups and downs of the market. That is the price of long-term investing, but that can also be to your advantage as a long-term investor. Now, a couple of things worth knowing about market crashes. U.S. markets have built-in emergency breaks called circuit breakers. If the S&P 500 falls 7% in a single day, trading automatically hauls for 15 minutes. That's a forced pause, and that mechanism exists directly because of crashes that have happened in the past. Now, in terms of strategy, as a long-term investor, dollar-cost averaging, which is essentially investing a fixed amount on a regular schedule, that gives you the power to automatically buy more shares when they're cheap and fewer when they're expensive without ever having to guess where the bottom is. And that matters more than it sounds like it should. Roughly 42% of the S&P 500's best single trading days over the last 20 years happened during a bear market, not after it ended. And sitting it out in cash waiting for things to feel safe again, you might actually miss the sharpest, most valuable days of the entire market recovery. The market recoveries themselves are worth knowing. The median time for the market to fully recover a bear market's losses is about 92 trading days, or about four and a half months. The average is longer. That's around 10 months. And what happens after the bottom tends to be dramatic after the 2008 low. The market was up by 45% just a year later, 137% after five years, and 250% after 10. Go back to the 1980s, the crash in 1987. The market was up 21% a year after that, 93% after five years, and over 330% after 10. And then of course, there's the 2020 COVID bottom. The market was up nearly 75% in just 12 months. That was the fastest market snapback in over 150 years of market history. So the bottom line is that every major crash in US market history has eventually been followed by a full recovery to new highs, some in months and some in years, but always eventually. Now, of course, that history doesn't guarantee the next one plays out the same way. But it's the closest thing investing has to an unassailable track record. And the one guaranteed way to turn a temporary paper loss into a permanent real one is to sell at the bottom because the fear got too loud. If this helped you make sense of how stock markets work during bear markets, what happens to your money when the stock market crashes, leave us a comment, hit subscribe, and we'll see you in the next one.