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$500 a month for 30 years is $180,000 of your own money. On a 7% assumption, it grows to about $585,000. More than 2/3 of the final number is money you never earned at work. That is an illustration, not a promise. Markets do not move in straight lines, and this video will show exactly what happens when they do not.
The method behind those numbers has a dull name, dollar cost averaging. It means investing the same amount on the same day every month no matter what the market is doing. It is not clever. It does not try to predict anything. And yet Warren Buffett wrote more than 30 years ago that a person who invests this way can actually outperform most investment professionals.
In this video, we are going to walk through all 30 years, one stretch at a time. The flat early years where nothing seems to happen. The year your money starts earning more than you add. The year the market falls by a third. And the last decade where most of the money arrives. At each stage, you will see what your own contributions were and what the market added on top.
Before we start, a quick question. Do you invest a fixed amount every month right now? Type yes or no in the comments. Either answer is fine and there is a part of this video for both. Let's start with what dollar cost averaging actually is. 32 1/2 shares. That is what 5 months of the same investment can buy when the price keeps changing.
Here is a simple example. You invest $500 every month into a fund. The price of one share moves around. In month one, a share costs $100. Your 500 buys five shares. In month two, the price drops to 80. Your 500 buys 6 and a/4 shares. In month three, the market has a bad stretch and the price falls to 50.
Your 500 buys 10 shares. In month four, it recovers to 80. 6 and a/4 shares again. In month five, it is back to 105 shares. Add it up. You invested $25,000 and you own 32 shares. The average price over those 5 months was $82, but your average cost per share was about 77. You paid less than the average price without trying to.
That happens for a simple reason. When the price is low, a fixed amount buys more shares. When the price is high, it buys fewer. So, the cheap months automatically carry more weight in your account. And notice something else. In month five, the price is exactly where it started. $100. Someone who invested everything in month one and did nothing else would be back to even you.
With your 32 shares, would be worth $3,250. 750 more than you put in. the bad month, the one that felt worst, did the most work for you. That is the whole idea of dollar cost averaging. You stop asking whether this is a good time to invest. You invest on schedule and let the schedule handle the timing.
Warren Buffett described this idea in his letter to Berkshire Haway shareholders for 1993. He wrote about investors who do not study individual businesses. And he said they should own a wide range of businesses and spread their purchases out over time. Then he wrote that by periodically investing in an index fund, the know nothing investor can actually outperform most investment professionals.
He added one more line which is worth remembering. When dumb money acknowledges its limitations, it ceases to be dumb. So dollar cost averaging is not a trick. It is a way of admitting that nobody knows what next month will bring and building a plan that does not need to know. Now, before we run that plan for 30 years, there is one honest question to answer first.
6,420 against 6,190. That is the difference after 1 year on a smooth 7% assumption. Here is the question. Suppose you have $6,000 to invest for the year. Should you put it all in on the 1st of January or spread it out at 500 a month? On a market that rises steadily, putting it all in at once wins. All $6,000 grow for the whole year, so it ends at about 6,420.
The monthly version ends at about 6,190 because the later months had less time to grow. Over 30 years on this smooth path, investing 6,000 every January ends at about 606,000 compared with about 585,000 for the monthly plan. So in a rising market, spreading money out costs a little. And over long periods, broad markets have risen more often than they have fallen.
Many studies of past data have found that investing a lump sum right away has often beaten spreading it out, though not always, and past results do not guarantee future ones. So, why does this video still recommend the monthly method? Two reasons. The first reason is that most people do not have a lump sum, they have a paycheck.
For most of us, investing every month is not a strategy we choose over a lump sum. It is simply investing as the money arrives. Dollar cost averaging is just the discipline of doing that every month without skipping. The second reason is behavior. The lump sum only wins if you actually invest it and then hold through whatever comes next.
Someone who puts in everything on Monday and watches it fall by 20% on Friday often panics and sells. The monthly investor feels that same fall as a chance to buy cheaper next month. The mathematically best plan is worthless if you cannot stick with it. A slightly less efficient plan that you will follow for 30 years is worth far more.
So if you receive a large sum, a bonus or an inheritance, the honest answer is that investing it sooner has often been better on paper and spreading it out is a reasonable choice if it helps you sleep and stay invested. For the money that arrives from your paycheck, there is no real choice to make. Invest it every month.
Now let's run the monthly plan for 30 years. $190. That is what the market adds in year 1. From here on we use one plan for the whole video. $500 at the end of every month. And we assume 7% growth a year. That is an assumption, not a promise. Real years will be very different from each other. The point is to see the shape.
At the end of year 1, you have put in $6,000. Your account shows about $6,190. The market's contribution is about $190. 12 months of discipline. $190 of reward. At the end of year 2, you have put in 12,000. The account is about $12,800. Total growth so far, about $800. Year 3 18,000 in about 19,900 in the account.
Year 5 30,000 in about 35,600 in the account. Total growth after 5 years about 5,600. Here is the honest truth about these 5 years. They are boring and they feel unfair. You gave up $30,000 of spending. You said no to trips and upgrades and nice dinners. And after 5 years, the market has added about $55,000.
Less than one year of your own saving. This is the stretch where most people quietly stop. Not dramatically. They just skip a month, then another. They tell themselves they will restart when things settle down. But look at what is actually happening. Every month you are buying more pieces of real businesses.
You are building the base that everything later grows from. The growth looks small because the base is still small. And here is the most important number from these five years. Your money is already earning something every single month. In year five alone, the account grows by about $2,100 on top of what you put in.
That is a third of your yearly saving earned without you. It does not feel like much, but it is about to start doubling and doubling again. If this kind of year-by-year breakdown is useful to you, subscribe to the channel. Every lesson here takes one of Warren Buffett's public principles and works through the numbers.
Now, let's look at the years where the line starts to bend. Year 11, that is the year your money starts earning more than you add. Keep going with the same plan. $500 a month, 7% a year as an assumption. At the end of year 8, you have put in $48,000. The account is about 63,500. That year alone, the market added nearly 4,000.
At the end of year 10, 60,000 in, about 85,500 in the account. Growth that year, about $5,400, almost as much as you saved. And then year 11, you put in $6,000, the same as always. And the account grows by about $6,200 on top of that. For the first time, the market added more in a year than you did.
This channel calls it the crossover year. It is not a sudden jump. Nothing special happens on the day. The account just quietly passes a size where 7% of it is bigger than $6,000. On this plan, that size is about $86,000. From here, every year, the gap widens. Your 6,000 stays the same. The market share keeps growing.
Think about what that means for how you feel. In year two, if you skipped 6 months, you would set yourself back $3,000, a quarter of everything you had built. In year 11, skipping 6 months still costs $3,000, but the account itself is now adding more than that every 6 months. Your effort is still important, but it is no longer the only thing moving the number.
There is something else worth noticing. It took 11 years to reach this point. not 11 months. Most people who start investing expect the crossover to arrive in the first year or two. When it does not, they decide the method does not work. The method works fine. It is just slow at the start on purpose.
And real life will interrupt these 11 years in ways that have nothing to do with markets. A job change, a move, a new baby, a month where the car, the dentist, and the rent all arrive at once. When that happens, the most important thing is the difference between reducing and stopping. If 500 a month becomes impossible for a while, drop to 100 or 50.
Keep the automatic transfer alive, even if it is small. Here is why. The amount can be raised again in a few minutes. The habit once broken often takes years to rebuild. Most people who stop completely do not restart when they plan to. And if you truly have to stop for a while, set a date to restart and put it in your calendar.
Not when things settle down. A date. Of course, the market will not be smooth during these years either. At some point, it will fall hard. So, let's look at that year directly. $17,000. That is what disappears from the screen in our example in a single bad stretch. Here is the scenario. You have been following the plan for 7 years.
your account is about $535,000. Then at the start of year 8, the market falls by a third. This is a madeup path to show what happens. In our version, prices drop by a third and then take 3 years to climb back to where the long-term trend would have put them. After that, they grow at 7% again. Real crashes are messier, some recover faster, some take much longer.
On the day of the drop, your account goes from about 53.5,000 to about $36,000. That is roughly $17,000 gone. Almost 3 years of your saving erased from the screen. Now meet three investors. They are made up, but every one of them is common. The first one keeps going. $500 a month through the whole fall and the whole recovery.
Same day, same amount. The second one pauses. They are scared, so they stop adding money for 3 years and restart once prices have recovered. The third one sells. They move everything to cash at the bottom. Keep saving 500 a month in cash and buy back in 3 years later once things look safe again. Here is where they each end up after 30 years on our assumptions.
If the crash had never happened at all, the plan would end at about $585,000. The first investor, the one who kept going, ends with about 603,000, more than if there had been no crash at all. The second investor, the one who paused, ends with about 508,000. The third investor, the one who sold, ends with about 463,000.
Same market, same income, a gap of $140,000 between the first and the third. And the only difference was what they did during three frightening years. Why does the first investor end up ahead of the no crash version? Because for 3 years, every $500 bought shares at a discount. Those cheap shares then grew for another 20 years.
Warren Buffett made this point in his letter to shareholders for 1997 with a famous little quiz. If you plan to eat hamburgers for the rest of your life and you are not a cattle farmer, should you want beef prices to go up or down? Down, obviously. Then he asked the same question about stocks. If you expect to be a net buyer of stocks for years to come, should you want prices to be high or low?
His answer was the same. You should want them low. Only people who are about to sell should be happy when prices rise. Most people feel the opposite. When their account drops, they feel poorer. But if you are going to keep buying for 20 more years, a fall is a sale. That does not make it easy. Watching $17,000 disappear is painful, and nobody should pretend otherwise.
That is why the plan matters. If the transfer is automatic, you do not have to find courage every month. The plan buys for you. And one more honest warning, this only works if the money you invest is money you will not need for many years. If a fall would force you to sell to pay rent, then you were not really investing that money.
That is why your emergency cash comes first outside the market. So, have you ever kept investing through a fall like this? Type yes or no below. We read every reply. $134,000. That is how much of your account is growth by year 20. Back to the smooth version of the plan. 500 a month, 7% a year as an assumption.
At the end of year 12, you have put in 72,000. The account is about 110,000. That year, the market added about 7,000 more than you did. At the end of year 15, 90,000 in about 155,000 in the account. Growth that year alone, close to $10,000. Then comes another quiet milestone. Around year 19, the total growth in your account becomes larger than everything you have ever put in.
Half of the money in the account is now money the market added. At the end of year 20, you have put in 120,000. The account is about 254,000. Growth that year about 16,400 almost three times what you added. This is the part people mean when they talk about compounding the snowball. Buffett has used that image for decades.
Find wet snow and a really long hill. The wet snow is what you invest in. Businesses that keep earning money. The long hill is time. And notice where we are on the hill. 20 years in and the snowball is only now getting big. Here is something else this stretch shows. By now, your monthly $500 matters less and less to the final number.
If you stopped adding money completely at year 20, the account would still grow to close to $500,000 by year 30 on our assumption. Your early years did most of the heavy lifting. But stopping still costs you. The next 10 years of contributions are worth about $85,000 by the end. That is real money, just not the most important money anymore.
The most important thing in years 12 to 20 is not adding more. It is not interrupting, not selling in a panic, not cashing out for a bigger house, not chasing something exciting with the money you have built. Charlie Munger, Buffett's partner for decades, put it in one sentence. The first rule of compounding is to never interrupt it unnecessarily.
If you are getting value from this, now is a good moment to subscribe. A new lesson goes up every 2 days. $82,000. That is what the same kind of fall erases when it arrives later. Let's run the scenario again, but move the crash. Same madeup path. The market falls by a third at the start of year 21, then takes 3 years to climb back to its long-term trend.
At the end of year 20, the account is about $254,000. After the fall, it shows about $172,82,000 gone from the screen on this plan. That is more than 13 years of your own monthly saving. This is the part nobody warns you about. The same percentage fall feels much worse later because the dollar amount is so much bigger.
In year 8, a third of the account was 17,000. In year 21, it is 82,000. Here is where the three investors end up after 30 years. If the crash comes in year 21, the one who keeps going ends with about 592,000. Again, a little more than with no crash at all. The one who pauses for 3 years ends with about 553,000.
And the one who sells at the bottom waits 3 years in cash and buys back in after the recovery ends with about 357,000. Read that again. Selling in the late crash costs about $235,000 compared with doing nothing special, more than the entire amount that investor ever put in. Why is the late sales so expensive?
Because the account is large and the recovery happens without you. You sell at the bottom, the market climbs back, and you buy in again at the top of the recovery. You have turned a temporary fall into a permanent loss. Notice also that pausing hurts less in year 21 than in year 8. Your monthly $500 matters less once the account is large.
What matters most late in the plan is not adding. It is not selling. So the rule changes slightly as the plan ages. Early on, the biggest risk is stopping. Later on, the biggest risk is panicking. This is also why many people gradually hold some safer assets as they get closer to needing the money. A fall of a third 10 years before you need the money is survivable.
The same fall in the year you retire is much harder. How to handle that is a personal decision and worth discussing with a qualified independent professional who knows your situation. $38,000 that is what the market adds in year 30. You add six. At the end of year 25 you have put in 150,000. The account is about 391,000.
That year, the market added about 25,000. At the end of year 30, you have put in 180,000. The account is about $585,000. In that final year, your contributions were $6,000, the same as in year 1. The market's contribution was about 38,000, more than six times as much. Compare that to year 1. In year 1, the market added $190.
In year 30, it added $38,000. Same plan, same $500 a month, 200 times more growth just from time. Now look at the whole 30 years at once. In the first 10 years, the account grows by about $25,000 more than you put in. In the second 10 years, about 108,000. In the last 10 years, about 271,000. Almost twothirds of all the growth arrives in the final decade.
The plan saves its best results for the end. This is why the start matters so much and why stopping early is so expensive. Every year you remove from the beginning is a year removed from the end where the growth is largest. Here is the same plan. $500 a month at 7% started at three different ages and stopped at 65.
Start at 25 and you end with about 1,200,000. Start at 35 about 585,000. Start at 45 about 254,000. 10 years of delay does not cost you 10 years of savings. It cuts the result by more than half. There is also a quieter force working against all of these numbers. Inflation. If prices rise 3% a year, then $585,000 in 30 years will buy roughly what $240,000 buys today.
That is still a meaningful amount, but it is much less than the headline number. The simplest defense is to let your monthly amount rise with your income. If you raise your 500 by 3% every year, roughly in line with prices, the 30-year plan grows to about $800,000, which is worth about $330,000 in today's money.
You would have put in about 285,000 in total. And if you add just $25 a month each year instead, so 500 then 525, then 550, the plan ends at about 870,000. you would have contributed about 310,000 small increases made every year change the result far more than people expect. And remember what those numbers depend on.
7% a year is an assumption. Over some 30-year periods, broad markets have done better. Over others, they have done worse. Inflation will also make the final number buy less than it would today. None of this is guaranteed. What the numbers show is the shape and the shape is the same in every version.
Slow, early, fast, late, four interruptions, and each one feels reasonable at the time. The first interruption happens in the flat part. Years 1 to 5, the account barely grows, and the money feels more useful somewhere else. People stop planning to restart. Most do not restart for years. The fix is to expect the flat part.
You now know what it looks like. $190 in year 1 is not a failure. It is the plan working exactly as designed. The second interruption happens in a fall. We saw what pausing costs. In our example, about $95,000 by the end compared with someone who kept going. Selling costs even more. The fix is automation.
Decide the amount once. Let the transfer happen on the same day every month. Do not log in to approve it. The plan is supposed to buy when you would not. The third interruption is the shortcut. Somewhere around year 8 or 10, a friend or an article or a video shows you something that went up much faster and the slow plan starts to look foolish.
Buffett has said that risk comes from not knowing what you were doing. Chasing whatever went up last year is one of the most reliable ways to buy high and then sell low. The fix is to separate your money. If you want to try something exciting, use a small separate amount that you can afford to lose completely.
Leave the plan alone. The fourth interruption is the upgrade. Around year 12 or 15, the account is large enough to buy something big, a car, a renovation, a dream trip, and it is right there. Taking out $40,000 in year 15 does not just cost 40,000. on our assumption that money would have grown to roughly 110,000 by year 30.
The fix is to name the account. This is not savings. This is the money for later and it has a job. And there is a quieter fifth habit that feeds all four. Checking too often. Markets move every day. Over any single day, a broad market falls almost as often as it rises. Over a month, it is still close to a coin toss.
Only over years does the upward drift become clear. So someone who checks every day sees a constant stream of small losses and small gains. And research on loss aversion suggests a loss tends to feel roughly twice as strong as a gain of the same size. That feeling is what pushes people to stop, pause, or sell.
Checking once or twice a year shows you the trend instead of the noise. You will miss nothing important. The plan does not need you to watch it. So those are the four plus the habit behind them. Stopping in the flat part, pausing in a fall, chasing a shortcut, cashing out for an upgrade, and checking too often.
None of them is about the market. All of them are about behavior. Which one do you think would catch you first? Type one, two, three, or four in the comments. Honest answers only. We read everyone. 125.8%. That is how much a plain S&P 500 index fund gained over 10 years in a bet Buffett made with a hedge fund firm.
The bet ran from 2008 to the end of 2017. On one side, a lowcost fund that simply owned the 500 large American companies in the S&P 500. On the other side, five funds that each invested in many hedge funds chosen by professionals. Buffett reported the result in his letter to shareholders for 2017. The index fund gained about 126% over the decade or about 8 12% a year.
The five groups of hedge funds gained between about 3% and about 88% in total over the same 10 years. Not one of them beat the plain index fund. Part of the reason was fees. professional management charges more and those costs come out of returns every single year and compound against you. This connects directly to the advice Buffett has given ordinary investors for decades.
In his letter for 2013, he described the instructions he left for money that will go to his wife. Put 10% in short-term government bonds and 90% in a very lowcost SNP500 index fund. And in 1993, as we saw, he wrote that periodically investing in an index fund lets the know nothing investor outperform most professionals.
So the method in this video is not something invented for a YouTube channel. It is close to the plainest version of what Buffett has said in public again and again. But there are important limits and they need to be said clearly. This is not financial advice for your situation. Nobody making a video knows your income, your debts, your taxes, or your goals.
An index fund can fall a lot. Broad markets have dropped by a third or more several times and stayed down for years. Dollar cost averaging does not prevent that. It just keeps you buying through it. 7% is an assumption. Your real result could be much lower or higher. And the order matters. Before investing for 30 years, most people need to clear highinterest debt and hold some emergency cash outside the market.
Buffett has said that if he owed money at 18%, the first thing he would do with any money he had is pay it off. The method is simple. The discipline is the hard part. $100 a month. That still becomes about $117,000 over 30 years on our assumption. $500 a month is a lot for many people. So, here is the same 30-year plan at different amounts.
At $100 a month, you put in $36,000 and the account grows to about 117,000. At 250 a month, you put in 90,000 and the account grows to about 292,000. At 1,000 a month, you put in 360,000 and the account grows to about 1,170,000. The shape is identical at every level, flat for a decade, a crossover around year 11.
Most of the growth in the last 10 years, only the size changes. So, the amount is less important than you think, and the habit is more important than you think. Starting with $100 this year beats starting with $500 5 years from now in most versions of the math. And you do not have to stay at the amount you start with.
Many people begin small and raise the amount every time their income goes up. Even adding 20 or $30 a month each year makes a large difference by year 30 because each increase also compounds. And if you are starting later at 45 or 50, 30 years may not be your horizon. That is not a reason to skip this.
It is a reason to look at a shorter table. Over 20 years, on the same assumption, $500 a month grows to about $254,000. $1,000 a month grows to about 58,000. Over 15 years, 1,000 a month grows to about 311,000. A shorter runway means the crossover arrives later in your plan, and the last decade is smaller.
So, two things matter more for a late start. Saving a larger share of your income because you have fewer years for growth to do the work and protecting what you have because there is less time to recover from a big mistake. Late starters cannot afford the shortcut or the panic sale. They can still afford the plan.
The one thing that does not work is waiting until you can afford the ideal amount. That day usually arrives later than you think, and the years before it are the ones the plan needed most. So, what amount could you start with this month? Type the number. 50, 100, 250, 500. No judgment. We read every reply.
Four steps. They take less than an hour. Once. Step one, build the floor first. Before investing for 30 years, keep some emergency cash in a separate savings account enough that a broken car or a surprise bill does not force you to sell your investments at a bad time. And if you carry credit card debt at high interest, paying that down comes before investing.
Step two, choose one simple, broad, lowcost option for the long-term money. For people who do not study businesses for a living, Buffett's public suggestion has long been a lowcost index fund that owns a wide slice of the market. This channel does not recommend any specific product, and you should check the costs and the rules where you live.
If your employer offers a retirement plan with matching contributions, many people start there because the match is money they would otherwise leave behind. Step three, automate it. Pick one date each month, ideally the day after payday. Set up an automatic transfer and an automatic investment for a fixed amount.
Then stop making the decision every month. The whole power of dollar cost averaging comes from not choosing the timing. Step four, look at it once or twice a year, not every day. Check that the transfer is still running. Raise the amount if your income has gone up and then close the app. Watching a 30-year plan every morning only makes the bad months feel worse.
When you do your yearly check, ask only three questions. Is the transfer still running? Can the amount go up now that your income has changed? Is your emergency cash still enough for your life as it is today? If the answers are yes, yes, and yes, close the app. You are done for the year. That is the whole system.
a floor of cash, one broad, lowcost choice, an automatic monthly amount, and a lot of not looking. It will feel too simple. That is part of why it works. Complicated plans give you more chances to interrupt them. Before we wrap up, a quick look at how this lesson was made. This channel is run by a small independent team.
Every number in this video comes from our own spreadsheet using the assumptions you heard. Every quote from Warren Buffett was checked against a public source and those sources are listed in the description. AI tools help us draft the script and produce the narration. This channel is not affiliated with Warren Buffett or Berkshire Hathaway.
So, let's bring it together. $500 a month for 30 years is $180,000 of your own money. On a 7% assumption, it grows to about $585,000. That is an illustration, not a promise, but the shape is real. The first 5 years are flat. $190 of growth in year 1. Around year 11 comes the crossover when the market starts adding more each year than you do.
When the market falls, the investor who keeps buying ends up ahead because every month of the fall buys shares at a discount. Pausing and selling cost tens of thousands of dollars, even in a madeup example. In the last decade, the money does most of the work. $38,000 of growth in year 30 against your 6,000.
Warren Buffett wrote that a no nothing investor who invests periodically in an index fund can outperform most professionals. The method is simple. The discipline is the hard part. If you have not started, start small and start this month. The video on your screen now goes deeper into one stretch of this journey.
It is about what happens after your first $100,000. Watch it next. And if you want the next lesson in this series, subscribe now. It goes up in 2 days.
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