This is the story of three friends, Tiffany, Brittany and Sarah who saved and invested in the US stock market over the last 41 years (1979-2020). All three saved $200 of their income per month for 41 years for a total of $99,000 each. But after 41 years they all ended up with different amounts based on their investment strategies.

Tiffany, Brittany and Sarah all knew the value of buying and holding. And they all invested in the same thing: an S&P 500 index fund. Once they bought, they never sold and always reinvested dividends. But they had different strategies about when to jump into the market.

Tiffany and Brittany were aware that the stock market could be very volatile and they wanted to avoid market crashes. It turns out they were right as there were five significant market crashes during the last 41 years as shown here:

US Stock Market Crashes 1979-2020

Dates of Crash Duration (Days) Percent Drop Event 8/25/1987-12/4/1987 101 33.4% Black Monday 7/16/1990-10/11/1990 87 19.7% Kuwait War 9/1/2000-10/9/2002 768 49.0% Dotcom Crash 10/12/2007-3/9/2009 514 56.5% Financial Crisis 2/19/2020-3/23/2020 33 34.1% COVID Crash

Tiffany Top invests at the top of the market

Tiffany, it turns out, has the world’s worst market timing. She saved her $200/month in a savings account getting 3% interest until the worst possible times. She started by saving for 8 years only to put her money in at the absolute market peak in 1987, right before Black Monday and the resulting 33% crash. But she never sold, and instead started saving her cash again, only to do the same at the next five market peaks. Each time she invested the full amount of her saved cash only to watch the market crash immediately after. Most recently she put all her money in the day before the 2020 COVID crash, only to see it immediately drop 34%. She’s been saving cash ever since waiting for the next market peak.

With this perfectly bad market timing, Tiffany still didn’t do too bad. Her $99,000 she saved and invested over the last 41 years is now worth $773,358. Even though she invested only at each market peak, her big nest egg is thanks to the power of buying and holding. Since she never sold, her investment always recovered and flourished as the market inevitably recovered far surpassing her original entry points.

Brittany Bottom invests at the bottom of the market

Brittany, in stark contrast to Tiffany, was omniscient. She also saved her money in a savings account earning 3% interest, but she correctly predicted the exact bottom of each of the five crashes and invested all of her saved cash on those days. Once invested, she also held her index fund while saving up for the next market crash. It can’t be overstated, how hard it is to predict the bottom of a market. In 1990 with war breaking out in the Middle East, Brittany decided to dump all her cash in when the market was only down 19%. But in 2007, the market dropped 19% and she didn’t jump in until it fell all the way down to a 56% drop, again perfectly predicting the exact moment it had no further to fall and dumped in all of her cash just in time for the recovery. Just this year in 2020, Brittany wisely waited until March 23rd to dump her savings into the market, buying at a steep 34% discount.

For this impossibly perfect market timing, Brittany Bottom was rewarded. Her $96,000 of savings has grown to $1,123,573 today. It’s certainly an improvement, but interesting to note that when comparing the absolute worst market timing versus the absolute best, the difference is only a 45% gain. Both Brittany and Tiffany have the vast majority of their growth thanks to buying and holding a low cost index fund.

Sarah Steady auto-invests every month

Sarah was different from her friends. She didn’t try to time market peaks or valleys. She didn’t watch stock prices or listen to doomsday predictions. In fact, she only did one thing. On the day she opened her account in 1979, she set up a $200 per month auto investment in an S&P 500 index fund. Then she never looked at her account again.

Each month her account would automatically invest $200 more in her index fund at whatever the current price happened to be. She invested at every market peak and every market bottom. She invested the first month and the last month and every month in between. But her money never sat in a savings account earning 3% interest.

When Sarah Steady was ready to retire, she signed up for online access to her account (since the internet had been invented since she last looked at it). She was pleasantly surprised with what she found. Her slow and steady approach had grown her nest egg to $1,620,708. Even though she didn’t have Brittany’s perfect ability to know the bottom of the market, Sarah’s investment crushed Brittany’s by about $500,000.

Recap

Amount Saved/Invested: $99,000 each

Investment: Buy and hold an S&P 500 index fund

Tiffany (worst timing in the world): $773,358

Brittany (best timing in the world): $1,123,573

Sarah (auto invests monthly): $1,620,708

Tiffany, Brittany and Sarah aren’t real. No one can perfectly predict market tops or bottoms. But these numbers are real, based on the exact returns of an S&P 500 index fund and a 3% interest savings account over the last 41 years. Here is the spreadsheet I used to generate these results.

So if you’re worried the market is too high and we’re due for a crash. Or you want to wait for the inevitable drop before you put your money in. Think about whether you’re so good at predicting the market you can do it better than Brittany who knew when to invest down to the exact day. And even if you are that good, realize that it’s still a losing strategy to the early and often approach that Sarah executed so flawlessly.

As always, live below your means and invest early and often and you’ll win with money.

Jeremy

Here’s a more visual journey as told on the PFC instagram

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