if it was amazon or google who had a result like this, the stocks would be up with at least 5%
Well, the stock performance on any one day isn't statistically relevant unless you're a day trader. If you are investing for the long term, you need to look at long term returns.
Since you mentioned two of the FANG stocks, let's analyze a hypothetical portfolio of FANG stocks, AAPL, Berkshire-Hathaway, and a few index ETFs and how $10,000 in each would have performed over five years.
Let's say you have $100K in April 30th 2012 and invest $10K in five stocks: Amazon (AMZN), Netflix (NFLX), Google (GOOG), Apple (AAPL), Berkshire Hathaway Class B (BRKB), plus the following four index ETFs: Vanguard S&P 500 Growth (VOOG), PowerShares Nasdaq "Cubes" (QQQ), Russell 1000 (IWB), Russell 2000 (IWM). Facebook wasn't trading at the time, so let's say you purchase $10K of FB at year later on April 30th, 2013.
Here are the market value results at today's close (May 3rd 2017 adjusted for splits), ranked by ROI, not accounting for dividend payouts:
- NFLX: $132,251 (+1222%, no that is not a typo)
- FB: $56,014 (+460%, one year less in portfolio)
- AMZN: $41,405 (+314%)
- GOOG: $30,592 (+205%)
- BRKB: $20,674 (+106%)
- QQQ: $20,411 (+104%)
- VOOG: $17,868 (+78%)
- AAPL: $17,353 (+73%)
- IWB: $17,129 (+71%)
- IWM: $16,871 (+68%)
That $100K invested five years ago would be worth $370K today, an increase of +270%. The ROI increase of your portfolio would have been largely carried by the FANG stocks.
Now if you invested $25K apiece in just the four FANGs (with Facebook a year later), that FANG-only $100K investment would be worth $650,665 (+550%).
If you had invested all $100K in AAPL, the market value would be $173,530 (+73%).
If you had invested all $100K in "Cubes" and ignored the price of any given stock and just followed the Nasdaq market, the market value would be $204,110 (+104%).
If you were a more conservative investor and split the $100K between Nasdaq (QQQ) and S&P 500 Growth (VOOG), you still will have ended with $191,395 (+91%).
Or if you thought Warren Buffett was a canny investor and split the $100K three ways between QQQ, VOOG, and BRK, you will have ended up with $196,510 (+96%).
Sort of interesting to view it that way, no?


Disclaimer: I have own all of these securities in the past five years at some point in time. The only ones in my current portfolio from the list above are BRKB, QQQ, and VOOG. Of course, as an owner of those three symbols, I'm still an indirect shareholder of Apple. I'm happy that Apple has done well over the past few years, especially in the past year even though I dumped half of my AAPL shares a couple of years ago. The last lot was sold a couple of months ago.
The main takeaway here is that a diversified portfolio is a savvy investor's strategy. If you had invested in AAPL at certain points in their history, yes, you could have made a huge pile of money, but most people aren't that lucky.