Can make 5% a day? Sure! Can you safely make 5% each and every day for years? Absolutely 100% NOT! Anyone who says they can wants one thing - money from gullible investors. If anyone could make 5% each and every trading day, they wouldn't be running a HYIP. They would own the world.
Let's do the math. To make it slightly less criminal sounding, let's go for 1% per day. To simplify, we'll only compound once per month and consider each month to have 20 trading days (funny how many HYIPS promise to keep "earning profits from trading" when the markets are closed on weekends).
Begin - Invest $100
Month 1 - Balance $120 (1%, 20 trading days)
Month 2 - 144.00
Month 3 - 172.80
Month 4 - 207.36
Month 5 - 248.83
Month 6 - 298.60
Month 7 - 358.32
Month 8 - 429.98
Month 9 - 515.98
Month 10 - 619.17
Month 11 - 743.01
Month 12 - 891.61
So sad. You only turned $100 into $891.61. Now you are thinking, "See! Pharaoh doesn't know what he's talking about." To see the impossibility, we have to run the numbers for a little longer. It doesn't take a 3000 year old Pharaoh to start seeing numbers that are 100% impossible.
At this point, we know that ever $1 turns into $8.9161 dollars each year. Let's do yearly to save a lot of space.
Invest 100
Year 1 - 891.61
Year 2 - 7949.68
Year 3 - 70,880.18
Year 4 - 631,974.74
Year 5 - 5,634,750.02
Year 6 - 50,239,994.64 - $50 Million!
Year 7 - 447,944,816.24
Year 8 - 3,993,920,776.08 - Just under $4 Billion!
Year 9 - 35,610,197,031.57
Year 10 - 317,504,077,753.15
Year 11 - 2,830,898,107,654.89 - World's First Trillionaire!
Year 12 - 25,240,570,617,661.70
Year 13 - 225,047,451,684,134.00
Year 14 - 2,006,545,583,960,900.00 - $2 Quadrillion and counting!
Year 15 - 17,890,561,081,153,800.00
For comparison's sake, the GPP of the whole planet was about $70 Trillion (in standardized 1990 dollars) in 2011. Your money growth in this "perfectly reasonable investment" is easily outpacing inflation, so I'll skip figuring out exactly when you can buy 100% of EVERY product and EVERY service produced on the planet. My rough estimate would be sometime in Year 12 or 13. If you want to buy up 100% of the land and all existing products as well as all new products and services, you are probably looking at year 14, 15, or, worst case, 16 of your world conquest via HYIP plan.
Of course there's no reason to wait this long. There are plenty of HYIPS offering 5% or more per day. 5% times a mere 20 trading days would double your money each month. Each dollar would turn into 4096 dollars by the end of the year if we only compound monthly. Why bother with starting with $100. Just start with $1 and you'll have $281,474,976,710,656.00 ($281 Trillion - way more than the planetary GDP) in 4 years and over a Quintillion dollars by the end of year 5.
You have two choices:
1. You can keep believing the lies told by HYIPs and occasionally get some small profits out before they collapse while losing all that you put in most of the time.
2. You can do the math yourself and realize that their promises are fake and save your money.
Math doesn't lie. People who promise BS returns on HYIP websites do.