One year is too short to say something. Spend five or ten years so find a significant PnL result. 1)If you like to say "I kept annual compounded 10% for 5 years", then your initial seed of 100 should become 100*1.1^5 = 161.051 which is 61%. 1)If you like to say "I kept annual compounded 20% for 10 years", then your initial seed of 100 should become 100*1.2^10 = 619.1736 which is 519%. after tax and commission, of course. If you are following Buffets result, then you should keep 20% for 50 years.
If you have an army with 100 soldiers this year, annual 20 percent above means those 100 soldiers should conquer 20 soldiers (from outside country?) yearly in average to become 120 soldiers. Next years 120 soldiers becomes 100*1.2^2=144 soldiers. How about 50 years later?
Good, If you have record of annual compounded 80% for last three years, and if you are confident the anuual percentage long time (for example 50 years). Then you current asset is expected to grow 1.8^50 = 5802635025810 times after 50 years. If you have saving of 100K (for example) in current seed, then you shall be the most rich man in the world 50 years later. Even if you have only 10K in seed, then same is true. Congratulation! PS) Quite possibly, Buffet and Gates (their grandson) should be broke after 50 years if so.
Do you actually believe that this: "Then you current asset is expected to grow 1.8^50 = 5802635025810 times after 50 years" can happen in real life? Or would you maybe think that it will get pretty difficult to trade $5.8 Trillion (and that's based on starting out with $1,-) in ANY product to create ANY profit without completely derailing the ENTIRE market? Ever heard of 'slippage'? What do you think the slippage will be on a $5.8 Tr round trip?
The sky is the limit! Or in Elon Musk's case... since he shot a car into space, The sky is NOT the limit!