Sorry for my super noob question, just trying to check my understanding.
If I make a small, but long term investment in a stock at a certain level, and that stock falls down by the amount that I invested, that means that the whole investment has been lost. Is that correct?
For example: If I buy a fraction £100 worth of NVIDIA Corporation shares at £500 and the the value of NVDA falls to £400 per share, then I would lose the £100 fraction investment? If this is correct, then assuming that it falls to £450, but then raises up to £550, how does that reflect with my fraction investment of £100?