Wait, margin accounts? With long positions? On an undiversified portfolio, let alone ETF? What is this fuckery, sure, it's legal, but no normal broker would try to ruin their clients like this, she's using some shitty dirty company, not a proper hedge fund. But god the author tries to picture stocks as some scam. Though, knowing how much an average Japanese knows about stocks, no surprise here. I guess.
Also this 'sure, they'll be up in half a year' shit. Yeah, if only we could guess it just like this. Even Buffet doesn't know where the market will be in three years. Ugh, some writers.
P.S. Long investment for old people is actually not as interesting as speculation, she's loosing money anyway. Longs are for people with a bunch of time and a stable work.