Zero-day options are getting popular with retail investors. You should stay away

Mbbirdy | Getty Images

The stock market can be many things. It can be a vehicle for investing in your future by building wealth slowly over time in a disciplined way. It can provide opportunities to speculate on the outcomes of events or on winners and losers in different industries.

It can also be a magnet for gamblers, who view it as the world's biggest casino with an endless supply of bets to make and riches to win.

We obviously believe the "building wealth slowly" option is the best use case for stocks. After all, the longer the investment horizon, the lower the risk. Long-term investors can ride out a bad headline or quarter, or a misstep by management. We're not totally opposed to the "opportunities to speculate" option, so long as the investor understands the risk and reward of speculating. As the saying on Wall Street goes: "Your first loss is your best loss." That means if you get the trade wrong, you should take the small loss and move on. Don't throw more money at a hunch, even if it's backed with some research.