You won't necessarily lose money if the stock market crashes. As a stock trading affiliate partner, you make money by referring traders to an online broker. You don't invest any money in the stock market. If there's a market crash, you may see a slow down in the number of referrals. Suppose you can adjust your marketing campaigns (particularly on social media). In that case, you may be able to use a bear market or a downturn to your advantage. It's also worth remembering that CFD stock traders can potentially benefit from any market movement. They can open a position on an individual stock in the anticipation that it will decline in value and still make a profit on the trade.