How Risky Is Home Depot Stock?

Home Depot (HD) stock has fallen 12.6% in a month, with no company news to explain it, while the S&P 500 slipped 0.3%. The loss came while the market was flat, so a market fall could further worsen the situation. Holders who stay are counting on the stock to recover as it did after past shocks. Holders are also counting on a business as profitable as it was then. So how risky is Home Depot stock if the market turns down.