Do Not Reduce (DNR) is an order qualifier you attach to a Good-til-Canceled limit order or stop order to prevent your broker from automatically lowering the order's price on a stock's ex-dividend date. Without DNR, brokers reduce below-market GTC orders by the dividend amount on the ex-dividend date to account for the expected drop in the stock's price. DNR tells the broker to leave your original price intact regardless of the dividend adjustment.
DNR applies only to ordinary cash dividends. It does not apply to stock dividends, rights issues, or stock splits, which are handled under different adjustment rules.
When a stock goes ex-dividend, its price typically falls by the dividend amount at the open. A stock trading at $50 paying a $1 cash dividend will open near $49 on the ex-dividend date. If you have a GTC buy limit order sitting at $50, your broker reduces it to $49 to match that new expected price level. This prevents your order from triggering immediately at the open simply because of the dividend drop rather than any real change in market conditions.
That automatic adjustment protects you in most cases. But if you deliberately set your limit at $50 because you believe that price represents fair value with or without the dividend, the auto-reduction defeats your intent. DNR preserves your original conviction.
DNR applies to a specific set of pending orders placed below the current market price. These are the order types where the automatic dividend reduction is standard practice and where DNR overrides it.
DNR does not apply to day orders, market orders, or orders placed above the current market price, because brokers do not adjust those for dividends under standard rules.
Stock XYZ trades at $50. The company declares a $1 cash dividend with an ex-dividend date three days from now. You have a GTC buy limit order at $50.
Without DNR: your broker reduces the limit price to $49 on the ex-dividend date. If the stock opens at $49, your order may execute at a price that includes the dividend discount, which was not your original intent.
With DNR: your limit stays at $50. The stock opens at $49. Your order remains unfilled because $49 is below your $50 limit. You only buy if the price returns to or above $50, reflecting actual market demand rather than just the dividend-driven price drop.
Use DNR when your limit or stop price reflects a fundamental price level that should hold regardless of dividend activity. If you believe a stock is only worth buying above $50 because of its earnings power, a $1 dividend reduction is not relevant to that thesis.
Skip DNR when your order price was set relative to the pre-dividend stock value and you want the adjustment to keep your order correctly positioned after the dividend. Most passive buy-limit strategies benefit from the automatic adjustment rather than DNR.
Not all brokers offer DNR for every security. Fidelity documents it explicitly as an available order qualifier for GTC orders. Interactive Brokers supports it through their order management system. Some smaller retail brokers may not offer it at all. Confirm whether your broker supports DNR before relying on it, and check whether it applies to the specific security type you are trading.