Just realized a lot of traders don't fully understand GTC orders, so figured I'd break down how they actually work and why they matter.

Basically, a GTC order (good 'til cancelled) is when you set a buy or sell price and just let it sit there. Unlike day orders that expire at market close, this thing stays active across multiple trading sessions until either it fills or you manually cancel it. Most brokerages auto-cancel them after 30-90 days, but that's the general idea.

The real appeal? You don't have to babysit the market. Say a stock is trading at $55 but you think it's overpriced. You genuinely see value at $50. Instead of checking charts every day hoping for a dip, you just place a GTC buy order at $50 and move on. When it hits that level, boom—order executes automatically. Same logic works for taking profits. You're holding at $80, set a GTC sell order at $90, and if it rallies there, you're out.

But here's where it gets tricky. Market volatility can work against you. A stock might dip temporarily due to noise, trigger your order, then keep falling. Or you get a gap situation—stock closes at $60, opens the next day at $50 after some overnight news, and your GTC sell order at $58 just filled way lower than you expected. This happens a lot around earnings or major economic events.

There's also the forgotten order problem. If you set a GTC and stop paying attention, market conditions can shift completely, but your old order just sits there waiting to execute under circumstances that no longer fit your strategy.

Compared to day orders, which expire at close, a GTC order gives you way more flexibility for longer-term price targets. Day orders are better if you're chasing quick moves and want tight control. GTC orders are for when you're patient and willing to wait days or weeks for a specific price level.

The key is staying aware. Periodically review your open orders, adjust them if conditions change, and maybe use stop-loss limits alongside them to manage downside risk. GTC orders are solid tools, but they're not set-and-forget—you still need to think about what you're doing.