Why are my limit orders failing?

admin

Annoying issue for every trader, right? Limit order not getting executed seems to be such a common and normalized issue nowadays, so I wanna understand why that is from someone with more technical knowledge, I guess. So why are limit orders so prone to failing?

I was using a tool (don’t wanna name names) that said it supports limit orders, but a couple of mine never executed at all, even tho the price definitely hit. Like, I triple-checked the chart and everything.

Any idea why that might happen on DEX more than on CEX? Is it a bug, gas fee thing, or am I just missing something? What can you do to achieve better limit order success?

admin

i mean there could be a lot of reasons but it is usually because of slippage

admin

Yeah this happens a lot more on DEXs — usually because of low liquidity, slippage tolerances, or stale oracles. Even if the price “hits,” your order might not fill if the pool depth isn’t there or if your limit order wasn’t in a prioritized queue. Definitely not always user error — DEX infra still has quirks.

admin

Most likely you have slippage settings wayy too low and you don’t even know it or you’re trying to buy too much so you don’t have enough to cover gas/network fees. Also you might not have a high enough priority fee for your order