What Is an Order-Type Explainer (and Why Generic Definitions Aren't Enough)
Most retail trading mistakes don't come from a bad thesis — they come from misunderstanding what an order type actually does. A stop order doesn't guarantee your price. A limit order might never fill. A stop-limit order can fail to execute at all during a fast market move. Generic articles explain these concepts in the abstract, but abstract explanations don't help when you're staring at your own specific numbers, about to click submit.
Why This Needs Your Actual Numbers, Not a Definition
Contextual Order-Type Explainer takes the order type, side, and prices you're about to use and produces a specific explanation of what will happen — including explicit gap-risk warnings exactly when they apply, using your numbers, not a placeholder example.
Key Trader Pain Points and How This Extension Solves Them
| Pain Point | How the Explainer Solves It |
|---|---|
| You assume a stop order guarantees your exact price — it doesn't | Explicitly warns that a stop order can gap past its trigger price and fill significantly worse |
| A limit order you placed never fills, and you don't understand why | Tells you upfront whether your limit is likely to fill immediately or sit and wait, based on the current price |
| A stop-limit order failed to fill entirely during a fast move | Flags this exact failure mode before you place the order, not after it happens to you |
| Generic "what is a limit order" articles don't use your actual numbers | Every explanation plugs in your real prices, not a textbook example |
| Trailing stops are confusing — what's the actual current stop level? | Computes your effective stop price live, based on the current price and your trail amount |
How the Contextual Order-Type Explainer Works
Select an order type, enter a couple of numbers, and the explanation updates instantly — no submit button, no page reload.
Step 1 — Choose Your Order Type and Side
Select from Market, Limit, Stop, Stop-Limit, or Trailing Stop, and whether it's a Buy or Sell — the explanation logic differs meaningfully by direction, not just by order type.
Step 2 — Enter the Relevant Prices
Fields appear based on your order type — a Limit order asks for a limit price, a Stop-Limit asks for both a stop and a limit price, a Trailing Stop asks for a trail amount or percentage.
Step 3 — Read the Instant Explanation
The explanation card updates on every keystroke, with a headline, a plain-language description, and — where it genuinely applies — an explicit gap-risk warning in yellow.
Worked Example — A Stop-Loss Order
The setup: You hold a stock currently trading at $50. You set a stop-loss sell order at $45 to limit your downside.
What most traders assume: "If the price hits $45, I'll sell at $45."
What actually happens: At $45, your order becomes a market sell order. If the stock is trading normally, you'll likely fill close to $45. But if it gaps down overnight to $40 on bad news, your stop triggers and you sell at $40 — not $45.
The explainer's job: flag this gap risk explicitly, every time, so it's never a surprise.
Try It: Live Order-Type Explanation Demo
Change the order type, side, and prices below to see the same explanation the extension generates.
Where Traders Actually Use This
Newer Traders Learning Order Types
Someone placing their first stop-limit order can see immediately why it's different from a plain stop, using their own real trade setup instead of a textbook example.
Setting Protective Orders Before Earnings
Before a volatile earnings report, a trader checks whether their stop-loss's gap risk is worth accepting, or whether a stop-limit's fill-failure risk is the bigger concern for that specific setup.
Managing a Trailing Stop on a Winning Position
A trader with a runner position uses the live effective-stop calculation to understand exactly where their trailing stop currently sits, without doing the math by hand.
A Note on Accuracy
The explanations are based on standard, publicly documented order-type mechanics used across the retail trading industry — not a specific broker's proprietary implementation. All logic runs locally; no numbers you enter are sent anywhere except an optional license check for Pro features. If your broker has a nonstandard variation of an order type, this explains the general mechanics, not that specific quirk.
Common Mistakes (and How to Avoid Them)
Fix: A stop order becomes a market order once triggered — it can fill significantly worse than your stop price during a gap. If price guarantee matters more than fill guarantee, consider a stop-limit instead.
Fix: If the price gaps past your limit price before the order fills, you'll remain in the position with no order active — check the explanation's warning before relying on a stop-limit for downside protection.
Fix: Without it, the explainer can't tell you whether your limit will likely fill immediately or sit and wait — always include it for the full picture.
Fix: This explains standard order-type mechanics that apply broadly — for broker-specific execution quality questions, pair this with a tool like the Personal Execution Quality Scorecard instead.
Frequently Asked Questions
Does this connect to my broker account?
No. You enter the numbers manually — nothing connects to any broker session or account.
What's the real difference between a stop and a stop-limit order?
A stop order becomes a market order once triggered — it always fills, but not necessarily at your stop price. A stop-limit becomes a limit order once triggered — it protects your price, but can fail to fill at all if the market gaps past your limit.
How does the trailing stop calculation work?
It takes your current price and trail amount (dollar or percent) and computes what your effective stop level would be right now, assuming the current price is your recent high (for a sell) or low (for a buy).
Does this account for my specific broker's order handling?
No — it explains standard, industry-wide order-type mechanics. Broker-specific execution quirks aren't covered here.
What happens after the 14-day trial?
The explainer itself keeps working fully and forever, free. Pro unlocks saving a history of past explanations you've checked.
