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Polymarket exit liquidity risk: why getting out can be harder than getting in
A market can look attractive at the visible price and still be fragile when you try to exit. RealityGap treats this as execution quality, not prediction quality: the question is whether the orderbook can support both entry and exit without a sharp price penalty.
No wallet. No trading. No predictions. This is execution-quality education only, not financial advice.
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What exit liquidity means
Exit liquidity is the amount of bid-side demand available when you want to sell shares back into the orderbook. Entry usually consumes asks. Exit usually consumes bids. A market can have enough asks to let you enter, but weak bids when you need to get out.
That asymmetry is the core risk: you can enter a position cleanly, then discover that the realistic exit price is worse than the headline market price suggested.
Why visible prices can hide exit risk
A visible market price often compresses a lot of information into one number. It does not always tell you whether the bid side is deep enough for your actual position size.
- A narrow displayed price can still have shallow bids.
- A small entry can be clean while a larger exit becomes expensive.
- A market can show activity without having enough depth at the prices you care about.
- Exit risk grows when the best bid is thin and lower bid levels drop quickly.
How RealityGap thinks about Exit Risk
RealityGap is designed to compare the visible price with executable conditions. For exit liquidity, the important question is not whether the market is right or wrong. The question is whether the bid side can absorb the shares you might need to sell.
In practical terms, an Exit Risk warning means the market may be easier to enter than to unwind. That does not predict the outcome. It only flags that execution quality may be weaker on the way out.
Simple example
Imagine you can buy shares near 40¢ because there are enough asks available. After entering, you look at the bid side and find only a small amount near 36¢, with the next available bids much lower.
The entry may have looked acceptable, but the exit path is fragile. Your realistic exit price could be materially worse than the visible price you used to judge the market.
How to use this concept
Exit liquidity risk is most useful as a pre-trade caution signal. Before treating a displayed price as actionable, check whether the orderbook has enough bid-side depth for the size you care about.
RealityGap does not tell you what to buy or sell. It helps you inspect whether the market structure is clean, fragile, or dangerous before you act.
Related execution-quality concepts
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