Liquidity
How much of an asset can be traded quickly without moving its price. Deep liquidity means tight spreads and reliable fills; thin liquidity means slippage and partial fills. For retail-sized systematic trading in major ETFs, liquidity is rarely binding — but backtests on thin tickers deserve extra skepticism.
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Related terms
Bid-Ask SpreadThe gap between the highest price buyers will pay (bid) and the lowest…SlippageThe difference between the price a strategy expected and the price it …
Backtests are hypothetical, computed by DeployQuant's engine on minute-resolution consolidated US market data (2021-01-04 to 2026-07-17, $10,000 starting capital, no margin, fees and slippage not modeled) and do not guarantee future results. Nothing on this page is investment advice. Live trading involves risk of loss.