Match the period to the question
A daily table can highlight recent activity, while a longer period can help avoid making an entire assessment from one unusual day. A hypothetical venue with $70 million over seven days averages $10 million per day by simple division, but that average does not mean each individual day recorded $10 million. Compare equal windows before calling one venue more active than another.
Understand chain filtering and share
The deployment-chain filter selects global DEX records that include the chosen chain. Their displayed volume remains protocol-wide. Use the separate chain-specific DEX page when the question concerns activity within one network. The share column uses the sum of valid returned reporting rows before your filters. A separately shown provider aggregate can differ from that row sum because of grouping and coverage; those denominators should not be silently substituted.
Volume does not quote your execution
A venue can report substantial past turnover while offering poor liquidity for the token, pool or trade size you need now. Volume also does not reveal the number of independent traders or the commercial quality of their activity. After identifying a DEX, inspect relevant token pools and compare current reported liquidity with the past flow. Missing period totals are excluded rather than filled with zero. Keep the selected period and source receipt with an exported ranking so it remains interpretable after market activity changes.