$RWUSD |Volume surged 19.9x in 5 minutes|Price barely moved
Before looking at fund flows, first understand trading volume.
Multiples are relative: for a normally quiet coin, a several-fold increase may be caused by just one or two large orders, while the same increase in a major coin is much rarer.
A surge in volume may also come from widespread liquidations: liquidation orders are executed involuntarily, so this kind of volume surge means something different from voluntary trading. Consider liquidation activity as well.
Any indicator is a summary of what has already happened, and the market could just as easily move in the opposite direction.

These could be wrong too—don't treat them as advice.