"Give me a dashboard of today's hot stocks: gap ups, winners, losers, options activity." Here's exactly what that dashboard shows and how to read it — with a simulated tape. Filter the 3D board, tap towers or rows, and learn what each signal actually means.
| SYM | GAP% | RVOL | OPT FLOW |
|---|
Gap % = (pre-market price − prior close) ÷ prior close. Gaps happen because news lands while the market is shut — earnings, FDA decisions, analyst calls. The chart literally jumps, leaving a price void with no trades in it.
Relative volume = today's volume ÷ 30-day average at the same time of day. A 5% gap on RVOL 0.8 usually fades; the same gap on RVOL 4+ has fuel. Pros filter gap lists by RVOL ≥ 2 before looking at anything else.
Statistically, most small gaps (<2%) fill the same day — price returns to prior close. Large news gaps with high RVOL tend to continue ("gap-and-go"). The edge isn't predicting which; it's letting the first 15 minutes confirm before entering.
Flagged when option volume runs far above open interest — someone is paying up for leverage. It's a hint, not a signal: hedges and spreads look identical to directional bets on a scanner. Combine with gap direction and RVOL, never trade it alone.
Simulated data for education only. Nothing here is investment advice.