Glossary
No jargon without an explanation. Every term used anywhere in AlphaRadar is defined here.
Ask
BasicsLowest price a seller will accept
When you buy at market, you normally pay the ask.
Example: Bid $2.40 / ask $2.46 — buying costs you $2.46.
Bid
BasicsHighest price a buyer will pay
When you sell at market, you normally receive the bid.
Example: Selling into a $2.40 bid gets you $2.40 per share.
Spread
BasicsGap between bid and ask
A round trip costs you the spread before anything else happens.
Example: A $0.06 spread on 500 shares is $30.
Volume
BasicsShares traded
A count of actual transactions, not an opinion about them.
Example: 4 million shares traded by 10am.
RVOL
Price behaviourRelative volume
Today's volume compared with normal volume for this time of day.
Example: 3x RVOL means three times the usual pace.
VWAP
Price behaviourVolume-weighted average price
The average price paid per share today, weighted by volume.
Example: Price $3.10 against VWAP $2.95 means today's average buyer is up.
Float
BasicsShares available to trade
Excludes locked-up and insider-held shares.
Example: A 6 million float can move violently on modest volume.
Market capitalisation
BasicsShare price × total shares
The market's current valuation of the whole company.
Example: 100m shares at $5 is a $500m market cap.
Support
Price behaviourLevel where buying has previously appeared
A reference point, not a floor.
Example: Price bounced at $2.80 three times this week.
Resistance
Price behaviourLevel where selling has previously appeared
A reference point, not a ceiling.
Example: Repeated failures at $3.00.
Breakout
Price behaviourPrice moving through a level
Describes movement, not outcome.
Example: Clearing $3.00 on rising volume.
Failed breakout
Price behaviourA breakout that immediately reverses
Extremely common and worth studying deliberately.
Example: Through $3.00, back to $2.90 in ten minutes.
Gap
Price behaviourOpen materially different from prior close
Usually caused by overnight news.
Example: Closed $2.80, opened $3.60.
Extension
Price behaviourHow far price has travelled from its average
Highly extended means the move has largely happened already.
Example: 25% above VWAP.
ATR
Price behaviourAverage true range
Typical daily movement in dollars — useful for sizing stops.
Example: An ATR of $0.38 means a $0.05 stop is unrealistically tight.
Momentum
Price behaviourRate of price change
Describes speed, not direction of the next move.
Example: Accelerating upward momentum into the open.
Liquidity
Market structureHow easily you can enter and exit
Low liquidity means wide spreads and difficult exits.
Example: A 40,000-share pre-market move is thin.
Market order
OrdersFills immediately at available price
Fast, but you do not control the price.
Example: Intended $3.00, filled $3.18.
Limit order
OrdersFills only at your price or better
You control price, not whether you fill.
Example: Limit $3.02 never fills if price runs to $3.20.
Stop order
OrdersBecomes an order at a trigger price
A risk tool, not a guarantee.
Example: Stop at $2.80 can fill at $2.55 in a gap.
Stop-limit
OrdersStop that becomes a limit order
Protects your price but may leave you unfilled.
Example: Stop $2.80, limit $2.78 — no fill below $2.78.
Bracket order
OrdersEntry with attached stop and target
Your exit exists before your entry does.
Example: Buy $3.00, stop $2.85, target $3.35.
OCO
OrdersOne cancels other
Two linked orders where filling one cancels the other.
Example: Target and stop as an OCO pair.
Time in force
OrdersHow long an order lives
Day orders expire at the close; GTC persist.
Example: A forgotten GTC order can fill weeks later.
Slippage
RiskDifference between intended and actual price
A real, recurring cost, worst in fast or thin markets.
Example: Wanted $3.00, filled $3.09 — $0.09 slippage.
Risk per trade
RiskMaximum acceptable loss on one trade
Not the amount invested — the amount you can lose.
Example: 1% of a $2,000 account is $20.
Position size
RiskNumber of shares, derived from risk
Risk ÷ stop distance.
Example: $20 risk, $0.20 stop distance = 100 shares.
Risk-to-reward
RiskRisk compared with potential gain
Only meaningful with a realistic target.
Example: Risk $0.20 to make $0.60 is 3:1.
Drawdown
RiskFall from your account's peak
Recovering requires a larger percentage gain than the loss.
Example: -50% needs +100% to recover.
Expectancy
RiskAverage expected result per trade
Combines win rate with average win and loss sizes.
Example: A 40% win rate can be profitable with large wins.
Pre-market
Market structureTrading before 9:30am Eastern
Thin liquidity, wide spreads, restricted order types.
Example: A 20% pre-market move on 40,000 shares.
After-hours
Market structureTrading after 4:00pm Eastern
Same risks as pre-market; not all securities trade.
Example: Earnings reactions often occur here.
Halt
Market structureExchange pause in trading
You cannot exit while halted; reopen prices can differ sharply.
Example: Halted $4.10, reopened $3.20.
Circuit breaker
Market structureAutomatic volatility pause
Triggered by rapid moves, market-wide or single stock.
Example: A limit-up/limit-down pause.
Dilution
Market structureNew shares issued
Each existing share represents a smaller slice afterwards.
Example: An offering priced below market.
Short interest
Market structureShares sold short and not yet covered
Describes positioning, not a forecast.
Example: 18% of float short.
Blue Pulse
BasicsAlphaRadar event marker
A record that defined, observable conditions changed. Not a signal or recommendation.
Example: Five of six conditions met at 10:04.