Scanner Issues
"No results found" when scanning
Symptoms: Scanner returns 0 results, but you expect matches
Common causes:
-
Filter too restrictive
- Try loosening thresholds (
rsi(14) < 30→rsi(14) < 35) - Remove one condition at a time to find the blocker
- Test on a known watchlist first
- Try loosening thresholds (
-
Syntax error in filter
- Check for typos:
sma(20)notsma20 - Operators:
andnot&&,ornot|| - See Formula Syntax
- Check for typos:
-
Symbol source issue
- Empty watchlist → 0 results
- Check watchlist has stocks: click "Edit Watchlist"
- Try
universe:marketto test filter
-
Market closed
- Some filters need intraday data
- Volume-based scans may fail pre-market
Solutions:
✅ Test with simple filter first:
c > 10
If this returns results, your filter is the problem.
✅ Check filter step-by-step:
# Start simple
c > sma(20)
# Add conditions one at a time
c > sma(20) and rsi(14) < 70
# Keep adding until results disappear
c > sma(20) and rsi(14) < 70 and v > sma(v, 20) * 2
✅ Use realistic thresholds:
rsi(14) < 30→ Few stocksrsi(14) < 35→ More stocksrsi(14) < 40→ Many stocks
"Syntax error" in formula
Symptoms: Red error message, scan won't run
Common mistakes:
| ❌ Wrong | ✅ Correct | Reason |
|---|---|---|
sma20 | sma(20) | Functions need parentheses |
c > 100 AND v > 1M | c > 100 and v > 1000000 | Lowercase and, no abbreviations |
rsi < 30 | rsi(14) < 30 | Missing period parameter |
price > 50 | c > 50 | Use c not price |
ma(50) | sma(50) | Use sma not ma |
c > sma(20) && v > 1M | c > sma(20) and v > 1000000 | Use words not symbols |
Solution:
✅ Copy a working example from Cookbook recipes
✅ Build formula incrementally:
- Start:
c > 10 - Add:
c > 10 and rsi(14) < 50 - Add:
c > 10 and rsi(14) < 50 and v > sma(v, 20)
Scanner is slow (> 10 seconds)
Symptoms: Scan takes forever, shows "Loading..."
Causes:
-
Universe scan on first run
universe:marketscans 7,000+ stocks- First run warms cache (3-5 seconds)
- Subsequent runs faster (1-2 seconds)
-
Complex formula
- Many nested functions slow down
- Example:
sma(rsi(14), 20) > 50 and macd() > macd_signal() and ...
-
Network issues
- Slow connection to server
- Check internet speed
Solutions:
✅ Use watchlists for testing:
- Scan 50 stocks = 0.5 seconds
- Perfect for iterating on formulas
✅ Simplify complex formulas:
- Remove unnecessary conditions
- Pre-filter by market cap:
market_cap > 1B and ...
✅ Wait for cache warm-up:
- First scan after market open = slower
- Second scan = fast
Results look wrong
Symptoms: Stock appears in results but shouldn't match filter
Debugging:
-
Check current values
- Look at the displayed columns
- Does
rsi(14)actually show < 30? - Add columns to verify:
c,sma(20), etc.
-
Data delay
- Results are 5-minute delayed
- Price may have moved since scan
- Refresh page to get latest data
-
Misunderstanding formula
roc(1)= 1-day return (not 1% return)v > 1000000= volume > 1 million sharesmarket_cap > 1Bneeds1000000000not1B
Solution:
✅ Add debug columns:
# If filter is: rsi(14) < 30 and c > sma(50)
# Add columns: rsi(14), c, sma(50)
# Verify each value manually
✅ Test on single stock:
- Create watchlist with 1 stock (e.g., AAPL)
- Run filter on that watchlist
- Should be obvious if it matches or not
Workspace Issues
Pane won't open / blank screen
Symptoms: Click tool, nothing happens or white screen
Solutions:
✅ Hard refresh:
- Mac: Cmd + Shift + R
- Windows: Ctrl + Shift + R
- Clears cache and reloads
✅ Check browser console:
- F12 → Console tab
- Look for red errors
- Screenshot and report if found
✅ Try different browser:
- Chrome (recommended)
- Firefox
- Safari
- Edge
✅ Clear site data:
- Browser Settings → Privacy → Site Data
- Find stockvyze.com → Clear
- Reload page
Keyboard shortcuts not working
Symptoms: Pressing k, a, ? does nothing
Solutions:
✅ Click outside inputs:
- Click on empty workspace area
- Then press shortcut
✅ Disable extensions temporarily:
- Test in incognito mode
- If works → extension conflict
✅ Use mouse alternatives:
k→ Click "+" icon to add pane?→ Click "?" help button- Cmd+K → Click search box
Can't split/resize panes
Solutions:
✅ Use the Split button:
- Click the pane Split button
- Choose Left, Right, Above, or Below
- Press
Escto cancel split mode
✅ Check maximized state:
- If pane is maximized, restore it first
- Double-click the pane header or use More → Restore
- Then split
✅ Resize handle:
- Hover between panes for resize cursor
- Click and drag border
Watchlist Issues
Watchlist not showing in scanner
Solutions:
✅ Check watchlist has stocks:
- Open Watchlist pane (Cmd+K → Watchlist)
- Should show at least 1 stock
- If empty, add stocks
✅ Use correct syntax:
wl[Tech Stocks] # ✅ Correct (with spaces)
wl[MyWatchlist] # ✅ Correct (no spaces)
wl(Tech Stocks) # ❌ Wrong (use brackets)
"Tech Stocks" # ❌ Wrong (not a watchlist)
✅ Special characters:
- Avoid:
[],{},()in watchlist names - Use: Letters, numbers, spaces, hyphens
Can't add stock to watchlist
✅ Check duplicate:
- Stock may already be in watchlist
- Scroll to verify
✅ Refresh watchlist:
- Close and reopen Watchlist pane
- Sometimes state gets stale
✅ Create new watchlist:
- "New Watchlist" button
- Add stock to fresh list
- Test if it works
Data Issues
"Symbol not found"
✅ Search for company name:
- Cmd+K → Type company name
- Find current ticker
✅ Check if U.S.-listed:
- Must trade on NYSE, NASDAQ, or AMEX
- OTC/pink sheets not supported
✅ Verify inline syntax:
s:AAPL,MSFT,GOOGL # ✅ Correct
s:AAPL MSFT GOOGL # ❌ Use commas between symbols
AAPL,MSFT,GOOGL # ❌ Missing s: prefix
Prices seem outdated
✅ Check market hours:
- Market open: 9:30 AM - 4:00 PM ET
- Pre-market/after-hours slower updates
✅ Refresh results:
- Click "Apply" button again
✅ Wait 5 minutes:
- Data updates every 5 minutes by design
Missing fundamental data
✅ Filter out nulls:
market_cap > 100M and pe > 0
✅ Check stock type:
- Common stocks: ✅ Full data
- ETFs: ⚠️ Limited fundamentals
- Warrants: ❌ No fundamentals
Live Screen Issues
No notifications from live screen
✅ Check live screen settings:
- Click gear icon → Notifications
- Ensure alerts enabled
✅ Browser permissions:
- Allow notifications for stockvyze.com
✅ Keep tab open:
- Live updating requires the tab/browser to stay active
Can't save as live screen
✅ Apply filter first:
- Must click "Apply" at least once
✅ Fix formula errors:
- Resolve red validation text
✅ Check if already saved:
- Look at workspace tabs
Performance Issues
App is slow / laggy
✅ Close unused screens:
- Each live screen keeps polling
- Keep 3-5 active max
✅ Split large watchlists:
- Break 1,000-stock lists into smaller ones
✅ Update browser & close other heavy tabs
Network errors / timeouts
✅ Check internet (speed test)
✅ Disable VPN temporarily
✅ Whitelist stockvyze.com if behind firewall
✅ Retry later (server hiccups auto-resolve)
Login / Account Issues
"Invalid credentials"
✅ Reset password via "Forgot Password"
✅ Check email spelling
✅ Clear autofill if browser stored old password
Session expired / logged out
✅ Normal: S