What stocks were up ofer 500 % last week?

Screening Filters

1. week_price_change_pct: { min: 500 }

   • Purpose: Find stocks whose price increased by at least +500% over the last week.
   • Rationale:
     • Your question: “What stocks were up over 500% last week?”
     • “Up over 500% last week” is exactly captured by this filter: it keeps only stocks whose weekly percentage gain ≥ 500% (i.e., ≥ 6× their price from a week ago).
     • This is an extremely high threshold; even highly volatile small caps and biotech names rarely show a genuine +500% move in a single week on major exchanges.

2. list_exchange: ['XNYS', 'XNAS', 'XASE']

   • Purpose: Limit results to stocks listed on major U.S. exchanges:
     • XNYS = NYSE
     • XNAS = NASDAQ
     • XASE = NYSE American (formerly AMEX)
   • Rationale:
     • These exchanges cover most well-tracked, regulated U.S. listed stocks.
     • Excluding OTC/pink-sheet or foreign exchanges reduces noise from illiquid or poorly documented names where extreme percentage moves might just be bad prints or data errors.
     • This aligns with typical investor focus and data reliability.

Do the Filters Match Your Request?

• Yes, the filters directly match what you asked:
  • You asked for: “stocks… up over 500% last week?”
  • We screened for: week_price_change_pct ≥ 500% over the last week on major U.S. exchanges.
• We are using indicators that we fully support (weekly price change and exchange listing), so there’s no substitution here—your request is being followed literally.

Why No Results Were Returned

• Moves of +500% in a single week on NYSE/NASDAQ/AMEX are extraordinarily rare.
  • Genuine 5× moves in one week typically occur, if at all, in:
    • Very low-priced microcaps,
    • Highly illiquid or distressed names,
    • Sometimes in OTC or non-U.S. markets (which we excluded).
• On major U.S. exchanges, such a move is usually associated with:
  • Trading halts, restructurings, reverse splits, or data anomalies,
  • Or extremely unusual events (and even then, still rare).
• Given that we’re searching the recent past (last week only) and restricting to these exchanges, it’s not surprising that no stock met the ≥500% weekly gain filter.

Would You Like to Adjust the Filters?

To actually see names, we’ll almost certainly need to lower the threshold. For example, we could try:

• week_price_change_pct ≥ 100% (doubled in a week), or
• week_price_change_pct ≥ 50% (up at least 50% in a week).

We can also:

• Keep the focus on major U.S. exchanges, or
• Expand to include more venues (with the caveat of more noise and lower-quality names).

What minimum weekly gain would you like to use instead—100%, 50%, or another level?