Market Movers | Winners: ATTO, JUNS, XHLD | Losers: TDUP, BLLN, UWMC
A day of modest index declines was dominated by a single, astronomical gain, raising questions about the nature of market extremes.
Major indices finished lower, with the S&P 500 returning -0.2% and the Dow Jones Industrial Average returning -0.9%. Yet the day’s defining feature was a single, enormous gain: Attovia Therapeutics (ATTO) returned +2.03799E7%. When one stock’s move is this extreme, what can it possibly tell us about the market? The day’s full leaderboards follow.
Thursday’s Market Winners
The 10 stocks with the highest returns on the last trading day:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | ATTO | Attovia Therapeutics | 20379900.0% | n/a |
| 2 | JUNS | Jupiter Neurosciences | 7214.9% | 452.2% |
| 3 | XHLD | TEN | 252.6% | 138.1% |
| 4 | CLRO | ClearOne | 166.3% | 92.5% |
| 5 | CELZ | Creative Medical Technology | 71.9% | -41.3% |
| 6 | SURG | Surgepays | 45.5% | -80.5% |
| 7 | ENSC | Ensysce Biosciences | 44.8% | -43.0% |
| 8 | IOVA | Iovance Biotherapeutics | 43.1% | 127.5% |
| 9 | HNST | Honest | 40.8% | 110.1% |
| 10 | ASPN | Aspen Aerogels | 37.5% | 143.5% |
Thursday’s Market Losers
And the 10 stocks with the lowest returns:
| # | Ticker | Company Name | 1-D Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | TDUP | ThredUp | -50.5% | -51.3% |
| 2 | BLLN | BillionToOne | -38.9% | 12.0% |
| 3 | UWMC | UWM | -34.8% | -70.5% |
| 4 | BGI | Birks | -34.7% | -61.6% |
| 5 | UTI | Universal Technical Institute | -34.2% | 6.7% |
| 6 | BIVI | BioVie | -33.8% | 16.4% |
| 7 | ONT | Onterris | -33.3% | -39.2% |
| 8 | CMRC | Commerce.com | -32.0% | -43.7% |
| 9 | LZ | LegalZoom.com | -30.1% | -43.0% |
| 10 | EBS | Emergent BioSolutions | -29.6% | -57.0% |
How persistent are these explosive moves?
The data shows these are often single-day events, not sustained trends. Attovia Therapeutics (ATTO) appears on both the one-day and one-month winners lists, but its entire one-month return of +2.03799E7% came from today’s session; other sessions this month returned +0.0%. Similarly, Jupiter Neurosciences (JUNS) shows a one-month return of +2821.4%, but sessions excluding today actually returned -60.1%. These are spikes of activity, not steady climbs.
Movers Over The Last Week
Widening the window to five trading days, these are the strongest and weakest Market names:
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | ATTO | Attovia Therapeutics | 20379900.0% | n/a |
| 2 | JUNS | Jupiter Neurosciences | 5676.9% | 452.2% |
| 3 | FWAC | Futurewave Acquisition | 461.9% | 287.8% |
| 4 | AMIX | Autonomix Medical | 239.0% | 5.4% |
| 5 | HYFM | Hydrofarm | 211.0% | 21.9% |
| 6 | XHLD | TEN | 157.8% | 138.1% |
| 7 | REPL | Replimune | 137.7% | 32.3% |
| 8 | CLRO | ClearOne | 127.4% | 92.5% |
| 9 | ENSC | Ensysce Biosciences | 104.0% | -43.0% |
| # | Ticker | Company Name | 1-W Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | NXTT | Next Technology | -86.0% | -98.8% |
| 2 | GYGY | Game Your Game | -80.4% | n/a |
| 3 | KPTI | Karyopharm Therapeutics | -72.2% | -73.5% |
| 4 | MBRX | Moleculin Biotech | -62.3% | -88.4% |
| 5 | CYCU | Cycurion | -58.4% | -75.7% |
| 6 | BIOA | Bioage Labs | -54.6% | -14.8% |
| 7 | YYAI | Airwa | -53.1% | -99.7% |
| 8 | TDUP | ThredUp | -47.0% | -51.3% |
Movers Over The Last Month
And over the last 21 trading days:
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | ATTO | Attovia Therapeutics | 20379900.0% | n/a |
| 2 | JUNS | Jupiter Neurosciences | 2821.4% | 452.2% |
| 3 | SHOT | RMG ML Sports | 649.6% | 280.6% |
| 4 | FWAC | Futurewave Acquisition | 550.7% | 287.8% |
| 5 | FBRX | Forte Biosciences | 273.3% | 181.7% |
| 6 | NXTC | NextCure | 214.0% | -60.6% |
| # | Ticker | Company Name | 1-M Returns |
YTD Returns |
|---|---|---|---|---|
| 1 | YYAI | Airwa | -98.9% | -99.7% |
| 2 | NXTT | Next Technology | -93.3% | -98.8% |
| 3 | MBRX | Moleculin Biotech | -83.8% | -88.4% |
| 4 | KPTI | Karyopharm Therapeutics | -81.7% | -73.5% |
| 5 | CAPR | Capricor Therapeutics | -81.2% | -85.5% |
| 6 | LESL | Leslies | -78.7% | -7.9% |
| 7 | ONFO | Onfolio | -78.6% | -91.2% |
A movers list is a map of attention, not a set of instructions.
The tables earlier in this report are best used as a starting point for research. A large daily move, like the -50.5% return for ThredUp (TDUP), signals intense focus and a potential repricing of risk. The disciplined follow-up is to examine the business itself. ThredUp, for instance, has a market value of about $403.8 million and its revenue grew 20.4% over the last twelve months. Such facts provide context that a price change alone cannot.
The next step is never to trade the list; it is to test it. Our Guidance Momentum screen shows which risers have management raising guidance behind them, and our Buy the Dip screen shows which of the fallers still generate the growth and cash that make a recovery plausible.
Volatility Is The Cost Of Owning Stocks. Concentration Makes It A Bill
Every name on these lists moved this much in a single day. A diversified holder reads that as noise; a concentrated holder feels it as real money. The difference is not the stock, it is the portfolio around it.
Building that portfolio is what the Trefis High Quality (HQ) Portfolio does: roughly 30 businesses with the cash generation and balance-sheet strength to absorb bad days, selected and rebalanced by rules. It has a track record of outpacing a benchmark that combines the three major indices – the S&P 500, S&P Mid-cap, and Russell 2000. Let the movers list remind you why diversification exists.